Patent CA1112803A successfully refreshed from Google Patents.
US2698273A
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US
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Method for joining thermoplastic sheet material
Assignee: Uniroyal Inc
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Filing: 1949-10-19
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Granted: 1954-12-28
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Expires: 1969-10-19
Abstract
No abstract record available.
Inventors
- 👤 Samuel S Miner
- 👤 Edward H Clark
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 15:08
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/01; B29C66/348; B29C65/00; B29C65/02; B29C65/18; B29C65/24; B29C65/30; B29C65/305; B29C66/03; B29C66/034; B29C66/0342; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/20; B29C66/24; B29C66/242; B29C66/2422; B29C66/24221; B29C66/342; B29C66/40; B29C66/41; B29C66/43; B29C66/50; B29C66/51; B29C66/53; B29C66/534; B29C66/5344; B29C66/54; B29C66/542; B29C66/63; B29C66/634; B29C66/70; B29C66/71; B29C66/73; B29C66/739; B29C66/7392; B29C66/73921; B29C66/80; B29C66/81; B29C66/814; B29C66/8145; B29C66/81455; B29C66/818; B29C66/8181; B29C66/81811; B29C66/8182; B29C66/81821; B29C66/82; B29C66/822; B29C66/8221; B29C66/8223; B29C66/83; B29C66/832; B29C66/8324; B29C66/90; B29C66/91; B29C66/914; B29C66/9141; B29C66/91411; B29C66/91441; B29C66/91443; B29C66/91445; B29C66/9161; B29C66/919; B29C66/9192; B29C66/91921; B29C66/91931; B29C66/91933; B29C66/91935; B29C66/92; B29C66/924; B29C66/9241; B29C35/00; B29C35/16; B29C2035/1616; B29C66/816; B29C66/8167; B29C66/91421; B29C66/91423; B29C66/929; B29L; B29L2031/00; B29L2031/712; B29L2031/7154; B29L2031/7158
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
148 words
A PROCESS OF JOINING THERMOPLASTIC SHEET MATERIAL HAVING A SHARP MELTING POINT WHICH COMPRISES LAPPING TWO SURFACES OF SAID MATERIAL, HEATING THE MATERIAL IN THE AREA OF THE JOINT TO A TEMPERATURE SUBSTANTIALLY ABOVE ITS SOFTENING POINT AND THEREBY CAUSING IT TO FUSE AND FLOW TOGETHER TO FROM AN INTEGRAL JOINT, SIMULTANEOUSLY MAINTAINING THE MATERIAL IMMEDIATELY ADJACENT TO THE AREA OF THE JOINT ON BOTH SIDES THEREOF AT A TEMPERATURE SUBSTANTIALLY BELOW ITS SOFTENING POINT BY COOLING, APPLYING SUBSTANTIALLY UNIFORM FLUID PRESSURE TO THE MATERIAL AT THE JOINT BEFORE IT IS MOLTEN, CONFINING THE MATERIAL AT THE JOINT AND ALONG THE COOLED ADJACENT AREAS UNDER UNIFORM FLUID PRESSURE WHILE THE MATERIAL AT THE JOINT IS MOLTEN AND THEREAFTER UNIT IT HAS COOLED TO A TEMPERATURE SUBSTANTIALLY BELOW ITS SOFTENING POINT, AND SUBSEQUENTLY DISCONTINUING SAID HEATING SAID COOLING THE RESULTING JOINT TO A TEMPERATURE SUBSTANTIALLY BELOW ITS SOFTENING POINT.
Claim 2
Dependent Claim
148 words
A PROCESS OF JOINING THERMOPLASTIC SHEET MATERIAL HAVING A SHARP MELTING POINT WHICH COMPRISES LAPPING TWO SURFACES OF SAID MATERIAL, HEATING THE MATERIAL IN THE AREA OF THE JOINT TO A TEMPERATURE SUBSTANTIALLY ABOVE ITS SOFTENING POINT AND THEREBY CAUSING IT TO FUSE AND FLOW TOGETHER TO FROM AN INTEGRAL JOINT, SIMULTANEOUSLY MAINTAINING THE MATERIAL IMMEDIATELY ADJACENT TO THE AREA OF THE JOINT ON BOTH SIDES THEREOF AT A TEMPERATURE SUBSTANTIALLY BELOW ITS SOFTENING POINT BY COOLING, APPLYING SUBSTANTIALLY UNIFORM FLUID PRESSURE TO THE MATERIAL AT THE JOINT BEFORE IT IS MOLTEN, CONFINING THE MATERIAL AT THE JOINT AND ALONG THE COOLED ADJACENT AREAS UNDER UNIFORM FLUID PRESSURE WHILE THE MATERIAL AT THE JOINT IS MOLTEN AND THEREAFTER UNIT IT HAS COOLED TO A TEMPERATURE SUBSTANTIALLY BELOW ITS SOFTENING POINT, AND SUBSEQUENTLY DISCONTINUING SAID HEATING SAID COOLING THE RESULTING JOINT TO A TEMPERATURE SUBSTANTIALLY BELOW ITS SOFTENING POINT.
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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) | 1957-12-27 | 1958-06-28 | 1958-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-12-27 | 1962-06-28 | 1962-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-12-27 | 1966-06-28 | 1966-12-28 | $7700.00 | Window Closed / Lapsed |