US3762995A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Sealed container having a zirconium tin alloy getter
Assignee: Westinghouse Electric Corp
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Filing: 1968-04-30
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Granted: 1973-10-02
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Expires: 1988-04-30
Abstract
Abstract A getter for gases contained within a hermetically sealed container including gases dissolved in the container walls to be maintained substantially free of such gases and disposed within the container a body heatable to an elevated temperature, the getter consisting essentially of a zirconium-base alloy containing from about 10 to about 30 weight per cent tin.
Inventors
- 👤 E Gulbransen
- 👤 S Jansson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 18:27
CPC Classifications
G; G21; G21C; G21C3/00; G21C3/02; G21C3/04; G21C3/16; G21C3/17; H; H01; H01J; H01J7/00; H01J7/14; H01J7/18; H01J7/183; H01K; H01K1/00; H01K1/52; H01K1/54; H01K1/56; Y; Y02; Y02E; Y02E30/00; Y02E30/30
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
23 words
The container of claim 1 in which the body is composed of about 24.5 weight per cent tin and the balance is zirconium.
Claim 2
Dependent Claim
39 words
The container of claim 1 in which a portion of the body is so disposed and constructed as to be readily heated by the heating means to a temperature higher than the temperature of another portion of the body.
Claim 3
Dependent Claim
29 words
The container of claim 3 in which the body is operative over a temperature gradient ranging from about 300* to about 700*C to react with and remove residual gases.
Claim 4
Dependent Claim
65 words
In a sealed container, a getter material for reacting with and adsorbing traces of residual gases within the container, the getter material comprising a body of zirconium base alloy consisting essentially of from about 10 to 30 weight per cent tin and balance being zirconium except for incidental impurities, and means for heating the body to a temperature ranging from about 300* to about 700*C.
Claim 5
Dependent Claim
22 words
The container of claim 5 wherein the body is composed of about 24.5 weight per cent tin and the balance is zirconium.
References Cited (Backward Citations)
No citation records indexed.
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1976-10-01 | 1977-04-02 | 1977-10-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-10-01 | 1981-04-02 | 1981-10-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-10-01 | 1985-04-02 | 1985-10-02 | $7700.00 | Window Closed / Lapsed |