US3823772A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electrical insulator assembly
Assignee: Varian Medical Systems Inc
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Filing: 1972-12-08
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Granted: 1974-07-16
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Expires: 1992-12-08
Abstract
Abstract An electrical insulator body is supported from a surrounding structure via the intermediary of a plurality of yieldable support members. The yieldable support members, in a preferred embodiment, are annular truncated conical members bonded to the outside surface of the insulator body and to the inside surface of the surrounding member. In a preferred embodiment the conical support members are made of a copper clad or copper plated alloy of nickel, cobalt and iron to provide increased thermal conductivity between the insulator body and the surrounding structure.
Inventors
- 👤 G Lavering
- 👤 J Needle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 01:44
CPC Classifications
H; H01; H01J; H01J23/00; H01J23/02; H01J23/027; H01J23/033; H01B; H01B17/00; H01B17/26; Y; Y10; Y10S; Y10S165/00; Y10S165/051; Y10S165/052; Y10T; Y10T403/00; Y10T403/21; Y10T403/217
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
33 words
The assembly of claim 1 wherein said surrounding member comprises a metal having a coefficient of thermal expansion substantially closer than that of said first metal portion to that of said ceramic body.
Claim 2
Dependent Claim
28 words
The assembly of claim 2 wherein the metal of said surrounding member comprises substantially the same material as the metal of said second portion of said support member.
Claim 3
Dependent Claim
17 words
The assembly of claim 3 wherein said metal material comprises an alloy of nickel, cobalt and iron.
Claim 4
Dependent Claim
71 words
The assembly of claim 1 wherein said yieldable support member extends generally angularly at other than a right angle from said outside surface of said ceramic body to said inside surface of said surrounding member whereby stress produced in said support member by the difference in thermal expansion between said ceramic body and said surrounding member during heating of said assembly is relieved by deformation of said angularly extending support member.
Claim 5
Dependent Claim
61 words
The assembly of claim 5 further comprising at least one other yieldable support member to form a plurality of substantially similarly configured support members, said support members being adjacently disposed with respect to each other so that said first metal portion of one support member is in thermally conductive surface contact with said first metal portion of an adjacent support member.
Claim 6
Dependent Claim
36 words
The assembly of claim 6 wherein at least one of said support members is annular about said ceramic body and is hole free to provide a gas-tight seal between said ceramic body and said surrounding member.
Claim 7
Dependent Claim
29 words
The assembly of claim 1 wherein said first metal portion of said support member comprises copper and said second metal portion comprises an alloy of nickel, cobalt and iron.
Claim 8
Dependent Claim
17 words
The assembly of claim 8 wherein said copper first portion comprises a cladding on said second portion.
Claim 9
Dependent Claim
19 words
The apparatus of claim 1 wherein heat sink means are affixed to the external surface of said surrounding member.
Claim 10
Dependent Claim
20 words
The assembly of claim 10 wherein said heat sink means comprises a heat-conducting fin extending outwardly from said surrounding member.
Claim 11
Dependent Claim
20 words
The assembly of claim 1 wherein said ceramic body comprises material selected from the group consisting of alumina and beryllia.
References Cited (Backward Citations)
US1181440A
Cited
US1649907A
Cited
GB511356A
Cited
US2200694A
Cited
US2432513A
Cited
US3193003A
Cited
US3626230A
Cited
US3662212A
Cited
US3666980A
Cited
US3746087A
Cited
US3717787A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-07-15 | 1978-01-14 | 1978-07-16 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-07-15 | 1982-01-14 | 1982-07-16 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-07-15 | 1986-01-14 | 1986-07-16 | $7700.00 | Window Closed / Lapsed |