US3305923A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Methods for bonding dissimilar materials
Assignee: BUREAU D'ETUDES INDUSTRIELLES FERNAND COURTOY
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Filing: 1964-06-09
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Granted: 1967-02-28
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Expires: 1984-06-09
Abstract
No abstract record available.
Inventors
- 👤 Zimmer Frantisek
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 13:05
CPC Classifications
B; B23; B23K; B23K35/00; B23K35/001; B32; B32B; B32B15/00; B32B15/01; C; C04; C04B; C04B37/00; C04B37/003; C04B37/006; C04B2237/00; C04B2237/02; C04B2237/12; C04B2237/122; C04B2237/123; C04B2237/126; C04B2237/127; C04B2237/30; C04B2237/32; C04B2237/40; C04B2237/401; C04B2237/50; C04B2237/58; C04B2237/64; C04B2237/72; C04B2237/76; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49988
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
105 words
A METHOD OF PRODUCING A METALLIC TRANSITION PIECE FOR BONDING TWO MATERIALS HAVING SBUSTANTIALLY DIFFERENT COEFFICIENTS OF EXPANSION; COMPRISING, CONTINUOUSLY MELTING A BODY OF AT LEAST TWO METALS HAVING COEFFICIENTS OF EXPANSION SUBSTANTIALLY DIFFERENT FROM ONE ANOTHER AND SUBSTANTIALLY THE SAME AS RESPECTIVE ONES OF SAID MATERIALS, AND COOLING THE MELTED BODY OF METALS TO FORM AN INGOT OF CONTINUOUSLY VARYING CONTENT OF SAID METALS WHOSE COEFFICIENT OF EXPANSION VARIES CONTINUOUSLY FROM THE COEFFICIENT OF EXPANSION OF ONE OF SAID MATERIALS AT ONE END TO THE COEFFICIENT OF EXPANSION OF THE OTHER OF SAID MATERIALS AT THE OTHER END AND AS A SMOOTH S-SHAPED FUNCTION.
Claim 2
Independent Claim
105 words
A METHOD OF PRODUCING A METALLIC TRANSITION PIECE FOR BONDING TWO MATERIALS HAVING SBUSTANTIALLY DIFFERENT COEFFICIENTS OF EXPANSION; COMPRISING, CONTINUOUSLY MELTING A BODY OF AT LEAST TWO METALS HAVING COEFFICIENTS OF EXPANSION SUBSTANTIALLY DIFFERENT FROM ONE ANOTHER AND SUBSTANTIALLY THE SAME AS RESPECTIVE ONES OF SAID MATERIALS, AND COOLING THE MELTED BODY OF METALS TO FORM AN INGOT OF CONTINUOUSLY VARYING CONTENT OF SAID METALS WHOSE COEFFICIENT OF EXPANSION VARIES CONTINUOUSLY FROM THE COEFFICIENT OF EXPANSION OF ONE OF SAID MATERIALS AT ONE END TO THE COEFFICIENT OF EXPANSION OF THE OTHER OF SAID MATERIALS AT THE OTHER END AND AS A SMOOTH S-SHAPED FUNCTION.
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) | 1970-02-27 | 1970-08-29 | 1971-02-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1974-02-27 | 1974-08-29 | 1975-02-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1978-02-27 | 1978-08-29 | 1979-02-28 | $7700.00 | Window Closed / Lapsed |