US2860372A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means for jointing thermoplastic synthetic resin pipes, pipe fittings and the like
Assignee: J S & F Folkard Ltd
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Filing: 1957-07-22
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Granted: 1958-11-18
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Expires: 1977-07-22
Abstract
No abstract record available.
Inventors
- 👤 Youthed Sidney Edward
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 17:02
CPC Classifications
B; B29; B29C; B29C65/00; B29C65/02; B29C65/18; B29C65/20; 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; B29C66/80; F; F16; F16L; F16L47/00; F16L47/02; Y; Y10; Y10S; Y10S285/00; Y10S285/919; Y10S285/923; Y10S425/00; Y10S425/802; Y10T; Y10T29/00; Y10T29/45; Y10T29/4506
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
159 words
MEANS FOR USE IN JOINTING PIPES, PIPE FITTINGS AND LIKE MEMBERS MADE OF THERMO-PLASTIC SYNTHETIC RESIN MATERIAL SUCH AS POLYTHENE AND HAVING ONE MEMBER END TO BE JOINTED FORMED AS A SOCKET AND THE OTHER AS A SPIGOT, SAID MEANS INCLUDING AHEAT CONDUCTING TOOL INCORPORATING PLUG AND COLLAR PARTS DIMENSIONED RESPECTIVELY TO FIT INTO SAID SOCKET AND TO FIT OVER SAID SPIGOT AND HAVING THE OUTER SURFACE OF SAID PLUG PART AND THE INNER SURFACE OF SAID COLLAR PART PERIPHERALLY RECESSED TO PERMIT SLIGHT BELLYING OF THE SPIGOT AND SOCKET WALLS DURING A HEATING OPERATION, AND SIZING LIPS WHICH ARE PROVIDED RESPECTIVELY AROUND THE EXTERNAL LEADING END OF SAID PLUG PART AND THE INTERNAL LEADING END OF SAID SOCKET PART, SAID LIPS BEING ADAPTED TO HEAT UP AND SIZE THE RESPECTIVE SOCKET AND SPIGOT SURFACES WHICH ARE CAUSED TO SLIDE THEREOVER ON ENGAGEMENT WITH THE TOOL PARTS AND ALSO THE CLEAN SAID SURFACES ON WITHDRAWAL FROM THE TOOL PARTS.
Claim 2
Dependent Claim
159 words
MEANS FOR USE IN JOINTING PIPES, PIPE FITTINGS AND LIKE MEMBERS MADE OF THERMO-PLASTIC SYNTHETIC RESIN MATERIAL SUCH AS POLYTHENE AND HAVING ONE MEMBER END TO BE JOINTED FORMED AS A SOCKET AND THE OTHER AS A SPIGOT, SAID MEANS INCLUDING AHEAT CONDUCTING TOOL INCORPORATING PLUG AND COLLAR PARTS DIMENSIONED RESPECTIVELY TO FIT INTO SAID SOCKET AND TO FIT OVER SAID SPIGOT AND HAVING THE OUTER SURFACE OF SAID PLUG PART AND THE INNER SURFACE OF SAID COLLAR PART PERIPHERALLY RECESSED TO PERMIT SLIGHT BELLYING OF THE SPIGOT AND SOCKET WALLS DURING A HEATING OPERATION, AND SIZING LIPS WHICH ARE PROVIDED RESPECTIVELY AROUND THE EXTERNAL LEADING END OF SAID PLUG PART AND THE INTERNAL LEADING END OF SAID SOCKET PART, SAID LIPS BEING ADAPTED TO HEAT UP AND SIZE THE RESPECTIVE SOCKET AND SPIGOT SURFACES WHICH ARE CAUSED TO SLIDE THEREOVER ON ENGAGEMENT WITH THE TOOL PARTS AND ALSO THE CLEAN SAID SURFACES ON WITHDRAWAL FROM THE TOOL PARTS.
References Cited (Backward Citations)
US2142150A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1961-11-17 | 1962-05-19 | 1962-11-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1965-11-17 | 1966-05-19 | 1966-11-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1969-11-17 | 1970-05-19 | 1970-11-18 | $7700.00 | Window Closed / Lapsed |