US3796783A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of producing a plastic bond between first and second tubular tube members
Assignee: Carrier Corp
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Filing: 1972-03-02
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Granted: 1974-03-12
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Expires: 1992-03-02
Abstract
Abstract The present invention is directed to the bonding of tube joints exemplified by the securement of bell and spigot tube ends on plate fin or spiral fin coil units employed characterized in part by accurate metering of a predetermined quantity of a thermosetting structural adhesive to particular locations on the mating tube joint members and productive of an extremely high strength bond therebetween resistive to deterioration after long exposure to normal environmental conditions.
Inventors
- 👤 J Greever
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 17:19
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/48; B29C65/52; B29C65/524; B29C65/4805; B29C65/483; B29C66/00; B29C66/01; B29C66/05; B29C66/10; B29C66/11; B29C66/112; B29C66/1122; B29C66/12; B29C66/122; B29C66/1222; B29C66/1224; B29C66/50; B29C66/51; B29C66/52; B29C66/522; B29C66/5221; B29C66/5223; B29C66/5229; B29C66/52296; B29C66/52298; B29C66/53; B29C66/534; B29C66/5344; B29C66/5346; B29C66/53465; F; F16; F16L; F16L13/00; F16L13/10; F16L13/103; F25; F25B; F25B39/00; F25B39/02; F28; F28F; F28F9/00; F28F9/26; B29C65/4835; F28F2275/00; F28F2275/02; F28F2275/025
Claims Analysis
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References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-03-11 | 1977-09-10 | 1978-03-12 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-03-11 | 1981-09-10 | 1982-03-12 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-03-11 | 1985-09-10 | 1986-03-12 | $7700.00 | Window Closed / Lapsed |