Patent US3284118A successfully refreshed from Google Patents.
US3284118A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Ceramic-to-metal seals
Assignee: RCA Corp
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Filing: 1964-08-27
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Granted: 1966-11-08
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Expires: 1984-08-27
Abstract
No abstract record available.
Inventors
- 👤 Jr Sebastian W Kessler
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 19:06
CPC Classifications
F; F16; F16J; F16J15/00; F16J15/02; C; C04; C04B; C04B35/00; C04B35/622; C04B35/64; C04B35/645; C04B37/00; C04B37/02; C04B37/023; C04B37/026; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/122; C04B2237/123; C04B2237/124; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/40; C04B2237/403; C04B2237/405; C04B2237/50; C04B2237/70; C04B2237/706; C04B2237/72; C04B2237/76; C04B2237/765; C04B2237/80; Y; Y10; Y10T; Y10T403/00; Y10T403/21; Y10T403/213
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
147 words
A SEALED STRUCTURE COMPRISING: (A) A COMPOSITE SHEET METAL MEMBER HAVING AT LEAST THREE LAYERS OF METAL BONDED TOGETHER AND TERMINATING IN A COMMON EDGE, (B) A CERAMIC MEMBER HAVING A FLAT SURFACE, (C) SAID EDGE BEING BRAZED TO SAID FLAT SURFACE, (D) THE OUTER ONES OF SAID LAYERS HAVING SUBSTANTIALLY MUTUALLY SIMILAR THERMAL EXPANSION RESPONSES LATERALLY OF SAID SHEET METAL MEMBER THROUGHOUT A GIVEN TEMPERATURE RANGE, AN INTERMEDIATE ONE OF SAID LAYERS HAVING A DIFFERENT THERMAL EXPANSION RESPONSE LATERALLY OF SAID SHEET METAL MEMBER THROUGHOUT SAID TEMPERATURE RANGE THAN SAID SIMILAR RESPONSES, THE RESULTANT OF SAID SIMILAR AND SAID DIFFERENT THERMAL EXPANSION RESPONSES LATERALLY OF SAID SHEET METAL MEMBER BEING SUBSTANTIALLY EQUAL TO THE THERMAL EXPANSION RESPONSE OF SAID CERAMIC MEMBER AT SAID TEMPERATURE, (E) WHEREBY THE BRAZED RELATION OF SAID SHEET METAL MEMBER AND SAID CERAMIC MEMBER IS PRESERVED FROM RUPTURE THROUGHOUT SAID TEMPERATURE RANGE.
Claim 2
Dependent Claim
147 words
A SEALED STRUCTURE COMPRISING: (A) A COMPOSITE SHEET METAL MEMBER HAVING AT LEAST THREE LAYERS OF METAL BONDED TOGETHER AND TERMINATING IN A COMMON EDGE, (B) A CERAMIC MEMBER HAVING A FLAT SURFACE, (C) SAID EDGE BEING BRAZED TO SAID FLAT SURFACE, (D) THE OUTER ONES OF SAID LAYERS HAVING SUBSTANTIALLY MUTUALLY SIMILAR THERMAL EXPANSION RESPONSES LATERALLY OF SAID SHEET METAL MEMBER THROUGHOUT A GIVEN TEMPERATURE RANGE, AN INTERMEDIATE ONE OF SAID LAYERS HAVING A DIFFERENT THERMAL EXPANSION RESPONSE LATERALLY OF SAID SHEET METAL MEMBER THROUGHOUT SAID TEMPERATURE RANGE THAN SAID SIMILAR RESPONSES, THE RESULTANT OF SAID SIMILAR AND SAID DIFFERENT THERMAL EXPANSION RESPONSES LATERALLY OF SAID SHEET METAL MEMBER BEING SUBSTANTIALLY EQUAL TO THE THERMAL EXPANSION RESPONSE OF SAID CERAMIC MEMBER AT SAID TEMPERATURE, (E) WHEREBY THE BRAZED RELATION OF SAID SHEET METAL MEMBER AND SAID CERAMIC MEMBER IS PRESERVED FROM RUPTURE THROUGHOUT SAID TEMPERATURE RANGE.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1969-11-07 | 1970-05-09 | 1970-11-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1973-11-07 | 1974-05-09 | 1974-11-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1977-11-07 | 1978-05-09 | 1978-11-08 | $7700.00 | Window Closed / Lapsed |