Patent US3699642A successfully refreshed from Google Patents.
US3699642A
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Method for bonding sheet metal cladding to a body
Assignee: Westinghouse Electric Corp
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Filing: 1971-04-08
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Granted: 1972-10-24
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Expires: 1991-04-08
Abstract
Abstract A method for applying a cladding to the surface of a body by enclosing the body with a cladding of sheet metal or foil loosely adherent to the body surface in a mass of a non-reactive, nondensifying powder, and compressing the powder at a pressure of greater than about 500 psi and at elevated temperatures up to the melting point of the body or the cladding.
Inventors
- 👤 Frederick F Lange
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:46
CPC Classifications
F; F01; F01D; F01D5/00; F01D5/12; F01D5/28; F01D5/288; B; B23; B23K; B23K20/00; B23K20/02; B23K20/021; B23K2101/00; B23K2101/001
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
19 words
The method of claim 1 in which the pressure is applied from about 1,000 psi to about 5,000 psi.
Claim 2
Dependent Claim
25 words
The method of claim 1 in which the cladded base member is heated at a temperature of from about 600* C to about 1,000* C.
Claim 3
Dependent Claim
34 words
The method of claim 1 in which the pressure transmitting powder is at least one of the materials selected from a group consisting of SiC, Al2O3, TiO2, ZrO2, MgO, BN, BeO, NaCl, and Si3N4.
Claim 4
Dependent Claim
15 words
The method of claim 1 in which the powder is a non-reactive, non-densifying metal oxide.
References Cited (Backward Citations)
US1081618A
Cited
US2932882A
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US3141227A
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US3037883A
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US3114961A
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US3235958A
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US3469062A
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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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |