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US3812647A Expired / Lapsed US ⏱️ 0.0 years remaining

Apparatus for stacking and packaging food products

Assignee: Pillsbury Co
•
Filing: 1972-11-29
•
Granted: 1974-05-28
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Expires: 1992-11-29
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Abstract

Abstract Flat, disc-shaped food products are packaged by first transferring the products from a continuously moving belt conveyor to a group of continuously moving endless spreading conveyors of a smaller width which carry the articles generally in the same direction but are oriented relative to one another in a fan arrangement to spread out the rows of articles laterally. At the ends of the spreading conveyors the pieces drop onto an accumulator table which allows six pieces to be stacked one on top of another. The stack is indexed onto a constant speed turntable which moves the entire stack of six to a predetermined holding station for loading onto a horizontally disposeed bucket conveyor. When one of the buckets comes into alignment with the stack, suitable sensing and actuating means causes the stack to be transferred into the bucket. The bucket conveyor motion is continuous. The buckets, therefore, move sequentially past the turntable loading stations. As each bucket passes the loading station, material is transferred to the bucket only if empty and only if the stack is present in the loading position. Once loaded in the bucket conveyor, the stack is transferred to a carton loading location where an extendable pusher arm engages the stack in the bucket and transfers it to a carton positioned in alignment with the bucket. The carton is then closed and sealed conventionally.

Inventors

  • 👤 R Bertling
  • 👤 E Kerr

Bibliographic Details

Application Number —
Jurisdiction US
Data Source google_patents
Last Synchronized 2026-11-04 11:47
CPC Classifications
B; B65; B65B; B65B57/00; B65B57/20; B65B23/00; B65B23/10; B65B23/12; B65B23/14

Claims Analysis

Total Claims: 10
Claim 1
Independent Claim 157 words
A packaging apparatus comprising in combination, conveyor means for successively feeding a plurality of food articles to an accumulation location where each falls from the conveyor means and lands upon the preceding article in a stacked condition, sensor means adjacent said articles that have landed upon one another to determine when a sufficient number of said articles are present in the stack, said sensor means being operatively connected to an actuator means for transferring the stacked articles to a bucket conveyor having a plurality of buckets thereon for conveying the stack in a given feed direction, means locating a plurality of cartons each adjacent one of the buckets and in alignment therewith and an extensible loading arm means adapted to engage the stack and press the same laterally in a direction normal to the direction of travel and into the carton to thereby fill the carton and further means for withdrawing the loading arm from the carton.
Claim 2
Dependent Claim 157 words
A packaging apparatus comprising in combination, conveyor means for successively feeding a plurality of food articles to an accumulation location where each falls from the conveyor means and lands upon the preceding article in a stacked condition, sensor means adjacent said articles that have landed upon one another to determine when a sufficient number of said articles are present in the stack, said sensor means being operatively connected to an actuator means for transferring the stacked articles to a bucket conveyor having a plurality of buckets thereon for conveying the stack in a given feed direction, means locating a plurality of cartons each adjacent one of the buckets and in alignment therewith and an extensible loading arm means adapted to engage the stack and press the same laterally in a direction normal to the direction of travel and into the carton to thereby fill the carton and further means for withdrawing the loading arm from the carton.
Claim 3
Independent Claim 207 words
An apparatus for stacking and packaging food products comprising a feed conveyor meanS including an endless conveyor element entrained over horizontally disposed spaced apart rolls for advancing an array of food articles arranged in columns and rows toward the end thereof, a plurality of spreading conveyors being arranged with the ends closest to the feed conveyor being spaced closely together and the opposite ends thereof being spaced further apart in a fan arrangement whereby the articles transferred in the rows and columns on the feed conveyor are advanced upon the spreading conveyors in single diverging rows and a plurality of spaced apart loading assemblies, one assembly being located at the outlet end of each of the spreading conveyors, the spreading conveyors being thereby adapted to feed a plurality of loading assemblies that have a total width which is much greater than the width of the feed conveyor means, each loading assembly including an accumulator means for receiving and retaining a selected number of the articles in stacked arrangement and a transfer means for advancing the stack when the stack is completed to a loading station, a means for transferring each stack at the loading station and means for placing each stack in said station into a carton.
Claim 4
Independent Claim 207 words
An apparatus for stacking and packaging food products comprising a feed conveyor meanS including an endless conveyor element entrained over horizontally disposed spaced apart rolls for advancing an array of food articles arranged in columns and rows toward the end thereof, a plurality of spreading conveyors being arranged with the ends closest to the feed conveyor being spaced closely together and the opposite ends thereof being spaced further apart in a fan arrangement whereby the articles transferred in the rows and columns on the feed conveyor are advanced upon the spreading conveyors in single diverging rows and a plurality of spaced apart loading assemblies, one assembly being located at the outlet end of each of the spreading conveyors, the spreading conveyors being thereby adapted to feed a plurality of loading assemblies that have a total width which is much greater than the width of the feed conveyor means, each loading assembly including an accumulator means for receiving and retaining a selected number of the articles in stacked arrangement and a transfer means for advancing the stack when the stack is completed to a loading station, a means for transferring each stack at the loading station and means for placing each stack in said station into a carton.
Claim 5
Dependent Claim 210 words
Apparatus for stacking and packaging food products comprising in combination conveyor means for carrying a plurality of food articles in sequence to a stacking location defined by a horizontally disposed supporting surface, drive means for running the conveyor continuously to feed the articles in succession to the stationary supporting surface defining an accumulator station whereby each lands upon the one preceding it to form a stack, counting means adjacent to supporting surface to determine when a predetermined number of said articles are present in the stack in the accumulator station and at least one movable accumulator emptying member positioned adjacent the accumulator station in engagement with the stack upon the horizontally disposed surface and operatively associated with the counter for advancing the stack when the stack is completed, a horizontally disposed rotating turntable on a vertically disposed axis adjacent to the accumulator table to receive the stack when the accumulator table emptying member is operated, the rotation of the turntable conveying the stack to a hold location, a transfer arm engagable with the stack in the hold location for transferring the articles off the turntable and loading means operatively associated with the turntable to receive the stack when moved by the pusher arm for loading each stack into a package.
Claim 6
Dependent Claim 210 words
Apparatus for stacking and packaging food products comprising in combination conveyor means for carrying a plurality of food articles in sequence to a stacking location defined by a horizontally disposed supporting surface, drive means for running the conveyor continuously to feed the articles in succession to the stationary supporting surface defining an accumulator station whereby each lands upon the one preceding it to form a stack, counting means adjacent to supporting surface to determine when a predetermined number of said articles are present in the stack in the accumulator station and at least one movable accumulator emptying member positioned adjacent the accumulator station in engagement with the stack upon the horizontally disposed surface and operatively associated with the counter for advancing the stack when the stack is completed, a horizontally disposed rotating turntable on a vertically disposed axis adjacent to the accumulator table to receive the stack when the accumulator table emptying member is operated, the rotation of the turntable conveying the stack to a hold location, a transfer arm engagable with the stack in the hold location for transferring the articles off the turntable and loading means operatively associated with the turntable to receive the stack when moved by the pusher arm for loading each stack into a package.
Claim 7
Dependent Claim 336 words
Apparatus for stacking and packaging food products comprising in combination conveyor means for carrying a plurality of food articles in sequence to a stacking location defined by a horizontally disposed supporting surface, drive means for running the conveyor continuously to feed the articles in succession to the supporting surface, article counting means adjacent to supporting surface to determine when a predetermined number of said articles are present in the stack in the accumulator station and at least one movable accumulator emptying wheel positioned adjacent the accumulator station in engagement with the stack upon the horizontally disposed surface and operatively associated with the counting means for advancing the stack when the stack is completed, a horizontally disposed rotating turntable on a vertically disposed axis adjacent to the accumulator table to receive the stack when the accumulator table emptying member is operated, the rotation of the turntable conveying the stack to a hold location, a transfer arm engagable with the stack in the hold location for transferring the articles off the turntable and loading means operatively associated with the turntable to receive the stack when moved by the transfer arm for loading each stack into a package, said loading means including an endless conveyor means positioned adjacent the hold location on each turntable, said endless conveyor having a plurality of buckets of an appropriate size to rEceive one of the stacks, a first sensor means to determine when one of the buckets is in alignment with the stack on the turntable, a second sensor means to determine whether the bucket is empty when aligned with a selected turntable and means operatively associated with both of the sensing means and the transfer arm to actuate the transfer arm and thereby shift the stack from the turntable into the bucket when the bucket is in alignment therewith and is empty, said endless bucket conveyor being adapted to carry the stack to a carton filling station and means operative at the carton filling station for transferring each stack into a package.
Claim 8
Dependent Claim 336 words
Apparatus for stacking and packaging food products comprising in combination conveyor means for carrying a plurality of food articles in sequence to a stacking location defined by a horizontally disposed supporting surface, drive means for running the conveyor continuously to feed the articles in succession to the supporting surface, article counting means adjacent to supporting surface to determine when a predetermined number of said articles are present in the stack in the accumulator station and at least one movable accumulator emptying wheel positioned adjacent the accumulator station in engagement with the stack upon the horizontally disposed surface and operatively associated with the counting means for advancing the stack when the stack is completed, a horizontally disposed rotating turntable on a vertically disposed axis adjacent to the accumulator table to receive the stack when the accumulator table emptying member is operated, the rotation of the turntable conveying the stack to a hold location, a transfer arm engagable with the stack in the hold location for transferring the articles off the turntable and loading means operatively associated with the turntable to receive the stack when moved by the transfer arm for loading each stack into a package, said loading means including an endless conveyor means positioned adjacent the hold location on each turntable, said endless conveyor having a plurality of buckets of an appropriate size to rEceive one of the stacks, a first sensor means to determine when one of the buckets is in alignment with the stack on the turntable, a second sensor means to determine whether the bucket is empty when aligned with a selected turntable and means operatively associated with both of the sensing means and the transfer arm to actuate the transfer arm and thereby shift the stack from the turntable into the bucket when the bucket is in alignment therewith and is empty, said endless bucket conveyor being adapted to carry the stack to a carton filling station and means operative at the carton filling station for transferring each stack into a package.
Claim 9
Dependent Claim 77 words
The packaging apparatus of claim 3 including, a succession of movable buckets, one such bucket to receive each stack, means locating a plurality of cartons adjacent the buckets and in alignment therewith, an extensible loading arm adapted to engage the stack and press the same laterally in a direction normal to the direction of travel and into one of the cartons to thereby fill the carton and further means for withdrawing the loading arm from the carton.
Claim 10
Dependent Claim 101 words
The apparatus of claim 3 for stacking and packaging food products including endless feed conveyor entrained over horizontally disposed spaced apart rolls for advancing columns and rows of said food products toward the inlet end of the conveyor means, said conveyor means comprising a plurality of spreading conveyors positioned adjacent the feed conveyor, the spreading conveyors being arranged with the ends closest to the second conveyor being spaced closely together and the opposite ends thereof being fanned apart whereby the articles transferred in the rows and columns on the feed conveyor are advanced by the spreading conveyors in single diverging rows.

References Cited (Backward Citations)

US2631767A Cited
US2934869A Cited
US3393645A Cited
US3525443A Cited
US3670474A Cited
US3719019A Cited

USPTO Annuity & Maintenance Windows

Annuity Stage Window Opens Payment Deadline Surcharge Period Until Estimated Fee Status
3.5 Years (Year 4) 1977-05-27 1977-11-26 1978-05-28 $2000.00 Window Closed / Lapsed
7.5 Years (Year 8) 1981-05-27 1981-11-26 1982-05-28 $3760.00 Window Closed / Lapsed
11.5 Years (Year 12) 1985-05-27 1985-11-26 1986-05-28 $7700.00 Window Closed / Lapsed

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