US3330716A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Radiant film sealing and cutting apparatus
Assignee: Weldotron of Delaware Inc
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Filing: 1963-09-09
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Granted: 1967-07-11
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Expires: 1983-09-09
Abstract
No abstract record available.
Inventors
- 👤 Zelnick Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 22:45
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/10; B29C65/106; B29C65/14; B29C65/1429; B29C65/1448; B29C65/18; B29C65/22; B29C65/221; B29C65/222; B29C65/223; B29C65/224; B29C65/226; B29C65/228; B29C65/229; B29C65/74; B29C65/743; B29C65/7439; B29C65/747; B29C65/7471; B29C65/7473; B29C66/00; B29C66/01; B29C66/02; B29C66/024; B29C66/0242; B29C66/03; B29C66/034; B29C66/0342; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/13; B29C66/137; B29C66/20; B29C66/21; B29C66/348; B29C66/40; B29C66/41; B29C66/43; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/81431; B29C66/816; B29C66/8161; B29C66/818; B29C66/8181; B29C66/81815; B29C66/8187; B29C66/81871; B29C66/82; B29C66/822; B29C66/8226; B29C66/82265; B29C66/83; B29C66/832; B29C66/8322; B29C66/83221; B29C66/84; B29C66/851; B29C66/8511; B29C35/00; B29C35/16; B29C2035/1658; B29C66/81411; B29C66/81415; B29C66/81419; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1313
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
179 words
APPARATUS FOR HEAT SEALING AND CUTTING AN ASSEMBLY OF SUPERIMPOSED PLIES OF THERMOPLASTIC FILM, COMPRISING MEANS FOR PRESSING SAID FILMS OF THE ASSEMBLY AGAINST EACH OTHER ADJACENT THE SEALING LINE WITH PORTION OF SAID ASSEMBLY EXTENDING LATERALLY OUTWARDLY OF SAID PRESSING MEANS, AND MEANS FOR APPLYING HEAT DIRECTLY AND SIMULTANEOUSLY TO EACH OF THE OPPOSITE SIDES OF SAID LATERALLY EXTENDING PORTIONS OF SAID ASSEMBLY AND THEREBY FUSING SAID SUPERIMPOSED FILMS TO EACH OTHER AND FORMING A SEALED EDGE OF THE SUPERIMPOSED PLIES ALONG SAID SEALING LINE, SAID HEAT APPLYING MEANS COMPRISING MEANS FOR HEATING ONE SIDE OF SAID LATERALLY EXTENDING PORTION OF SAID ASSEMBLY DIRECTLY AND ADDITIONAL MEANS FOR HEATING DIRECTLY THE OPPOSITE SIDE OF SAID LATERALLY EXTENDING PORTION OF SAID ASSEMBLY, EACH OF SAID HEAT APPLYING MEANS COMPRISING AN ELECTRIC RADIANT HEATING ELEMENT COMPRISING A BAND OF HIGH RESISTANCE MATERIAL, SAID BAND BEING OF GREATER WIDTH THAN THICKNESS AND DISPOSED SO THAT IT LIES WIDTHWISE IN A PLANE PARALLEL TO AND OUT OF CONTACT WITH SAID LATERALLY EXTENDING PORTIONS OF THE ASSEMBLY DURING THE HEATING OF SAID PORTIONS.
Claim 2
Dependent Claim
179 words
APPARATUS FOR HEAT SEALING AND CUTTING AN ASSEMBLY OF SUPERIMPOSED PLIES OF THERMOPLASTIC FILM, COMPRISING MEANS FOR PRESSING SAID FILMS OF THE ASSEMBLY AGAINST EACH OTHER ADJACENT THE SEALING LINE WITH PORTION OF SAID ASSEMBLY EXTENDING LATERALLY OUTWARDLY OF SAID PRESSING MEANS, AND MEANS FOR APPLYING HEAT DIRECTLY AND SIMULTANEOUSLY TO EACH OF THE OPPOSITE SIDES OF SAID LATERALLY EXTENDING PORTIONS OF SAID ASSEMBLY AND THEREBY FUSING SAID SUPERIMPOSED FILMS TO EACH OTHER AND FORMING A SEALED EDGE OF THE SUPERIMPOSED PLIES ALONG SAID SEALING LINE, SAID HEAT APPLYING MEANS COMPRISING MEANS FOR HEATING ONE SIDE OF SAID LATERALLY EXTENDING PORTION OF SAID ASSEMBLY DIRECTLY AND ADDITIONAL MEANS FOR HEATING DIRECTLY THE OPPOSITE SIDE OF SAID LATERALLY EXTENDING PORTION OF SAID ASSEMBLY, EACH OF SAID HEAT APPLYING MEANS COMPRISING AN ELECTRIC RADIANT HEATING ELEMENT COMPRISING A BAND OF HIGH RESISTANCE MATERIAL, SAID BAND BEING OF GREATER WIDTH THAN THICKNESS AND DISPOSED SO THAT IT LIES WIDTHWISE IN A PLANE PARALLEL TO AND OUT OF CONTACT WITH SAID LATERALLY EXTENDING PORTIONS OF THE ASSEMBLY DURING THE HEATING OF SAID PORTIONS.
References Cited (Backward Citations)
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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) | 1970-07-10 | 1971-01-09 | 1971-07-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-07-10 | 1975-01-09 | 1975-07-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-07-10 | 1979-01-09 | 1979-07-11 | $7700.00 | Window Closed / Lapsed |