Patent EP0321170B1 successfully refreshed from Google Patents.
US3017314A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for producing plastic bags
Assignee: Norddeutsche Seekabelwerke GmbH
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Filing: 1960-10-14
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Granted: 1962-01-16
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Expires: 1980-10-14
Abstract
No abstract record available.
Inventors
- 👤 Kebekus Alfred
- 👤 Rosenboom Werner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 00:13
CPC Classifications
B; B65; B65B; B65B51/00; B65B51/32; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/74; B29C65/743; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/431; B29C66/4312; B29C66/80; B29C66/81; B29C66/816; B29C66/8161; B29C66/818; B29C66/8181; B29C66/82; B29C66/822; B29C66/8221; B29C66/83; B29C66/832; B29C66/8324; B65B61/00; B65B61/04; B65B61/06; B65B61/10; B29L; B29L2028/00; Y; Y10; Y10S; Y10S264/00; Y10S264/81; Y10T; Y10T156/00; Y10T156/12; Y10T156/1313
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
152 words
IN A WELDING ND SEVERING APPARATUS FOR PRODUCING BAGS FROM A TUBE OF PLASTIC MATERIAL COMPRISING A PAIR OF CLAMPING FIXTURES DISPOSED LATERALLY ADJACENT TO BUT SPACED FROM EACH OTHER, AND A HEATABNLE WELDING BLADE ADAPTED TO BE MOVED WITHIN A PLANE PERPENDICULAR TO SAID TUBE FOR WELDING A TIGHTLY CLOSED INTERMEDIATE PORTION OF SAID TUBE AND FOR SIMULTANWOUSLY SEVERING THE WELDING INTERMEDIATE PORTION INTO TWO PIECES, EACH OF WHICH IS HELD BY A CLAMPING FIXURE, THE IMPROVEMENT COMPRISING A METALLIC COOLING ELEMENT, MEANS FOR MOVING SAID COOLING ELEMENT WITHIN THE SAME PLANE AS SAID WELDING BLADE, AND MEANS FOR CONTROLLING THE MOVEMENT OF SAID COOLING ELEMENT IN A TIMED RELATION TO THE MOVEMENT OF SAID WELDING BLADE SO THAT SAID EELEMENT WILL BE MOVED INTO A FINAL POSITION OF ENGAGEMENT WITH THE SURFACES ALONG WHICH SAID TWO PIECES WERE SEVERED AFTER SAID WELDING BLADE HAS BEEN MOVER AWAY FROM SAID SURFACES.
Claim 2
Dependent Claim
152 words
IN A WELDING ND SEVERING APPARATUS FOR PRODUCING BAGS FROM A TUBE OF PLASTIC MATERIAL COMPRISING A PAIR OF CLAMPING FIXTURES DISPOSED LATERALLY ADJACENT TO BUT SPACED FROM EACH OTHER, AND A HEATABNLE WELDING BLADE ADAPTED TO BE MOVED WITHIN A PLANE PERPENDICULAR TO SAID TUBE FOR WELDING A TIGHTLY CLOSED INTERMEDIATE PORTION OF SAID TUBE AND FOR SIMULTANWOUSLY SEVERING THE WELDING INTERMEDIATE PORTION INTO TWO PIECES, EACH OF WHICH IS HELD BY A CLAMPING FIXURE, THE IMPROVEMENT COMPRISING A METALLIC COOLING ELEMENT, MEANS FOR MOVING SAID COOLING ELEMENT WITHIN THE SAME PLANE AS SAID WELDING BLADE, AND MEANS FOR CONTROLLING THE MOVEMENT OF SAID COOLING ELEMENT IN A TIMED RELATION TO THE MOVEMENT OF SAID WELDING BLADE SO THAT SAID EELEMENT WILL BE MOVED INTO A FINAL POSITION OF ENGAGEMENT WITH THE SURFACES ALONG WHICH SAID TWO PIECES WERE SEVERED AFTER SAID WELDING BLADE HAS BEEN MOVER AWAY FROM SAID SURFACES.
References Cited (Backward Citations)
US2676642A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1965-01-15 | 1965-07-17 | 1966-01-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-01-15 | 1969-07-17 | 1970-01-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-01-15 | 1973-07-17 | 1974-01-16 | $7700.00 | Window Closed / Lapsed |