Patent US2686958A successfully refreshed from Google Patents.
US2686958A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating and bonding
Assignee: Westinghouse Electric Corp
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Filing: 1950-11-14
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Granted: 1954-08-24
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Expires: 1970-11-14
Abstract
No abstract record available.
Inventors
- 👤 Eber Mortimer
- 👤 William J Knochel
- 👤 Hayden E Gallagher
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 20:43
CPC Classifications
F; F27; F27D; F27D11/00; H; H01; H01J; H01J7/00; H01J7/14; H01J7/18; Y; Y10; Y10S; Y10S428/00; Y10S428/922; Y10S428/9335; Y10S428/939
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
188 words
A METHOD FOR MAINTAINING A PURE WETTING AGENT ON A CERAMIC BODY METALLIZING SAID BODY COMPRISING: PAINTING THE SURFACE AREA TO BE METALLIZED OF SAID BODY WITH A WETTING AGENT, NAMELY A PLURALITY OF HYDRIDES OF THE METALS OF THE GROUP CONSISTING OF ZIRCONIUM, TITANIUM, TANTALUM, COLUMBIUM, VANADIUM, AND THORIUM; PAINTING THE INNER SURFACE OF A METAL WORK CHAMBER WITH A GETTERING AGENT, NAMELY A PLURALITY OF HYDRIDES OF THE METALS OF THE ABOVE MENTIONED GROUP; ASSEMBLING SAID BODY WITH A SOLDER WITHIN SAID CHAMBER IN AN INERT PROTECTIVE ENVIRONMENT; HEATING SAID CHAMBER TO DISSOCIATE THE METAL HYDRIDES ON SAID SURFACE OF SAID CHAMBER INTO LIBERATED HYDROGEN AND ACTIVE GETTERING METALS,; FURTHER HEATING OF SAID CHAMBER AND SAID BODY, IN TURN, BY INWARD RADIATION FROM SAID CHAMBER TO FURTHER ACTIVATE SAID GETTERING METALS AND TO DISSOCIATE THE METAL HYDRIDES ON SAID BODY INTO LIBERATED HYDROGEN AND ACTIVE WETTING METALS; STILL FURTHER HEATING SAID CHAMBER AND SAID BODY AND SOLDER TO STILL FURTHER ACTIVATE SAID GETTERING METALS AND TO MELT THE SOLDER, THEREBY FORMING AN ALLOY OF SAID SOLDER AND THE UNCONTAMINATED WETTING METALS AND METALLIZING SAID CERAMIC THEREWITH.
Claim 2
Independent Claim
188 words
A METHOD FOR MAINTAINING A PURE WETTING AGENT ON A CERAMIC BODY METALLIZING SAID BODY COMPRISING: PAINTING THE SURFACE AREA TO BE METALLIZED OF SAID BODY WITH A WETTING AGENT, NAMELY A PLURALITY OF HYDRIDES OF THE METALS OF THE GROUP CONSISTING OF ZIRCONIUM, TITANIUM, TANTALUM, COLUMBIUM, VANADIUM, AND THORIUM; PAINTING THE INNER SURFACE OF A METAL WORK CHAMBER WITH A GETTERING AGENT, NAMELY A PLURALITY OF HYDRIDES OF THE METALS OF THE ABOVE MENTIONED GROUP; ASSEMBLING SAID BODY WITH A SOLDER WITHIN SAID CHAMBER IN AN INERT PROTECTIVE ENVIRONMENT; HEATING SAID CHAMBER TO DISSOCIATE THE METAL HYDRIDES ON SAID SURFACE OF SAID CHAMBER INTO LIBERATED HYDROGEN AND ACTIVE GETTERING METALS,; FURTHER HEATING OF SAID CHAMBER AND SAID BODY, IN TURN, BY INWARD RADIATION FROM SAID CHAMBER TO FURTHER ACTIVATE SAID GETTERING METALS AND TO DISSOCIATE THE METAL HYDRIDES ON SAID BODY INTO LIBERATED HYDROGEN AND ACTIVE WETTING METALS; STILL FURTHER HEATING SAID CHAMBER AND SAID BODY AND SOLDER TO STILL FURTHER ACTIVATE SAID GETTERING METALS AND TO MELT THE SOLDER, THEREBY FORMING AN ALLOY OF SAID SOLDER AND THE UNCONTAMINATED WETTING METALS AND METALLIZING SAID CERAMIC THEREWITH.
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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) | 1957-08-23 | 1958-02-22 | 1958-08-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1961-08-23 | 1962-02-22 | 1962-08-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1965-08-23 | 1966-02-22 | 1966-08-24 | $7700.00 | Window Closed / Lapsed |