US3907151A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Insulation retaining plates for pressure vessels
Assignee: Nuclear Power Group Ltd
•
Filing: 1972-12-11
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Granted: 1975-09-23
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Expires: 1992-12-11
Abstract
Abstract A pressure vessel such as for a nuclear reactor which is provided with a thermal insulation lining retained by a plurality of cover plates, the cover plates being connected to the wall of the pressure vessel and adjacent plates being interconnected by a spring member which is designed and arranged so as to provide resilient flexibility in the plane of the cover plate but relative stiffness in the other orthogonal planes.
Inventors
- 👤 John Richard Gilden
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 12:58
CPC Classifications
F; F16; F16L; F16L59/00; F16J; F16J12/00; G; G21; G21C; G21C11/00; G21C11/08; Y; Y02; Y02E; Y02E30/00; Y02E30/30; Y10; Y10S; Y10S220/00; Y10S220/901
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
92 words
A pressure vessel for a nuclear reactor wherein there is provided an inner lining of a thermal insulation medium, the lining being retained on the inner walls of the pressure vessel by a plurality of separate metal cover plates which are held to the wall of the pressure vessel by means of studs, wherein adjacent plates are interconnected by two or more separated spring members being so connected to adjacent cover plates as to provide resilient flexibility only in the plane of the cover plate and stiffness in the other orthogonal planes.
Claim 2
Dependent Claim
92 words
A pressure vessel for a nuclear reactor wherein there is provided an inner lining of a thermal insulation medium, the lining being retained on the inner walls of the pressure vessel by a plurality of separate metal cover plates which are held to the wall of the pressure vessel by means of studs, wherein adjacent plates are interconnected by two or more separated spring members being so connected to adjacent cover plates as to provide resilient flexibility only in the plane of the cover plate and stiffness in the other orthogonal planes.
Claim 3
Dependent Claim
21 words
A pressure vessel as claimed in claim 1, wherein the spring members are connected between adjacent margins of adjacent cover plates.
Claim 4
Dependent Claim
21 words
A pressure vessel as claimed in claim 1, wherein the spring members are connected between adjacent corners of adjacent cover plates.
Claim 5
Dependent Claim
32 words
A pressure vessel as claimed in claim 1, wherein at least some of the spring members consist of a flat metal strip arranged in the form of an open ended U shape.
Claim 6
Dependent Claim
31 words
A pressure vessel as claimed in claim 1, wherein at least some of the spring members consists of a flat metal strip arranged in the form of a closed elongated loop.
Claim 7
Dependent Claim
23 words
A pressure vessel as claimed in claim 5, wherein the loop is in a plane parallel to a plane containing the cover plates.
References Cited (Backward Citations)
US2853871A
Cited
US3636674A
Cited
US3511003A
Cited
US3595728A
Cited
US3581450A
Cited
US3648879A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |