Patent US3158732A successfully refreshed from Google Patents.
US3158732A
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Method of diffusion joining in vacuum of metals, alloys and materials different in kind
Assignee: Individual
•
Filing: 1961-02-27
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Granted: 1964-11-24
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Expires: 1981-02-27
Abstract
No abstract record available.
Inventors
- 👤 Fedotovich Nicolay
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 18:27
CPC Classifications
B; B23; B23K; B23K20/00; B23K20/14; Y; Y10; Y10S; Y10S228/00; Y10S228/903
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
110 words
A METHOD OF JOINING TO EACH OTHER, METALS, ALLOYS AND RARE METALS DIFFERENT IN KIND AND FOR JOINING METALS TO NON-METALLIC MATERIALS, SAID METHOD COMPRISING THE STEPS OF SUBJECTING THE ARTICLES TO BE JOINED TO A HIGH VACUUM OF THE ORDER OR 10**-2 TO 10**-7 MM. HG, HEATING SAID ARTICLES TO A TEMPERATURE GREATER THAN THE RECRYSTALLIZATION TEMPERATURE BUT LESS THAN THE FUSION TEMPERATURE OF ONE OR MORE OF SAID ARTICLES AND APPLYING A CLAMPING PRESSURE TO SAID ARTICLES OF THE ORDER OF FROM ONE TO TWO KG. PER SQ. MM. BUT BELOW DEFORMATION PRESSURE, WHEREBY DIFFUSION OF ATOMS AND MOLECULES OCCURS BETWEEN SAID ARTICLES TO JOIN SAID ARTICLES TOGETHER.
Claim 2
Independent Claim
110 words
A METHOD OF JOINING TO EACH OTHER, METALS, ALLOYS AND RARE METALS DIFFERENT IN KIND AND FOR JOINING METALS TO NON-METALLIC MATERIALS, SAID METHOD COMPRISING THE STEPS OF SUBJECTING THE ARTICLES TO BE JOINED TO A HIGH VACUUM OF THE ORDER OR 10**-2 TO 10**-7 MM. HG, HEATING SAID ARTICLES TO A TEMPERATURE GREATER THAN THE RECRYSTALLIZATION TEMPERATURE BUT LESS THAN THE FUSION TEMPERATURE OF ONE OR MORE OF SAID ARTICLES AND APPLYING A CLAMPING PRESSURE TO SAID ARTICLES OF THE ORDER OF FROM ONE TO TWO KG. PER SQ. MM. BUT BELOW DEFORMATION PRESSURE, WHEREBY DIFFUSION OF ATOMS AND MOLECULES OCCURS BETWEEN SAID ARTICLES TO JOIN SAID ARTICLES TOGETHER.
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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) | 1967-11-24 | 1968-05-25 | 1968-11-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1971-11-24 | 1972-05-25 | 1972-11-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1975-11-24 | 1976-05-25 | 1976-11-24 | $7700.00 | Window Closed / Lapsed |