Patent US3093398A successfully refreshed from Google Patents.
US3093398A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Joints between tubes of dissimilar materials
Assignee: United Kingdom Atomic Energy Authority
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Filing: 1958-06-24
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Granted: 1963-06-11
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Expires: 1978-06-24
Abstract
No abstract record available.
Inventors
- 👤 Fawcett Sydney
- 👤 Barnes Hale
- 👤 Rodwell William
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 19:38
CPC Classifications
F; F16; F16L; F16L25/00; F16L25/0072; F16L27/00; F16L27/12; G; G21; G21C; G21C15/00; G21C15/22; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
165 words
A TUBE COUPLING BETWEEN A FIRST TUBE END MEMBER FORMING A FIXED PART OF AN APPARATUS AND A SECOND TUBE END MEMBER FORMING A REMOVAL PART OF SAID APPARATUS AND INSIDE SAID FIRST TUBE END MEMBER, THE TUBE END MEMBERS HAVING DIFFERENT COEFFICIENTS OF THERMAL EXPANSION, AN INTERNAL FLANGE ON SAID FIRST TUBE END MEMBER, AN EXTERNAL FLANGE ON THE SECOND TUBE END MEMBER AND AXIALLY SPACED FROM SAID INTERNAL FLANGE, A SEALING RING BETWEEN SAID FLANGES, A CLAMPING RING ENGAGED WITH AN INTERNAL THREAD ON SAID FIRST TUBE END MEMBER AND HAVING A RADIALLY INWARDLY EXTENDING FACE, AND A NEST OF COAXIAL SLEEVE MEMBERS ALTERNATELY IN COMPRESSION AND TENSION, THE INNERMOST THEREOF BEING IN COMPRESSION AS EXERTED BY THE FACE OF THE CLAMPING RING BEARING THEREON, AND THE OUTERMOST OF SAID COAXIAL SLEEVE MEMBERS BEING IN CONTACT WITH SAID EXTERNAL FLANGE ON THE SECOND TUBE END MEMBER, EACH SLEEVE MEMBER IN TENSION HAVING AN INTERNAL FLANGE AT ONE END BEARING AGAINST THE ADJACENT MEM-
Claim 2
Dependent Claim
165 words
A TUBE COUPLING BETWEEN A FIRST TUBE END MEMBER FORMING A FIXED PART OF AN APPARATUS AND A SECOND TUBE END MEMBER FORMING A REMOVAL PART OF SAID APPARATUS AND INSIDE SAID FIRST TUBE END MEMBER, THE TUBE END MEMBERS HAVING DIFFERENT COEFFICIENTS OF THERMAL EXPANSION, AN INTERNAL FLANGE ON SAID FIRST TUBE END MEMBER, AN EXTERNAL FLANGE ON THE SECOND TUBE END MEMBER AND AXIALLY SPACED FROM SAID INTERNAL FLANGE, A SEALING RING BETWEEN SAID FLANGES, A CLAMPING RING ENGAGED WITH AN INTERNAL THREAD ON SAID FIRST TUBE END MEMBER AND HAVING A RADIALLY INWARDLY EXTENDING FACE, AND A NEST OF COAXIAL SLEEVE MEMBERS ALTERNATELY IN COMPRESSION AND TENSION, THE INNERMOST THEREOF BEING IN COMPRESSION AS EXERTED BY THE FACE OF THE CLAMPING RING BEARING THEREON, AND THE OUTERMOST OF SAID COAXIAL SLEEVE MEMBERS BEING IN CONTACT WITH SAID EXTERNAL FLANGE ON THE SECOND TUBE END MEMBER, EACH SLEEVE MEMBER IN TENSION HAVING AN INTERNAL FLANGE AT ONE END BEARING AGAINST THE ADJACENT MEM-
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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) | 1966-06-10 | 1966-12-10 | 1967-06-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-06-10 | 1970-12-10 | 1971-06-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-06-10 | 1974-12-10 | 1975-06-11 | $7700.00 | Window Closed / Lapsed |