US3114471A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Detachably sealed closure for separating two fluid media, particularly in a nuclear reactor
Assignee: Siemens Schuckertwerke AG
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Filing: 1960-06-17
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Granted: 1963-12-17
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Expires: 1980-06-17
Abstract
No abstract record available.
Inventors
- 👤 Kropfl Hans
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 16:21
CPC Classifications
F; F16; F16J; F16J13/00; F16J13/02; G; G21; G21C; G21C13/00; G21C13/02; G21C13/06; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S285/00; Y10S285/917
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
86 words
A LOOSENABLE PRESSURE-TIGHT SEALING STRUCTURE, COMPRISING AN INNER AND AN OUTER METAL TUBULAR STRUCTURE, MUTUALLY ENGAGEABLE LOCKING MEANS INTERLOCKING SAID STRUCTURES, MEANS FOR HEATING THE OUTER STRUCTURE TO A TEMPERATURE ABOVE THAT OF THE INNER STRUCTURE SO AS TO INCREASE THE FRICTION AT SAID MUTUAL ENGAGING MEANS AND TO THEREBY PRODUCE A PRESSURE-TIGHT LOCKED JOINT BETWEEN SAID STRUCTURES, AND MEANS FOR COOLING THE INNER STRUCTURE RELATIVE TO THE OUTER STRUCTURE SO AS TO REDUCE THE FRICTION AT SAID MUTUAL ENGAGING MEANS FOR LOOSENING THE LOCKED JOINT.
Claim 2
Dependent Claim
86 words
A LOOSENABLE PRESSURE-TIGHT SEALING STRUCTURE, COMPRISING AN INNER AND AN OUTER METAL TUBULAR STRUCTURE, MUTUALLY ENGAGEABLE LOCKING MEANS INTERLOCKING SAID STRUCTURES, MEANS FOR HEATING THE OUTER STRUCTURE TO A TEMPERATURE ABOVE THAT OF THE INNER STRUCTURE SO AS TO INCREASE THE FRICTION AT SAID MUTUAL ENGAGING MEANS AND TO THEREBY PRODUCE A PRESSURE-TIGHT LOCKED JOINT BETWEEN SAID STRUCTURES, AND MEANS FOR COOLING THE INNER STRUCTURE RELATIVE TO THE OUTER STRUCTURE SO AS TO REDUCE THE FRICTION AT SAID MUTUAL ENGAGING MEANS FOR LOOSENING THE LOCKED JOINT.
References Cited (Backward Citations)
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Cited
US1617451A
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FR595332A
Cited
US2424449A
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US2481478A
Cited
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US2940734A
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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) | 1966-12-16 | 1967-06-17 | 1967-12-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1970-12-16 | 1971-06-17 | 1971-12-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1974-12-16 | 1975-06-17 | 1975-12-17 | $7700.00 | Window Closed / Lapsed |