US3353327A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gusset apparatus for bag form and fill machine and method
Assignee: Woodman Co Inc
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Filing: 1962-11-19
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Granted: 1967-11-21
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Expires: 1982-11-19
Abstract
No abstract record available.
Inventors
- 👤 Duncan B Cutler
- 👤 William L Warner
- 👤 William A Hadden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:55
CPC Classifications
B; B65; B65B; B65B9/00; B65B9/10; B65B9/20; B65B9/2042; B65B9/213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
155 words
IN A METHOD FOR FORMING GUSSETS ON BAGS CONTINUOUSLY MADE ON A FORM AND FILL MACHINE WHICH INCLUDES HEAT SEALING DIES FOR SEALING THE TOPS AND BOTTOMS OF THE BAGS, COMPRISING: (A) FORMING THE BAG FROM A CONTINUOUSLY SUPPLED TUBE OF MATERIAL, (B) SEALING THE BAG BY A PAIR OF HEAT SEALING DIES MOVING FROM OPPOSITE SIDES OF THE TUBE, (C) PRIOR TO CLOSING SAID HEAT SEALING DIES, FORMING TUCKED PORTIONS ON OPPOSITE SIDES OF SAID TUBE FROM THE OPEN SPACE BETWEEN SAID DIES BY EXTENDING FINGER MEMBERS INTO THE OPPOSITE SIDES OF SAID TUBE AT THE OPPOSITE OPEN ENDS OF SAID SEALING DIES, (D) AND TUCKING SAID BAG ON SAID OPPOSED SIDES FOR A DISTANCE ABOVE SAID SEALING DIES SUFFICIENT TO EXTEND FROM THE TOP OF THE BOTTOM BAG BEING SEALED AND SEVERED AND BELOW SAID SEALING DIES TO THE BOTTOM OF THE TOP BAG YET TO BE SEVERED FROM THE TUBE AND SEALED.
Claim 2
Dependent Claim
155 words
IN A METHOD FOR FORMING GUSSETS ON BAGS CONTINUOUSLY MADE ON A FORM AND FILL MACHINE WHICH INCLUDES HEAT SEALING DIES FOR SEALING THE TOPS AND BOTTOMS OF THE BAGS, COMPRISING: (A) FORMING THE BAG FROM A CONTINUOUSLY SUPPLED TUBE OF MATERIAL, (B) SEALING THE BAG BY A PAIR OF HEAT SEALING DIES MOVING FROM OPPOSITE SIDES OF THE TUBE, (C) PRIOR TO CLOSING SAID HEAT SEALING DIES, FORMING TUCKED PORTIONS ON OPPOSITE SIDES OF SAID TUBE FROM THE OPEN SPACE BETWEEN SAID DIES BY EXTENDING FINGER MEMBERS INTO THE OPPOSITE SIDES OF SAID TUBE AT THE OPPOSITE OPEN ENDS OF SAID SEALING DIES, (D) AND TUCKING SAID BAG ON SAID OPPOSED SIDES FOR A DISTANCE ABOVE SAID SEALING DIES SUFFICIENT TO EXTEND FROM THE TOP OF THE BOTTOM BAG BEING SEALED AND SEVERED AND BELOW SAID SEALING DIES TO THE BOTTOM OF THE TOP BAG YET TO BE SEVERED FROM THE TUBE AND SEALED.
References Cited (Backward Citations)
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US2605597A
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US2917879A
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US3201913A
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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) | 1970-11-20 | 1971-05-22 | 1971-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-20 | 1975-05-22 | 1975-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-20 | 1979-05-22 | 1979-11-21 | $7700.00 | Window Closed / Lapsed |