US3091902A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method and device for fabricating bag packages
Assignee: FR Hesser Maschinenfabrik AG
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Filing: 1960-04-14
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Granted: 1963-06-04
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Expires: 1980-04-14
Abstract
No abstract record available.
Inventors
- 👤 Reinhardt Fritz
- 👤 Grafingholt Alfred
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 07:58
CPC Classifications
B; B65; B65B; B65B9/00; B65B9/02; B65B9/023
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
120 words
A PACKING METHOD COMPRISING CONTIUOUSLY AND SUCCESSIVELY MODIFYING THE SHAPE OF AN ELONGATED FLAT WEB BY FOLDING LEGS FROM A CENTRAL PORTION OF THE WEB TO IMPART A U-SHAPE TO THE WEB, FORMING FINS EXTENDING LATERALLY FROM SAID CENTRAL PORTION, AND OUTWARDLY BENDING THE FREE EXTREMITIES OF SAID LEGS; JUXTAPOSING THE LATERAL EXTREMITIES OF A SECOND WEB TO THE OUTWARDLY BENT EXTREMITIES; WELDING SAID FINS TO FIX THE SAME, WELDING SAID EXTREMITIES TO CONNECT SAID WEBS TO FORM A CLOSED TUBE, THE WELDED EXTREMITIES CONSTITUTING ADDITIONAL FINS, ENGAGING AND DISPLACING SAID TUBE THROUGH THE INTERMEDIARY OF SAID FINS, TRANSVERSELY SEALING SAID TUBE AT DETERMINABLE POSITIONS TO FORM SEPARATE LENGTHS, AND CHARGING SAID TUBE SUCCESSIVELY WITH MATERIAL FOR THE RESPECTIVE LENGTHS.
References Cited (Backward Citations)
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US2320326A
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US2533554A
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US2762178A
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US2837883A
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US2969628A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1966-06-03 | 1966-12-03 | 1967-06-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-03 | 1970-12-03 | 1971-06-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-03 | 1974-12-03 | 1975-06-04 | $7700.00 | Window Closed / Lapsed |