US3853550A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for fabricating bimetallic members of thermoelements by sintering powdered compacts in the presence of graphite
Assignee: Individual
•
Filing: 1973-01-04
•
Granted: 1974-12-10
•
Expires: 1993-01-04
Abstract
Abstract A method for fabricating bimetallic members of thermoelements from ingots of alloys based on solid solutions of Bi2Te3 Sb2Te3, or Bi2Te3 - Bi2Se3 consisting in crushing the ingots to fines, pressing the fines in briquettes similar in shape to the bimetallic members of thermoelements, and annealing the briquettes in air in a thick-walled metal vessel with a powdered graphite medium.
Inventors
- 👤 A Pavlenko
- 👤 S Ljuskin
- 👤 V Koletvinov
- 👤 J Nikolaev
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 19:26
CPC Classifications
B; B22; B22F; B22F3/00; B22F3/24; H; H10; H10N; H10N10/00; H10N10/01; H10N10/80; H10N10/85; H10N10/851; H10N10/852; Y; Y10; Y10S; Y10S420/00; Y10S420/903
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
58 words
A METHOD FOR FABRICATING BIMETALLIC MEMBERS OF THERMOELEMENTS FROM INGOTS OF ALLOYS BASED ON A SOLID SOLUTION OF BI2TE3 - SB2TE3, COMPRISING CRISHING SAID INGOTS TO FINES, PRESSING SAID FINES IN BRIQUETTES SIMILAR IN SHAPE TO THE BIMETALLIC MEMBERS OF THE THERMOELEMENTS, AND ANNEALING SAID BRIQUETTES IN AIR IN A THICK-WALLED METAL VESSEL WITH A POWDERED GRAPHITE MEDIUM.
Claim 2
Independent Claim
58 words
A METHOD FOR FABRICATING BIMETALLIC MEMBERS OF THERMOELEMENTS FROM INGOTS OF ALLOYS BASED ON A SOLID SOLUTION OF BI2TE3 - SB2TE3, COMPRISING CRISHING SAID INGOTS TO FINES, PRESSING SAID FINES IN BRIQUETTES SIMILAR IN SHAPE TO THE BIMETALLIC MEMBERS OF THE THERMOELEMENTS, AND ANNEALING SAID BRIQUETTES IN AIR IN A THICK-WALLED METAL VESSEL WITH A POWDERED GRAPHITE MEDIUM.
Claim 3
Independent Claim
57 words
A method for fabricating bimetallic members of thermoelements from ingots of alloys based on a solid solution of Bi2Te3 -Bi2Se3, comprising crushing said ingots to fines, pressing said fines in briquettes similar in shape to the bimetallic members of the thermoelements, and annealing said briquettes in air in a thick-walled metal vessel with a powdered graphite medium.
Claim 4
Independent Claim
57 words
A method for fabricating bimetallic members of thermoelements from ingots of alloys based on a solid solution of Bi2Te3 -Bi2Se3, comprising crushing said ingots to fines, pressing said fines in briquettes similar in shape to the bimetallic members of the thermoelements, and annealing said briquettes in air in a thick-walled metal vessel with a powdered graphite medium.
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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) | 1977-12-09 | 1978-06-10 | 1978-12-10 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-12-09 | 1982-06-10 | 1982-12-10 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-12-09 | 1986-06-10 | 1986-12-10 | $7700.00 | Window Closed / Lapsed |