Patent US3220156A successfully refreshed from Google Patents.
US3220156A
Expired / Lapsed
US
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Bagging machine
Assignee: Package Machinery Co
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Filing: 1962-12-11
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Granted: 1965-11-30
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Expires: 1982-12-11
Abstract
No abstract record available.
Inventors
- 👤 John A Hart
- 👤 Richard M Anderson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 23:05
CPC Classifications
B; B65; B65B; B65B41/00; B65B41/12; B65B41/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
85 words
IN COMBINATION WITH A BAGGING MACHINE OF THE TYPE WHEREIN ARTICLES ARE INTRODUCED INTO A CONTINUOUSLY FORMED TUBE OF WRAPPER MATERIAL AND HAVING A PAIR OF CLAMPS FOR GRIPPING THE WRAPPER TUBE AND FORMING A TRANSVERSE SEAM THEREIN, YIELDABLE MEANS FOR CLOSING THE CLAMPS TOWARD EACH OTHER WITH A RELATIVELY LOW FORCE AND MEANS RESPONSIVE TO THE DRAW BARS BEING MOVED TO A CONTIGUOUS RELATION FOR APPLYING A MUCH GREATER CLOSING FORCE TO THE CLAMPS TO COMPLETE THEIR CLOSING MOVEMENT IN GRIPPING THE WRAPPER TUBE.
Claim 2
Dependent Claim
85 words
IN COMBINATION WITH A BAGGING MACHINE OF THE TYPE WHEREIN ARTICLES ARE INTRODUCED INTO A CONTINUOUSLY FORMED TUBE OF WRAPPER MATERIAL AND HAVING A PAIR OF CLAMPS FOR GRIPPING THE WRAPPER TUBE AND FORMING A TRANSVERSE SEAM THEREIN, YIELDABLE MEANS FOR CLOSING THE CLAMPS TOWARD EACH OTHER WITH A RELATIVELY LOW FORCE AND MEANS RESPONSIVE TO THE DRAW BARS BEING MOVED TO A CONTIGUOUS RELATION FOR APPLYING A MUCH GREATER CLOSING FORCE TO THE CLAMPS TO COMPLETE THEIR CLOSING MOVEMENT IN GRIPPING THE WRAPPER TUBE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |