US3834114A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging machine and method
Assignee: Stone Container Corp
•
Filing: 1972-08-29
•
Granted: 1974-09-10
•
Expires: 1992-08-29
Abstract
Abstract A packaging machine operable to fold a paperboard blank into a carton about one or more articles to be packaged therein. The machine includes a blank folding station, a flap folding station, a package completion station, a first pusher mechanism for pushing a partially formed carton from the blank folding station to the flap folding station and a second pusher mechanism articulated with the first pusher mechanism and operable to move a partially formed package from the flap folding station to the package completion station at the same time a next succeeding partially formed carton is being moved by the first pusher mechanism from the blank folding station to the flap folding station. The stations are arranged in line with the direction of movement of the first and second pusher mechanism. The method includes the steps of folding a carton blank with a product thereon at a blank folding station to erect end wall panels and partial side wall panels, then folding a top wall panel of the carton downwardly over the product while moving the partially formed carton to a flap folding station, then folding side flaps extending from the top wall panel against the partial side wall panels at the flap folding station, and folding an end flap hingedly connected to the top wall panel against one end wall at the package completion station to seal the carton into a complete package. The steps are performed sequentially along an in-line path of movement.
Inventors
- 👤 R Johnson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 00:31
CPC Classifications
B; B65; B65B; B65B11/00; B65B11/004; B65B11/06; B65B11/18
Claims Analysis
Total Claims: 64
Claim 1
Independent Claim
229 words
A packaging machine for folding a paperboard blank into a carton about one or more articles to be packaged, said packaging machine comprising a blank folding station where a blank with one or more articles arranged thereon is partially folded to erect, from the blank, end wall panels and side wall panels of the carton; a flap folding station where side flaps extending from a top wall panel of the partially formed carton are folded against the side wall panels; a package completion station where an end flap of the carton is folded against at least one end wall panel of the carton; first pusher means operable on a forward stroke thereof to push the partially formed carton from said blank folding station to said flap folding station during which movement of the partially formed carton a top wall panel of the carton is folded downwardly over the article or articles; and second pusher means articulated to said first pusher means and operable therewith on said forward stroke to push a partially formed package from said flap folding station to said package completion station at the same time a subsequent partially formed carton is being pushed by said first pusher means from said blank folding station to said flap folding station, said station being arranged in line with the direction of movement of said first and second pusher means.
Claim 2
Dependent Claim
229 words
A packaging machine for folding a paperboard blank into a carton about one or more articles to be packaged, said packaging machine comprising a blank folding station where a blank with one or more articles arranged thereon is partially folded to erect, from the blank, end wall panels and side wall panels of the carton; a flap folding station where side flaps extending from a top wall panel of the partially formed carton are folded against the side wall panels; a package completion station where an end flap of the carton is folded against at least one end wall panel of the carton; first pusher means operable on a forward stroke thereof to push the partially formed carton from said blank folding station to said flap folding station during which movement of the partially formed carton a top wall panel of the carton is folded downwardly over the article or articles; and second pusher means articulated to said first pusher means and operable therewith on said forward stroke to push a partially formed package from said flap folding station to said package completion station at the same time a subsequent partially formed carton is being pushed by said first pusher means from said blank folding station to said flap folding station, said station being arranged in line with the direction of movement of said first and second pusher means.
Claim 3
Dependent Claim
52 words
The packaging machine according to claim 1 including means for moving said second pusher means to a position where said second pusher means will travel in a path which does not engage the partially formed package at the flap folding station during a return stroke of said first and second pusher means.
Claim 4
Dependent Claim
55 words
The packaging machine according to claim 2 wherein said means for moving said second pusher means is operable to move said second pusheR means to a position where said second pusher means will travel under a partially completed package at said flap folding station during said return stroke of said first and second pusher means.
Claim 5
Dependent Claim
46 words
The packaging machine according to claim 1 including means for holding said second pusher means in a package engaging position prior to and during said forward stroke of said second pusher means, and means for lowering said second pusher means after completion of said forward stroke.
Claim 6
Dependent Claim
76 words
The packaging machine according to claim 4 wherein said means for holding said second pusher means in a package engaging position during said forward stroke of said second pusher means includes at least one guide rail extending in said given direction and at least one roller assembly mounted on said second pusher means and situated so as to engage and ride on said guide rail during said forward stroke of said first and second pusher means.
Claim 7
Dependent Claim
51 words
The packaging machine according to claim 5 wherein said packaging machine includes at least one seat spaced from the forward end of said guide rail and located at said package completion station for receiving and holding said roller assembly at the completion of said forward stroke of said second pusher means.
Claim 8
Dependent Claim
107 words
The packaging machine according to claim 4 wherein said means for lowering said second pusher means includes at least one cam follower mounted on said second pusher means and a cam track which extends between said stations and on which said cam follower rides during a return stroke of said second pusher means, said cam track having a first, horizontally extending cam surface which extends beneath said flap folding station and a second inclined cam surface which extends upwardly from said first cam surface at said package completion station to a position where it receives said cam follower when said second pusher means begins said return stroke.
Claim 9
Dependent Claim
108 words
The packaging machine according to claim 7 wherein said second pusher means has a second cam follower mounted thereon, said blank folding station includes a generally vertically reciprocable carriage which is operable to carry a paperboard blank downwardly into said machine past stationary folding members for erecting the side and end wall panels, and a reciprocable cam track is operatively connected to said carriage and is moved forwardly in said given direction when said carriage is moved downwardly, said cam track having a cam surface which engages and raises said second cam follower during said forward movement to lift said second pusher means to a package engaging position.
Claim 10
Dependent Claim
41 words
The packaging machine according to claim 1 wherein said second pusher means are initially in a lowered position and said packaging machine includes means for raising said second pusher means to a package engaging position prior to said forward stroke thereof.
Claim 11
Dependent Claim
69 words
The packaging machine according to claim 9 wherein said blank folding station includes first means for folding a blank about two pairs of score lines to erect, from the blank, side and end wall panels of the carton, said first means being operatively connected to said means for raising said second pusher means in such a manner that operation of said first means causes operation of said raising means.
Claim 12
Dependent Claim
73 words
The packaging machine according to claim 9 wherein said raising means includes a cam follower on said second pusher means and a movable cam track which is mounted for movement to and from said blank folding station and which has a cam surface which engages and raises said cam follower during outward movement of said cam track from said blank folding station to lift said second pusher means to said package engaging position.
Claim 13
Dependent Claim
44 words
A packaging machine according to claim 1 wherein said second pusher means includes two spaced apart pusher members each having a first end pivotally connected to said first pusher means and a second end adapted to engage a corner of a partially formed package.
Claim 14
Dependent Claim
25 words
The packaging machine according to claim 12 wherein a bAr extends transversely of and between said pusher members and is connected to said pusher members.
Claim 15
Dependent Claim
47 words
The packaging machine according to claim 13 wherein at least one cam follower is mounted on said bar, and said machine includes a movable cam track operable upon movement thereof to engage and raise said cam follower to lift said pusher members to a package engaging position.
Claim 16
Dependent Claim
84 words
The packaging machine according to claim 13 wherein at least one cam follower is mounted on said bar and said machine includes a cam track extending between said stations and having a first, horizontally extending cam surface located beneath said flap folding station and a second inclined cam surface at said package completion station, said second cam surface extending upwardly from said first cam surface to a position for receiving said cam follower at the beginning of a return stroke of said pusher members.
Claim 17
Dependent Claim
216 words
The packaging machine according to claim 13 wherein each pusher member has a roller assembly mounted thereon, said flap folding station has two guide rails extending substantially the length thereof and terminating at said package completion station, a first pair of cam followers are mounted on said bar, one at each end of said bar, said machine includes two spaced apart movable cam tracks operable to engage and raise said cam followers to lift said pusher members to a package engaging position and to lift said roller assemblies to a position in line with said guide rails, said cam followers engaging said cam track during at least a portion of each forward stroke of said pusher members and at least until said roller assemblies are above said guide rails, a second pair of cam followers are mounted on said bar, one at each end of said bar, and said machine includes two spaced apart stationary cam tracks each extending between said stations and each having a first horizontally extending cam surface located beneath said flap folding station and a second inclined cam surface at said package completion station, said second cam surface extending upwardly to a position for receiving one of said second cam followers at the beginning of a return stroke of said pusher members.
Claim 18
Dependent Claim
85 words
The packaging machine according to claim 12 wherein each of said pusher members has a jaw at the free end thereof, said jaw being generally V-shaped and having first and second jaw surfaces which are constructed in such a manner that when said pusher members are, in a package engaging position, said first jaw surface is generally horizontal to engage the underside of a partially formed package and said second jaw surface is generally vertical to engage one end wall of the partially formed package.
Claim 19
Dependent Claim
54 words
The packaging machine according to claim 17 wherein a guide flange extends angularly outwardly from each second jaw surface, said guide flanges being adapted to guide a partially completed package into engagement with said pusher members as said pusher members are moved into engagement with the partially completed package at said flap folding station.
Claim 20
Dependent Claim
97 words
The packaging machine according to claim 18 wherein a rib is situated at the inside corner of the junction between each guide flange and each second jaw surface, each of said ribs being in position to engage the end edge of one of the side wall panels of the partially completed package and bear thereagainst when said pusher members are moved forwardly, thereby to prevent the vertically disposed second jaw surfaces from pushing the rearwardly facing end wall of the partially completed package inwardly of the side wall panels during said forward stroke of said pusher members.
Claim 21
Dependent Claim
44 words
The packaging machine according to claim 1 including means for applying an adhesive to the side wall panels of each partially formed carton while said first pusher means is moving the partially formed carton from said blank folding station to said flap folding station.
Claim 22
Dependent Claim
29 words
The packaging machine according to claim 20 wherein said adhesive applying means includes a pair of spacEd apart adhesive applicators and cam means for controlling operation of said applicators.
Claim 23
Dependent Claim
34 words
The machine according to claim 21 wherein said cam means includes a cam track mechanism which has an adjustable cam track and which is movable with said first pusher means and a cam follower.
Claim 24
Dependent Claim
78 words
The packaging machine according to claim 22 wherein said cam track mechanism includes a cam track holder, capstan blocks releasably mounted in said holder, a cable trained around said capstan blocks and forming said cam track which engages said cam follower, and means for adjusting the tension on said cable whereby the cable can be made slack to permit adjustment of the position of the capstan blocks and then can be made taut to form said cam track.
Claim 25
Dependent Claim
131 words
The packaging machine according to claim 1 wherein said flap folding station includes means for folding side flaps hingedly connected to the top wall panel of a partially formed carton downwardly into engagement with the side wall panels, said means including first and second tuckers which are mounted for movement to and from positions adjacent the side walls of a partially formed carton at said flap folding station, said tuckers being operable to engage and move the side flaps hingedly connected to the top wall panel downwardly into engagement with the side wall panels of the partially formed carton, and being operable to hold the side flaps in engagement with the side wall panels while the carton, now forming part of a partially formed package, is at said flap folding station.
Claim 26
Dependent Claim
50 words
The packaging machine according to claim 1 wherein said package completion station includes a flap folding mechanism for folding an end flap extending from the top wall panel of a partially formed package downwardly into engagement with one end wall of the partially formed package thereby to complete the package.
Claim 27
Dependent Claim
34 words
The packaging machine according to claim 25 including means for applying adhesive to the one end wall at selected locations along the lateral extent thereof prior to the operation of said flap folding mechanism.
Claim 28
Dependent Claim
87 words
The packaging machine according to claim 26 wherein said adhesive applying means includes a carriage mounting an adhesive applying head, means for moving said carriage at a predetermined speed in a direction transversely of said partially formed package and means for operating said head at selected intervals of travel of said carriage during each stroke movement of said carriage between opposite sides of said package completion station for applying adhesive to the one end wall at selected locations along the lateral extent of the one end wall.
Claim 29
Dependent Claim
26 words
The packaging machine according to claim 27 wherein said carriage is mounted on a bar extending transversely of the direction of movement of said pusher means.
Claim 30
Dependent Claim
28 words
The packaging machine according to claim 27 wherein said carriage is operated by said moving means at the beginning of the return stroke of said second pusher means.
Claim 31
Dependent Claim
89 words
The packaging machine according to claim 27 wherein said carriage has a guide bar extending horizontally therefrom parallel to the direction of movement of said pusher means, said guide bar having a rounded free end for slightly engaging and riding along the upper margin of the one end wall of the partially completed package as said carriage is moved across said package completion station to maintain the one end wall spaced a predetermined distance from the adhesive applying head while the carriage is moving across said package completion station.
Claim 32
Dependent Claim
19 words
The packaging machine according to claim 27 including cam means for controlling the operation of said adhesive applying head.
Claim 33
Dependent Claim
32 words
The packaging machine according to claim 31 wherein said cam means includes means for forming a cam track which extends across said package completion station, and a cam follower on said carriage.
Claim 34
Dependent Claim
64 words
The packaging machine according to claim 32 wherein said cam track forming means includes a cam track holder, a plurality of releasably mounted capstan blocks in said holder, a cable trained about said capstan blocks and forming said cam track, and means for adjusting the tension on said cable for permitting adjustment of said capstan blocks to adjust the locations of said cam track.
Claim 35
Dependent Claim
92 words
The packaging machine according to claim 30 wherein said package completion station includes means for applying pressure against the margin of the top wall panel adjacent the end flap so that the inner surface of the top wall bears against the top edge of the one end wall, whereby, after the guide bar has been moved past the one end wall, the frictional engagement between the top edge of the one end wall and the top wall panel holds the one end wall in place while the end flap is folded thereagainst.
Claim 36
Dependent Claim
69 words
The packaging machine according to claim 25 wherein said package completion station includes means for applying pressure against the margin of the top wall panel adjacent the end flap so that the inner surface of the top wall panel bears against the top edge of the one end wall to prevent the one end wall from being forced inwardly of the package when the end flap is folded thereagainst.
Claim 37
Dependent Claim
51 words
The packaging machine according to claim 35 wherein said pressure applying means includes a plurality of spring biased rollers located above the path of travel of the packages and in position to engage and to bear against the top wall panel of a partially formed package at the package completion station.
Claim 38
Dependent Claim
70 words
The packaging machine according to claim 25 wherein said flap folding mechanism includes an elongate bar which extends transversely of the direction of movement of said second pusher means and which has an elongate flat surface, and means for rotating said bar to bring said elongate flat surface into engagement with said end flap for moving said end flap into engagement with the upper margin of the one end wall.
Claim 39
Dependent Claim
57 words
The packaging machine according to claim 37 including control means for controlling rotation of said elongate bar, said control means being operable to rotate said bar upwardly at the beginning of said forward stroke of said second pusher means and to rotate said bar downwardly at the beginning of a return stroke of said second pusher means.
Claim 40
Dependent Claim
111 words
The packaging machine according to claim 1 wherein said package completion station includes a compression chamber into which partially completed packages are moved by said second pusher means, said compression chamber having means along the sides thereof for engaging and applying pressure against the folded side flaps of completed packages and for partially inhibiting forward movement of the packages so that a succeeding package pushed into the compression chamber by the second pusher means bears against the one end wall of the preceding package to apply pressure to the folded end flap of the preceding package, the movement of the preceding package being partially inhibited by said pressure applying side walls.
Claim 41
Dependent Claim
131 words
The packaging machine according to claim 1, including at least one guiding and folding member which extends between said blank folding station and said flap folding station in position to engage the top wall panel of a partially formed carton when it is moved to said flap folding station, said guiding and folding member having an elongate portion which extends longitudinally across said blank folding station and a curved portion which extends upwardly from the elongate portion at said blank folding station so as to be in position to guide and fold the top wall panel of a partially formed carton downwardly in proper alignment with the side and end wall panels over the article or articles being packaged as the partially formed carton is moved to said flap folding station.
Claim 42
Dependent Claim
56 words
The packaging machine according to claim 40, including a vertically adjustable framework situated at said flap folding station and mounting thereunder said at least one guiding and folding member, and means for vertically moving said framework whereby the vertical position of said framework Can be changed to enable said machine to handle packages of different heights.
Claim 43
Dependent Claim
60 words
The packaging machine according to claim 1, wherein said first pusher means includes a supporting framework and an adjustable platform mounted on said framework, said platform being laterally adjustable for adjusting the width of said first pusher means and also said second pusher means connected thereto whereby said packaging machine can be easily adapted for forming packages of different widths.
Claim 44
Dependent Claim
44 words
The packaging machine according to claim 5, including an adjustable mechanism for supporting said at least one guide rail, and means for adjusting said mechanism to change the position of said at least one guide rail laterally of the longitudinal axis of said machine.
Claim 45
Dependent Claim
41 words
The packaging machine according to claim 13, wherein said pusher members are slidably mounted on said bar so that the position of said pusher members relative to each other can be easily adjusted by sliding said pusher members on said bar.
Claim 46
Dependent Claim
72 words
The packaging machine according to claim 16, wherein each of said guide members is mounted on a longitudinally extending frame member, each frame member being supported at each end thereof on a block which is screw threadedly received on a threaded shaft and wherein said machine includes means for rotating said threaded shafts simultaneously to move said frame members closer or farther apart and thereby change the positions of said guide rails.
Claim 47
Dependent Claim
45 words
The packaging machine according to claim 21, wherein each of said adhesive applicators is supported on an adjustably mounted frame member and wherein said machine includes means for moving said frame members closer or farther apart thereby to adjust the positions of said adhesive applicators.
Claim 48
Dependent Claim
44 words
The packaging machine according to claim 24, including a vertically adjustable framework mounted at said flap folding station and said flap folding means being supported by said framework whereby the height of said flap folding means can be adjusted for packages of different heights.
Claim 49
Dependent Claim
52 words
The packaging machine according to claim 24 wherein a vertically adjustable framework is mounted at said flap folding station and each of said tuckers is releasably supported on a bar extending laterally across said machine whereby the distance between said tuckers can be easily adjusted by sliding said tuckers on said bars.
Claim 50
Dependent Claim
34 words
The packaging machine according to claim 26, wherein said flap folding mechanism and said adhesive applying means are supported on a vertically adjustable framework and said machine includes means for vertically moving said framework.
Claim 51
Dependent Claim
51 words
The packaging machine according to claim 39, wherein said compression chamber includes spaced apart pressure applying sidewalls and means for moving said sidewalls closer or farther apart thereby to adjust the pressure applied by said sidewalls to completed packages and to enable the compression chamber to handle packages of different widths.
Claim 52
Dependent Claim
257 words
A packaging machine operable to form paperboard blanks into cartons about one or more articles to be packaged, said machine being of the type having an entrance opening over which a paperboard blank is placed, a carriage which is movable to and from said entrance opening, which receives the blank thereon, and which has means for holding the blank thereto during movement thereof, means adjacent said entrance opening for guiding the blank during its movement with said carriage in a first direction and for folding the blank into a partially formed carton as it is carried downwardly into said machine on said carriage, and first pusher means for pushing the partially formed carton from said carriage in a second direction laterally of said first direction to a flap folding station in said machine and past a stationary folding member which folds a top wall panel of the carton downwardly over the article or articles and which slidingly and frictionally engages the top wall panel to hold the same in place, and said machine including sEcond pusher means articulated to said first pusher means and operable therewith to push a partially formed package from said flap folding station to a package completion station in said machine at the same time a subsequent partially formed carton is being pushed by said first pusher means from said carriage to said flap folding station, said carriage, said flap folding station and said package completion station being arranged in line with the direction of movement of said first and second pusher means.
Claim 53
Dependent Claim
257 words
A packaging machine operable to form paperboard blanks into cartons about one or more articles to be packaged, said machine being of the type having an entrance opening over which a paperboard blank is placed, a carriage which is movable to and from said entrance opening, which receives the blank thereon, and which has means for holding the blank thereto during movement thereof, means adjacent said entrance opening for guiding the blank during its movement with said carriage in a first direction and for folding the blank into a partially formed carton as it is carried downwardly into said machine on said carriage, and first pusher means for pushing the partially formed carton from said carriage in a second direction laterally of said first direction to a flap folding station in said machine and past a stationary folding member which folds a top wall panel of the carton downwardly over the article or articles and which slidingly and frictionally engages the top wall panel to hold the same in place, and said machine including sEcond pusher means articulated to said first pusher means and operable therewith to push a partially formed package from said flap folding station to a package completion station in said machine at the same time a subsequent partially formed carton is being pushed by said first pusher means from said carriage to said flap folding station, said carriage, said flap folding station and said package completion station being arranged in line with the direction of movement of said first and second pusher means.
Claim 54
Dependent Claim
112 words
In a packaging machine which is operable to fold a blank into a carton about an article or articles to be packaged and which includes a blank folding station, a flap folding station, a package completion station, and first pusher means for pushing a partially formed carton from said blank folding station to said flap folding station, the improvement comprising second pusher means articulated to said first pusher means and operable therewith for moving a partially formed package from said flap folding station to said package completion station at the same time said first pusher means is moving a partially formed carton from said blank folding station to said flap folding station.
Claim 55
Dependent Claim
112 words
In a packaging machine which is operable to fold a blank into a carton about an article or articles to be packaged and which includes a blank folding station, a flap folding station, a package completion station, and first pusher means for pushing a partially formed carton from said blank folding station to said flap folding station, the improvement comprising second pusher means articulated to said first pusher means and operable therewith for moving a partially formed package from said flap folding station to said package completion station at the same time said first pusher means is moving a partially formed carton from said blank folding station to said flap folding station.
Claim 56
Independent Claim
260 words
A method for folding paperboard blanks into cartons about one or more articles to be packaged, said method comprising the steps of: folding a paperboard blank with one or more articles arranged thereon at a blank folding station to erect, from the blank, end wall panels and side wall panels of the carton; moving the partially formed carton in a given direction from the blank folding station to a flap folding station while simultaneously folding a top wall panel of the carton downwardly over the article or articles; folding side flaps, which are hingedly connected to the top wall panel of the carton, against the side wall panels of the carton at the flap folding station; moving the partially formed package in the given direction from the flap folding station to a package completion station at the same time a subsequent partially formed carton is being moved from the blank folding station to the flap folding station; moving an adhesive applicator transversely of said partially formed package and adjacent to one end wall thereof and operating said applicator to apply adhesive to said one end wall at selected locations along the lateral extent of said one end wall while simultaneously moving a guide member along and slightly in engagement with said one end wall to maintain said one end wall spaced a predetermined distance from said adhesive applicator; and folding an end flap hingedly connected to the top wall panel of the partially formed package against said one end wall, said stations being arranged in line with the given direction.
Claim 57
Independent Claim
260 words
A method for folding paperboard blanks into cartons about one or more articles to be packaged, said method comprising the steps of: folding a paperboard blank with one or more articles arranged thereon at a blank folding station to erect, from the blank, end wall panels and side wall panels of the carton; moving the partially formed carton in a given direction from the blank folding station to a flap folding station while simultaneously folding a top wall panel of the carton downwardly over the article or articles; folding side flaps, which are hingedly connected to the top wall panel of the carton, against the side wall panels of the carton at the flap folding station; moving the partially formed package in the given direction from the flap folding station to a package completion station at the same time a subsequent partially formed carton is being moved from the blank folding station to the flap folding station; moving an adhesive applicator transversely of said partially formed package and adjacent to one end wall thereof and operating said applicator to apply adhesive to said one end wall at selected locations along the lateral extent of said one end wall while simultaneously moving a guide member along and slightly in engagement with said one end wall to maintain said one end wall spaced a predetermined distance from said adhesive applicator; and folding an end flap hingedly connected to the top wall panel of the partially formed package against said one end wall, said stations being arranged in line with the given direction.
Claim 58
Dependent Claim
88 words
The method according to claim 53 including the step of applying pressure against the margin of said top wall panel adjacent said end flap so that the inner surface of said top wall panel bears against the top edge of said one end wall thereby, after said guide member has been moved past said one end wall, the frictional engagement between said top edge of said one end wall and said top wall panel holds said one end wall in place while said end flap is folded thereagainst.
Claim 59
Independent Claim
243 words
A method of folding paperboard blanks into cartons about one or more articles to be packaged, said method comprising the steps of: folding a paperboard blank with one or more articles arranged thereon at a blank folding station to erect, from the blank, end wall panels and side wall panels of the carton; moving the partially formed carton in a given direction from the blank folding station to a flap folding station while simultaneously folding a top wall panel of the carton downwardly over the article or articles; folding side flaps, which are hingedly connected to the top wall panel of the carton, against the side wall panels of the carton at the flap folding station; moving the partially formed package in the given direction from the flap folding station to a package Completion station at the same time a subsequent partially formed carton is being moved from the blank folding station to the flap folding station; folding an end flap hingedly connected to the top wall panel of the partially formed package against one end wall thereof; and applying pressure against the margin of the top wall panel adjacent said end flap so that the inner surface of said top wall panel bears against the top edge of said one end wall to prevent said one end wall from being forced inwardly of said package when said end flap is folded thereagainst, said stations being arranged in line with the given direction.
Claim 60
Independent Claim
243 words
A method of folding paperboard blanks into cartons about one or more articles to be packaged, said method comprising the steps of: folding a paperboard blank with one or more articles arranged thereon at a blank folding station to erect, from the blank, end wall panels and side wall panels of the carton; moving the partially formed carton in a given direction from the blank folding station to a flap folding station while simultaneously folding a top wall panel of the carton downwardly over the article or articles; folding side flaps, which are hingedly connected to the top wall panel of the carton, against the side wall panels of the carton at the flap folding station; moving the partially formed package in the given direction from the flap folding station to a package Completion station at the same time a subsequent partially formed carton is being moved from the blank folding station to the flap folding station; folding an end flap hingedly connected to the top wall panel of the partially formed package against one end wall thereof; and applying pressure against the margin of the top wall panel adjacent said end flap so that the inner surface of said top wall panel bears against the top edge of said one end wall to prevent said one end wall from being forced inwardly of said package when said end flap is folded thereagainst, said stations being arranged in line with the given direction.
Claim 61
Independent Claim
217 words
A method for folding paperboard blanks into cartons about one or more articles to be packaged, said method comprising the steps of: folding a paperboard blank with one or more articles arranged thereon at a blank folding station to erect, from the blank, end wall panels and side wall panels of the carton; moving the partially formed carton in a given direction from the blank folding station to a flap folding station while simultaneously folding a top wall panel of the carton downwardly over the article or articles; folding side flaps, which are hingedly connected to the top wall panel of the carton, against the side wall panels of the carton at the flap folding station; moving the partially formed package in a given direction from the flap folding station to a package completion station including a compression chamber at the same time a subsequent partially formed carton is being moved from the blank folding station to the flap folding station; folding an end flap hingedly connected to the top wall panel of the partially formed package against one end wall thereof; and intermittently pushing completed packages through said compression chamber and applying pressure against said folded flaps while said completed packages are in said compression chamber, said stations being arranged in line with the given direction.
Claim 62
Independent Claim
217 words
A method for folding paperboard blanks into cartons about one or more articles to be packaged, said method comprising the steps of: folding a paperboard blank with one or more articles arranged thereon at a blank folding station to erect, from the blank, end wall panels and side wall panels of the carton; moving the partially formed carton in a given direction from the blank folding station to a flap folding station while simultaneously folding a top wall panel of the carton downwardly over the article or articles; folding side flaps, which are hingedly connected to the top wall panel of the carton, against the side wall panels of the carton at the flap folding station; moving the partially formed package in a given direction from the flap folding station to a package completion station including a compression chamber at the same time a subsequent partially formed carton is being moved from the blank folding station to the flap folding station; folding an end flap hingedly connected to the top wall panel of the partially formed package against one end wall thereof; and intermittently pushing completed packages through said compression chamber and applying pressure against said folded flaps while said completed packages are in said compression chamber, said stations being arranged in line with the given direction.
Claim 63
Independent Claim
229 words
A method for folding paperboard blanks into cartons about one or more articles to be packaged, said method comprising the steps of: folding a paperboard blank with one or more articles arranged thereon at a blank folding station to erect, from the blank, end wall panels and side wall panels of the carton with said end wall panels folded inwardly of said side wall panels; moving the partially formed carton in a given direction from the blank folding station to a flap folding station while simultaneously holding at least two edges of said side wall panels of each partially formed carton in a predetermined position relative to said one end wall and while simultaneously folding a top wall panel of the carton downwardly over the article or articles; folding side flaps, which are hingedly connected to the top wall panel of the carton, against the side wall panels of the carton at the flap folding station; moving the partially formed package in the given direction from the flap folding station to a package completion station at the same time a subsequent partially formed carton is being moved from the blank folding station to the flap folding station; and folding an end flap hingedly connected to the top wall panel of the partially formed package against one end wall thereof, said stations being arranged in line with the given direction.
Claim 64
Independent Claim
229 words
A method for folding paperboard blanks into cartons about one or more articles to be packaged, said method comprising the steps of: folding a paperboard blank with one or more articles arranged thereon at a blank folding station to erect, from the blank, end wall panels and side wall panels of the carton with said end wall panels folded inwardly of said side wall panels; moving the partially formed carton in a given direction from the blank folding station to a flap folding station while simultaneously holding at least two edges of said side wall panels of each partially formed carton in a predetermined position relative to said one end wall and while simultaneously folding a top wall panel of the carton downwardly over the article or articles; folding side flaps, which are hingedly connected to the top wall panel of the carton, against the side wall panels of the carton at the flap folding station; moving the partially formed package in the given direction from the flap folding station to a package completion station at the same time a subsequent partially formed carton is being moved from the blank folding station to the flap folding station; and folding an end flap hingedly connected to the top wall panel of the partially formed package against one end wall thereof, said stations being arranged in line with the given direction.
References Cited (Backward Citations)
US2885842A
Cited
US3086337A
Cited
US3482372A
Cited
US3332207A
Cited
US3443354A
Cited
US3530640A
Cited
US3358567A
Cited
US3543469A
Cited
US3665675A
Cited
US3729887A
Cited
US3771282A
Cited
US3777448A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-09-09 | 1978-03-11 | 1978-09-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-09-09 | 1982-03-11 | 1982-09-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-09-09 | 1986-03-11 | 1986-09-10 | $7700.00 | Window Closed / Lapsed |