Patent US2976598A successfully refreshed from Google Patents.
US2976598A
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Method of sintering
Assignee: General Dynamics Corp
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Filing: 1959-04-30
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Granted: 1961-03-28
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Expires: 1979-04-30
Abstract
No abstract record available.
Inventors
- 👤 Edward C Creutz
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 20:06
CPC Classifications
C; C04; C04B; C04B35/00; C04B35/622; C04B35/64; B; B22; B22F; B22F3/00; B22F3/002; B22F2998/00; Y; Y10; Y10S; Y10S264/00; Y10S264/44
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
120 words
A METHOD OF PRODUCING A FIRED CERAMIC OBJECT HAVING PRESCRIBED LINEAR DIMENSIONS AND SHAPE WHICH COMPRISES FIRST PREPARING A PLASTIC, CERAMIC MIX, WORKING A PORTION OF THE MIX TO FORM A COMPACT HAVING THE PRESCRIBED DIMENSIONS AND SHAPE WHICH ARE DESIRED FOR THE FINAL PRODUCT, THEN IMMERSING THE COMPACT IN A BATH OF MOLTEN METAL HAVING A SPECIFIC GRAVITY APPROXIMATING THAT OF THE COMPACT, SAID METAL BEING INERT TO THE MATERIAL IN SAID COMPACT WHEN THE LATTER IS HEATED TO A SINTERING TEMPERATURE IN THE BATH, AND KEEPING THE COMPACT IN SAID BATH FOR A SUFFICIENT LENGTH OF TIME AND AT A HIGH ENOUGH TEMPERATURE TO CONVERT SAID COMPACT INTO A SINTERED CERAMIC PRODUCT HAVING SAID PRESCRIBED DIMENSIONS AND SHAPE.
Claim 2
Independent Claim
120 words
A METHOD OF PRODUCING A FIRED CERAMIC OBJECT HAVING PRESCRIBED LINEAR DIMENSIONS AND SHAPE WHICH COMPRISES FIRST PREPARING A PLASTIC, CERAMIC MIX, WORKING A PORTION OF THE MIX TO FORM A COMPACT HAVING THE PRESCRIBED DIMENSIONS AND SHAPE WHICH ARE DESIRED FOR THE FINAL PRODUCT, THEN IMMERSING THE COMPACT IN A BATH OF MOLTEN METAL HAVING A SPECIFIC GRAVITY APPROXIMATING THAT OF THE COMPACT, SAID METAL BEING INERT TO THE MATERIAL IN SAID COMPACT WHEN THE LATTER IS HEATED TO A SINTERING TEMPERATURE IN THE BATH, AND KEEPING THE COMPACT IN SAID BATH FOR A SUFFICIENT LENGTH OF TIME AND AT A HIGH ENOUGH TEMPERATURE TO CONVERT SAID COMPACT INTO A SINTERED CERAMIC PRODUCT HAVING SAID PRESCRIBED DIMENSIONS AND SHAPE.
References Cited (Backward Citations)
US2352246A
Cited
GB711913A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1964-03-27 | 1964-09-26 | 1965-03-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1968-03-27 | 1968-09-26 | 1969-03-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1972-03-27 | 1972-09-26 | 1973-03-28 | $7700.00 | Window Closed / Lapsed |