Patent US3753837A successfully refreshed from Google Patents.
US3753837A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Packaging machine for sealing flexible tape to cartons
Assignee: Kloeckner Bartelt Inc
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Filing: 1971-09-07
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Granted: 1973-08-21
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Expires: 1991-09-07
Abstract
Abstract A flexible tape is sealed to the outfolded flaps of a carton while the latter is being supported in a holder and advanced along a predetermined path. The holder is formed with a relieved depression to enable vertical deflection of a raised portion of one of the dust flaps during sealing and thereby make the inner surface of such flap flat and planar so as to effect a better seal between the flap and the tape. A bar sustains part of the sealing thrust exerted on the carton holder and carries a flexible leaf spring which yieldably backs and supports one of the side flaps during sealing.
Inventors
- 👤 R Lense
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 11:44
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/16; B65B7/162; B65B7/164; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1317; Y10T156/1343; Y10T156/17; Y10T156/1702; Y10T156/1712; Y10T156/1734
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
286 words
A machine for applying a flexible sealing tape to the outfolded side flaps and dust flaps of a carton, one of said dust flaps being a compound flap having a partial flap section overlapping a full flap section and defining therewith a distinct step in the inside face of said compound flap, said machine comprising a movable carrier, a carton holder attached to said carrier for advancement along a predetermined path, said holder comprising a generally U-shaped member having an inner web located adjacent said carrier and having leading and trailing horizontal legs extending outwardly from and spanned by said web, said holder supporting a carton in an upright position between its legs with all of said flaps folded outwardly, with said compound dust flap extending along one face of one of said legs and with said partial flap section positioned at the outer end portion of such leg, means for guiding the sealing tape horizontally across the flaps, a sealing shoe movable vertically against the sealing tape to seal the latter to the flaps while pressing the inner side flap against said web and the dust flaps against said legs, and a depression formed in the outer end portion of said one face of said one leg in approximate registry with said partial flap section to permit vertical deflection of the latter and to receive the corresponding portion of said full flap section when said compound dust flap is pressed against said one leg by said sealing shoe thereby to substantially eliminate said step and enable positioning of said partial flap section and the remaining portion of said full flap section in approximately the same horizontal plane during sealing of said tape to said flaps.
Claim 2
Dependent Claim
286 words
A machine for applying a flexible sealing tape to the outfolded side flaps and dust flaps of a carton, one of said dust flaps being a compound flap having a partial flap section overlapping a full flap section and defining therewith a distinct step in the inside face of said compound flap, said machine comprising a movable carrier, a carton holder attached to said carrier for advancement along a predetermined path, said holder comprising a generally U-shaped member having an inner web located adjacent said carrier and having leading and trailing horizontal legs extending outwardly from and spanned by said web, said holder supporting a carton in an upright position between its legs with all of said flaps folded outwardly, with said compound dust flap extending along one face of one of said legs and with said partial flap section positioned at the outer end portion of such leg, means for guiding the sealing tape horizontally across the flaps, a sealing shoe movable vertically against the sealing tape to seal the latter to the flaps while pressing the inner side flap against said web and the dust flaps against said legs, and a depression formed in the outer end portion of said one face of said one leg in approximate registry with said partial flap section to permit vertical deflection of the latter and to receive the corresponding portion of said full flap section when said compound dust flap is pressed against said one leg by said sealing shoe thereby to substantially eliminate said step and enable positioning of said partial flap section and the remaining portion of said full flap section in approximately the same horizontal plane during sealing of said tape to said flaps.
Claim 3
Dependent Claim
81 words
A macHine as defined in claim 1 further including a bar movable laterally toward and away from said path in timed relation with the movement of the carton, said bar engaging and supporting the outer ends of said legs and closing off the open outer end of said holder when moved toward said path, and a resiliently flexible leaf carried on said bar and yieldably backing the outer side flap as the latter is deflected vertically during sealing of said tape.
Claim 4
Dependent Claim
237 words
A machine for applying a flexible sealing tape to the outfolded four flaps of a carton, one of said flaps being a compound flap having a partial flap section overlapping a full flap section and defining therewith a distinct step in the inside face of said compound flap, said machine comprising a movable carrier, a carton holder attached to said carrier for movement therewith, said holder comprising a member having at least one horizontal face and having a recess extending vertically therethrough, said carton being located in said recess with all four of said flaps folded outwardly and with said compound flap extending along said one face of said member, means for guiding the sealing tape horizontally across the flaps, a sealing shoe movable vertically against the sealing tape to seal the latter to the flaps while pressing at least said compound flap against said one face of said member, and a depression formed in said one face of said member in approximate registry with said partial flap section to permit vertical deflection of the latter and to receive the corresponding portion of said full flap section when said compound flap is pressed against said member by said sealing shoe thereby to substantially eliminate said step and enable positioning of said partial flap section and the remaining portion of said full flap section in approximately the same horizontal plane during sealing of said tape to said flaps.
Claim 5
Dependent Claim
237 words
A machine for applying a flexible sealing tape to the outfolded four flaps of a carton, one of said flaps being a compound flap having a partial flap section overlapping a full flap section and defining therewith a distinct step in the inside face of said compound flap, said machine comprising a movable carrier, a carton holder attached to said carrier for movement therewith, said holder comprising a member having at least one horizontal face and having a recess extending vertically therethrough, said carton being located in said recess with all four of said flaps folded outwardly and with said compound flap extending along said one face of said member, means for guiding the sealing tape horizontally across the flaps, a sealing shoe movable vertically against the sealing tape to seal the latter to the flaps while pressing at least said compound flap against said one face of said member, and a depression formed in said one face of said member in approximate registry with said partial flap section to permit vertical deflection of the latter and to receive the corresponding portion of said full flap section when said compound flap is pressed against said member by said sealing shoe thereby to substantially eliminate said step and enable positioning of said partial flap section and the remaining portion of said full flap section in approximately the same horizontal plane during sealing of said tape to said flaps.
Claim 6
Dependent Claim
213 words
A machine for applying a flexible sealing tape to the outfolded side flaps and end flaps of a carton, said machine comprising a movable carrier, a carton holder attached to said carrier for advancement along a predetermined path, said holder comprising a generally U-shaped member having an inner web located adjacent said carrier and having leading and trailing horizontal legs extending outwardly from and spanned by said web, said holder supporting a carton in an upright position between said legs with all of said flaps folded outwardly, with said end flaps extending along said legs and with the inner one of said side flaps extending along said web, means for guiding the sealing tape horizontally across the flaps, a sealing shoe movable vertically against the sealing tape to seal the latter to the flaps while deflecting the flaps vertically, a bar movable laterally toward and away from said path in timed relation with movement of the carton, said bar engaging and supporting the outer ends of said legs and closing off the open outer end of said holder when moved toward said path, and a resiliently flexible leaf carried on said bar and yieldably backing the outer one of said side flaps when such flap is deflected vertically during sealing of said tape.
Claim 7
Dependent Claim
213 words
A machine for applying a flexible sealing tape to the outfolded side flaps and end flaps of a carton, said machine comprising a movable carrier, a carton holder attached to said carrier for advancement along a predetermined path, said holder comprising a generally U-shaped member having an inner web located adjacent said carrier and having leading and trailing horizontal legs extending outwardly from and spanned by said web, said holder supporting a carton in an upright position between said legs with all of said flaps folded outwardly, with said end flaps extending along said legs and with the inner one of said side flaps extending along said web, means for guiding the sealing tape horizontally across the flaps, a sealing shoe movable vertically against the sealing tape to seal the latter to the flaps while deflecting the flaps vertically, a bar movable laterally toward and away from said path in timed relation with movement of the carton, said bar engaging and supporting the outer ends of said legs and closing off the open outer end of said holder when moved toward said path, and a resiliently flexible leaf carried on said bar and yieldably backing the outer one of said side flaps when such flap is deflected vertically during sealing of said tape.
References Cited (Backward Citations)
US2896387A
Cited
US3656682A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-08-20 | 1977-02-19 | 1977-08-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-20 | 1981-02-19 | 1981-08-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-20 | 1985-02-19 | 1985-08-21 | $7700.00 | Window Closed / Lapsed |