US3243330A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous heat sealing and cutting apparatus
Assignee: Weldotron of Delaware Inc
•
Filing: 1963-12-05
•
Granted: 1966-03-29
•
Expires: 1983-12-05
Abstract
No abstract record available.
Inventors
- 👤 Zelnick Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 05:55
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/13; B29C66/137; B26; B26F; B26F3/00; B26F3/06; B29C65/00; B29C65/02; B29C65/14; B29C65/1429; B29C65/1445; B29C65/1464; B29C65/1467; B29C65/18; B29C65/22; B29C65/221; B29C65/224; B29C65/229; B29C65/74; B29C65/743; B29C65/7439; B29C65/747; B29C65/7473; B29C65/78; B29C65/7858; B29C65/7861; B29C65/787; B29C65/7873; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/737; B29C66/7371; B29C66/73711; B29C66/73715; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/814; B29C66/8141; B29C66/81427; B29C66/816; B29C66/8161; B29C66/818; B29C66/8187; B29C66/81871; B29C66/83; B29C66/834; B29C66/8341; B29C66/83421; B29C66/83423; B29C66/836; B29C66/432; B29C66/84; B29C66/843; B29C66/8432; B29C66/90; B29C66/93; B29C66/934; B29C66/93451; B29K; B29K2995/00; B29K2995/0037; B29K2995/0049; B29K2995/005; B29L; B29L2023/00; B29L2023/005; B29L2031/00; B29L2031/712; B29L2031/7128; Y; Y10; Y10T; Y10T156/00; Y10T156/12; Y10T156/1313
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
93 words
APPARATUS FOR HEAT SEALING AND CUTTING SUPERPOSED PLIES OF THERMOPLASTIC FILM, COMPRISING: MEANS FOR PRESSING THE PLIES AGAINST EACH OTHER ADJACENT A HEAT SEALING LINE, AND MEANS FOR RADIATING HEAT TO THE PLIES ALONG SAID LINE TO FUSE THE PLIES TO EACH OTHER ALONG SAID LINE AND TO FORM AN EDGE OF THE SUPERPOSED PLIES ALONG SAID LINE, SAID PRESSING MEANS COMPRISING TWO, LATERALLY SPACED APART, SETS OF COMPANION CONVEYOR BANDS EXTENDING LONGITUDINALLY ADJACENT OPPOSITE SIDES OF SAID SEALING LINE, SAID HEAT RADIATING MEANS BEING DISPOSED BETWEEN SAID TWO SETS OF CONVEYOR BANDS.
Claim 2
Dependent Claim
93 words
APPARATUS FOR HEAT SEALING AND CUTTING SUPERPOSED PLIES OF THERMOPLASTIC FILM, COMPRISING: MEANS FOR PRESSING THE PLIES AGAINST EACH OTHER ADJACENT A HEAT SEALING LINE, AND MEANS FOR RADIATING HEAT TO THE PLIES ALONG SAID LINE TO FUSE THE PLIES TO EACH OTHER ALONG SAID LINE AND TO FORM AN EDGE OF THE SUPERPOSED PLIES ALONG SAID LINE, SAID PRESSING MEANS COMPRISING TWO, LATERALLY SPACED APART, SETS OF COMPANION CONVEYOR BANDS EXTENDING LONGITUDINALLY ADJACENT OPPOSITE SIDES OF SAID SEALING LINE, SAID HEAT RADIATING MEANS BEING DISPOSED BETWEEN SAID TWO SETS OF CONVEYOR BANDS.
References Cited (Backward Citations)
US2358455A
Cited
US2606850A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-03-28 | 1969-09-27 | 1970-03-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-03-28 | 1973-09-27 | 1974-03-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-03-28 | 1977-09-27 | 1978-03-29 | $7700.00 | Window Closed / Lapsed |