US3355337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Continuous radiant heat sealing and cutting apparatus
Assignee: Weldotron of Delaware Inc
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Filing: 1965-09-01
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Granted: 1967-11-28
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Expires: 1985-09-01
Abstract
No abstract record available.
Inventors
- 👤 Zelnick Seymour
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 17:30
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: 1
Claim 1
Independent Claim
74 words
A METHOD OF PROGRESSIVELY SEALING TOGETHER TWO SUPERPOSED WEBS OF HEAT-SHRINKABLE THERMOPLASTIC MATERIAL, COMPRISING PROGRESSIVELY CLAMPING TOGETHER THE MARGINAL SUBPORTIONS OF TWO SUPERPOSED PORTIONS OF THE WEBS BETWEEN TWO SPACED APART SETS OF CLAMPING MEANS AND PROGRESSIVELY CONVEYING THE PERIPHERALLY CLAMPED TOGETHER PORTIONS INITIALLY ADJACENT A RELATIVELY LOW TEMPERATURE RADIANT HEAT SOURCE TO PROGRESSIVELY MELT A GAP INTO THE SHRUNK PORTIONS AND TO JOIN TOGETHER THE SUPERPOSED EDGES OF THE WEBS BOUNDING THE GAP.
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) | 1970-11-27 | 1971-05-29 | 1971-11-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-11-27 | 1975-05-29 | 1975-11-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-11-27 | 1979-05-29 | 1979-11-28 | $7700.00 | Window Closed / Lapsed |