US2871694A
Expired / Lapsed
US
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Determining gas content in metals
Assignee: GTE Sylvania Inc
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Filing: 1956-08-09
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Granted: 1959-02-03
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Expires: 1976-08-09
Abstract
No abstract record available.
Inventors
- 👤 Donald B Watkins
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 13:58
CPC Classifications
G; G01; G01N; G01N7/00; G01N7/14; G01N33/00; G01N33/20; G01N33/202; G01N33/2022; G01N33/2025
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
117 words
A METHOD FOR FORMING GLASS EMBEDDED METAL SAMPLES FROM WHICH THE GAS CONTENT OF A METAL MAY BE DETERMINED WHICH COMPRISES VERTICALLY SUPPORTING A GLASS TUBE WITH CLOSED BOTTOM, PLACING WITHIN THE TUBE A SAMPLE OF METAL WHOSE GAS CONTENT IS TO BE DETERMINED, APPLYING HEAT TO THE GLASS TUBING IN AN UPWARD DIRECTION OF THE TUBING TO CAUSE THE GLASS TO ENFOLD ABOUT THE METAL IN AN UPWARDLY PROGRESSIVE ZONE TO ELIMINATE ANY GASES EXISTING BETWEEN THE GLASS AND METAL, CONTINUING THIS HEATING UNTIL THE METAL IS COMPLETELY ENCLOSED WITHIN THE GLASS , AND MAINTAINING THE APPLICATION OF HEAT TO THE TUBING TO ENABLE GASSES EVOLVED FROM WITHIN THE METAL TO BE OCCULED WITHIN THE GLASS.
Claim 2
Independent Claim
117 words
A METHOD FOR FORMING GLASS EMBEDDED METAL SAMPLES FROM WHICH THE GAS CONTENT OF A METAL MAY BE DETERMINED WHICH COMPRISES VERTICALLY SUPPORTING A GLASS TUBE WITH CLOSED BOTTOM, PLACING WITHIN THE TUBE A SAMPLE OF METAL WHOSE GAS CONTENT IS TO BE DETERMINED, APPLYING HEAT TO THE GLASS TUBING IN AN UPWARD DIRECTION OF THE TUBING TO CAUSE THE GLASS TO ENFOLD ABOUT THE METAL IN AN UPWARDLY PROGRESSIVE ZONE TO ELIMINATE ANY GASES EXISTING BETWEEN THE GLASS AND METAL, CONTINUING THIS HEATING UNTIL THE METAL IS COMPLETELY ENCLOSED WITHIN THE GLASS , AND MAINTAINING THE APPLICATION OF HEAT TO THE TUBING TO ENABLE GASSES EVOLVED FROM WITHIN THE METAL TO BE OCCULED WITHIN THE GLASS.
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) | 1962-02-02 | 1962-08-04 | 1963-02-03 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1966-02-02 | 1966-08-04 | 1967-02-03 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1970-02-02 | 1970-08-04 | 1971-02-03 | $7700.00 | Window Closed / Lapsed |