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US3290199A
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Method of and apparatus for coating pipe couplings
Assignee: AMF Inc
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Filing: 1963-05-31
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Granted: 1966-12-06
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Expires: 1983-05-31
Abstract
No abstract record available.
Inventors
- 👤 Willhoite Ernie Dean
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 05:52
CPC Classifications
F; F16; F16L; F16L15/00; F16L15/001; B; B29; B29C; B29C63/00; B29C63/26; B29C63/34; B29C63/345; Y; Y10; Y10T; Y10T156/00; Y10T156/10; Y10T156/1002; Y10T156/1028; Y10T156/1033
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
53 words
IN A METHOD OF PROVIDING A PIPE COUPLING WITH AN INTERNAL COATING COMPRISING THE STEPS OF: INSERTING A SLEEVE OF THERMOPLASTIC MATERIAL IN SAID COUPLING, APPLYING HEAT TO SAID SLEEVE, POSITIONING A ROLLER INSIDE SAID SLEEVE, PRESSING SAID SLEEVE RADIALLY OUTWARD INTO THE INTERNAL THREADS OF SAID COUPLING BY APPLYING SAID ROLLER THEREAGAINST.
Claim 2
Dependent Claim
53 words
IN A METHOD OF PROVIDING A PIPE COUPLING WITH AN INTERNAL COATING COMPRISING THE STEPS OF: INSERTING A SLEEVE OF THERMOPLASTIC MATERIAL IN SAID COUPLING, APPLYING HEAT TO SAID SLEEVE, POSITIONING A ROLLER INSIDE SAID SLEEVE, PRESSING SAID SLEEVE RADIALLY OUTWARD INTO THE INTERNAL THREADS OF SAID COUPLING BY APPLYING SAID ROLLER THEREAGAINST.
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) | 1969-12-05 | 1970-06-06 | 1970-12-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-12-05 | 1974-06-06 | 1974-12-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-12-05 | 1978-06-06 | 1978-12-06 | $7700.00 | Window Closed / Lapsed |