US3032869A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Metal-ceramic seal
Assignee: Honeywell Inc
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Filing: 1960-07-28
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Granted: 1962-05-08
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Expires: 1980-07-28
Abstract
No abstract record available.
Inventors
- 👤 Hochman Robert Francis
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 17:46
CPC Classifications
C; C04; C04B; C04B37/00; C04B37/02; C04B37/023; C04B37/026; C04B35/00; C04B35/622; C04B35/64; C04B35/645; C04B2235/00; C04B2235/65; C04B2235/656; C04B2235/6567; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/121; C04B2237/125; C04B2237/126; C04B2237/127; C04B2237/30; C04B2237/32; C04B2237/34; C04B2237/343; C04B2237/40; C04B2237/403; C04B2237/405; C04B2237/50; C04B2237/62; C04B2237/70; C04B2237/708; C04B2237/72; C04B2237/76; C04B2237/84
Claims Analysis
Total Claims: 1
Claim 1
Independent Claim
119 words
THE METHOD OF FORMING A HERMETIC SEAL BETWEEN A CERAMIC BODY AND A FURTHER BIDY WHICH COMPRISES MIXING POWDERED SILVER AND POWDERED TITANIUM IN AN AMOUNT CONSISTING ESSENTIALLY OF FROM ABOUT 90% UP TO ABOUT 98% SILVER, BALANCE TITANIUM, SINTERING THE MIXTURE AT FROM ABOUT 800*C. UP TO ABOUT 950*C. AT A PRESSURE IN EXCESS OF 20,000 P.S.I. TO FORM A COHESIVE MEMBER, FORMING SAID MEMBER INTO A SHAPED MEMBER OF A CONFIGURATION APPROXIMATING THE SURFACES TO BE JOINED, PLACING SAID SHAPED MEMBER IN A PHYSICAL CONTACT WITH SAID CERAMIC BODY AND SAID FURTHER BODY, AND FUSING IN AN INERT ATMOSPHERE SAID SHAPED MEMBER UNTIL AN ADHERENT, HERMETIC SEAL IS FORMED BETWEEN SAID CERAMIC BODY AND SAID FUTHER BODY.
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) | 1965-05-07 | 1965-11-06 | 1966-05-08 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1969-05-07 | 1969-11-06 | 1970-05-08 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1973-05-07 | 1973-11-06 | 1974-05-08 | $7700.00 | Window Closed / Lapsed |