US4214015A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of coating metal substrates with alloys at elevated substrate temperatures
Assignee: Balzers und Leybold Deutschland Holding AG
•
Filing: 1978-11-15
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Granted: 1980-07-22
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Expires: 1998-11-15
Abstract
Abstract Method for coating metal substrates with alloys wherein the substrates are at a temperature above 500° C. The coating process is interrupted temporarily at least once and the substrates are allowed to cool by at least 30° C. Before the beginning of or during the resumed coating process, the substrate temperature is substantially restored.
Inventors
- 👤 Herbert Stephan
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 13:15
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/06; C23C14/14; C23C14/16; C23C14/22; C23C14/54; C23C14/541
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
86 words
Method for the vapor deposition of a coating of oxidation and corrosion inhibiting alloys including alloys from the group of CoCrAlY and NiCoCrAlY on metal substrates in a vacuum coating chamber at a substrate temperature above 500° C. which comprises interrupting the coating process temporarily at least once, allowing the substrates to cool by at least 30° C. and no more than 100° C., and before the beginning of or during the resumed coating process the substrate temperature that was present before cooling is substantially restored.
Claim 2
Dependent Claim
86 words
Method for the vapor deposition of a coating of oxidation and corrosion inhibiting alloys including alloys from the group of CoCrAlY and NiCoCrAlY on metal substrates in a vacuum coating chamber at a substrate temperature above 500° C. which comprises interrupting the coating process temporarily at least once, allowing the substrates to cool by at least 30° C. and no more than 100° C., and before the beginning of or during the resumed coating process the substrate temperature that was present before cooling is substantially restored.
Claim 3
Dependent Claim
17 words
Method of claim 1 wherein the substrate is at a temperature between 800° C. and 1100° C.
Claim 4
Dependent Claim
16 words
Method of claim 1 wherein the substrate is allowed to cool by 50° to 100° C.
Claim 5
Dependent Claim
22 words
Method of claim 1 wherein the reheating after cooling is performed in the vacuum coating chamber itself with a separate heat source.
Claim 6
Dependent Claim
32 words
Method of claim 1 carried out in the vacuum coating chamber with an electron beam vaporizer wherein reheating after cooling is performed by means of reflected electrons from the electron beam vaporizer.
Claim 7
Dependent Claim
63 words
Method of claim 1 carried out in the vacuum coating chamber preceded by a heating chamber wherein the substrate temperature is allowed to decrease by 50 to 100 degrees by interrupting the coating and heating process, the substrates are withdrawn into the heating chamber during or after the cooling, reheated to the prescribed substrate temperature and then returned to the vacuum coating chamber.
References Cited (Backward Citations)
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US3676085A
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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) | 1983-07-22 | 1984-01-21 | 1984-07-22 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1987-07-22 | 1988-01-21 | 1988-07-22 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1991-07-22 | 1992-01-21 | 1992-07-22 | $7700.00 | Window Closed / Lapsed |