US2650183A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heatsealing method
Assignee: Individual
•
Filing: 1951-08-07
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Granted: 1953-08-25
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Expires: 1971-08-07
Abstract
No abstract record available.
Inventors
- 👤 Langer Nicholas
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-22 20:13
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/22; B29C65/221; B29C65/224; B29C65/222; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/40; B29C66/41; B29C66/43; B29C66/70; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/814; B29C66/8145; B29C66/81457; B29C66/818; B29C66/8181; B29C66/81811; B29C66/8182; B29C66/81821; B29C66/8187; B29C66/81871; B29C65/229; B29C65/38; B29C66/812; B29C66/8122
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
104 words
THE METHOD OF HEATSEALING LAYERS OF THERMOPLASTIC FILM WHICH COMPRISES PRESSING ONE FACE OF A STRIP OF SHEET METAL AGAINST SAID LAYERS, GENERATING A PULSE OF SEALING HEAT AT THE OTHER FACE OF SAID STRIP AND IN A REGION NARROWER THAN SAID STRIP TO TRANSFER SUCH PULSE OF HEAT BY CONDUCTION THROUGH THE THICKNESS OF THE STRIP TO SAID LAYERS OF FILM AND TO CAUSE HEATSEALING THEREOF IN SAID REGION, AND WITHDRAWING RESIDUAL HEAT FROM SAID STRIP BY CONDUCTION IN THE PLANE THEREOF THROUGH A DIRECT METALLIC PATH INCLUDING THE LATERAL MARGINAL PORTIONS OF THE STRIP INTO A BODY OF RELATIVELY HIGH HEAT CAPACITY.
Claim 2
Independent Claim
104 words
THE METHOD OF HEATSEALING LAYERS OF THERMOPLASTIC FILM WHICH COMPRISES PRESSING ONE FACE OF A STRIP OF SHEET METAL AGAINST SAID LAYERS, GENERATING A PULSE OF SEALING HEAT AT THE OTHER FACE OF SAID STRIP AND IN A REGION NARROWER THAN SAID STRIP TO TRANSFER SUCH PULSE OF HEAT BY CONDUCTION THROUGH THE THICKNESS OF THE STRIP TO SAID LAYERS OF FILM AND TO CAUSE HEATSEALING THEREOF IN SAID REGION, AND WITHDRAWING RESIDUAL HEAT FROM SAID STRIP BY CONDUCTION IN THE PLANE THEREOF THROUGH A DIRECT METALLIC PATH INCLUDING THE LATERAL MARGINAL PORTIONS OF THE STRIP INTO A BODY OF RELATIVELY HIGH HEAT CAPACITY.
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) | 1956-08-24 | 1957-02-23 | 1957-08-25 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1960-08-24 | 1961-02-23 | 1961-08-25 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1964-08-24 | 1965-02-23 | 1965-08-25 | $7700.00 | Window Closed / Lapsed |