US3755986A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gusset reformer
Assignee: Graphic Packaging International LLC
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Filing: 1971-09-30
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Granted: 1973-09-04
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Expires: 1991-09-30
Abstract
Abstract An improved gusset reformer for reforming the open portion of a bag after the bag has been completely filled with a plurality of loose objects. The improved gusset reformer machine reforms the bag gussets while conveying the fully filled bag of objects from a filling station to a sewing station where the upper edges of the bag may be sewn shut. The reforming portion of the machine comprises a movable carriage mounted on a stationary frame with means carried by the carriage for manipulating the gussets of the bag. The movable carriage contains a pusher member which pushes the filled bag along a stationary trough fixedly attached to a stationary frame. Also contained on the machine are means for holding the reformed gussets in a reformed position prior to the sewing operation and after the manipulating means have been removed from the bag.
Inventors
- 👤 D Hudson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:11
CPC Classifications
B; B65; B65B; B65B7/00; B65B7/02; B65B7/06
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
178 words
An improved gusset reformer for reforming the open portion of a varying size of self-opening style bags having a plurality of preformed vertical scores formed thereon forming the gusset for the bag, comprising: a. a frame; b. inner finger means, carried by and positioned on said frame, for vertical movement into and out of the bag in proximity to the gussets; c. outer finger means, carried by and positioned on said frame, for vertical movement downwardly and upwardly along the outer edge of the bag in proximity to the gussets and simultaneously with the movement of the inner finger means; d. means, carried by said frame, for lowering said inner and outer fingers into and out of the bag in proximity to the gussets, said means for lowering serving also to manipulate said inner and outer finger means, after lowering, so that said inner and outer finger means simultaneously reverse their position in a longitudinal direction at the bag edge thereby quickly reforming the bag gusset to its original closed position along the plurality of pre-formed vertical scores.
Claim 2
Dependent Claim
178 words
An improved gusset reformer for reforming the open portion of a varying size of self-opening style bags having a plurality of preformed vertical scores formed thereon forming the gusset for the bag, comprising: a. a frame; b. inner finger means, carried by and positioned on said frame, for vertical movement into and out of the bag in proximity to the gussets; c. outer finger means, carried by and positioned on said frame, for vertical movement downwardly and upwardly along the outer edge of the bag in proximity to the gussets and simultaneously with the movement of the inner finger means; d. means, carried by said frame, for lowering said inner and outer fingers into and out of the bag in proximity to the gussets, said means for lowering serving also to manipulate said inner and outer finger means, after lowering, so that said inner and outer finger means simultaneously reverse their position in a longitudinal direction at the bag edge thereby quickly reforming the bag gusset to its original closed position along the plurality of pre-formed vertical scores.
Claim 3
Dependent Claim
28 words
The gusset reformer as defined in claim 1 wherein said inner finger means comprise at least four fingers and said outer finger means comprise at least two fingers.
Claim 4
Dependent Claim
99 words
The gusset reformer as defined in claim 1 wherein each of said inner and outer fingers have formed on the upper portion thereof a cam surface and said means for lowering and manipulating comprises an elongated bar carried by said frame and positioned against said cam surfaces, said elongated bar being fixedly attached to said lower and manipulating means so that movement of said elongated bar downwardly a predetermined distance will cause said elongated bar to react with said cam surfaces thereby causing said inner and outer finger means to simultaneously reverse their positions and reform the bag gusset.
Claim 5
Dependent Claim
176 words
A combination machine for conveying a fully filled bag of objects that have been dropped from a filling station and are to be conveyed to a sewing station whereby the upper edges of the bag are sewn shut, said machine also serving to reform the gussets of the bag prior to and while delivering the bag to the sewing station comprising: a. a stationary frame having a trough shaped upper surface for receiving and for guiding the lower portion of the bag as it drops from the fillIng station; b. a carriage, moveably mounted on said frame, for horizontal movement of the lower portion of the bag along the trough shaped upper surface from the filling station to the sewing station; c. means, carried by said carriage, for manipulating the gussets of the bag to a reformed position suitable for sewing at the sewing station while simultaneously moving the bag to the sewing station; and d. means for holding the reformed gussets in a reformed position prior to sewing after said manipulating means have been removed.
Claim 6
Dependent Claim
176 words
A combination machine for conveying a fully filled bag of objects that have been dropped from a filling station and are to be conveyed to a sewing station whereby the upper edges of the bag are sewn shut, said machine also serving to reform the gussets of the bag prior to and while delivering the bag to the sewing station comprising: a. a stationary frame having a trough shaped upper surface for receiving and for guiding the lower portion of the bag as it drops from the fillIng station; b. a carriage, moveably mounted on said frame, for horizontal movement of the lower portion of the bag along the trough shaped upper surface from the filling station to the sewing station; c. means, carried by said carriage, for manipulating the gussets of the bag to a reformed position suitable for sewing at the sewing station while simultaneously moving the bag to the sewing station; and d. means for holding the reformed gussets in a reformed position prior to sewing after said manipulating means have been removed.
Claim 7
Dependent Claim
29 words
The machine as defined in claim 4 wherein said means for holding the reformed gussets prior to sewing comprises a pair of guide rails fixedly attached to the frame.
Claim 8
Dependent Claim
24 words
The machine as defined in claim 5 wherein said means for moving the bag comprises a pusher member, pivotally mounted on said moving carriage.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-09-03 | 1977-03-05 | 1977-09-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-09-03 | 1981-03-05 | 1981-09-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-09-03 | 1985-03-05 | 1985-09-04 | $7700.00 | Window Closed / Lapsed |