US4542111A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spray powder for the manufacture of wear resistant and temperature resistant coatings
Assignee: Goetze GmbH
•
Filing: 1983-11-28
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Granted: 1985-09-17
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Expires: 2003-11-28
Abstract
Abstract A spray powder for the manufacture of wear resistant and temperature resistant coatings, the powder comprising 50 to 90 weight percent aluminum oxide (Al 2 O 3 ) and 5 to 40 weight percent titanium dioxide (TiO 2 ) with additives in the form of 5 to 30 weight percent lanthanum oxide (La 2 O 3 ) and/or niobium oxide (Nb 2 O 5 ), possibly together with 30 weight percent calcium carbonate (CaCO 3 ).
Inventors
- 👤 Ulrich Buran
- 👤 Manfred Fischer
- 👤 Hans J. Neuehauser
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 08:09
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/10; C23C4/11; F; F05; F05C; F05C2201/00; F05C2201/02; F05C2201/021
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
109 words
Spray powder containing aluminum oxide and titanium dioxide for the manufacture of wear resistant and break-out resistant coatings, the spray powder consisting essentially of: 50 to 90 weight percent aluminum oxide (Al 2 O 3 ), 5 to 40 weight percent titanium dioxide (TiO 2 ), and from 10 up to 30 weight percent of at least one oxide selected from lanthanum oxide (La 2 O 3 ), a mixture of lanthanum oxide with up to 30 weight percent other oxides of rare earth metals, niobium oxide (Nb 2 O 5 ), and a mixture of niobium oxide with up to 30 weight percent calcium carbonate (CaCO 3 ).
Claim 2
Dependent Claim
109 words
Spray powder containing aluminum oxide and titanium dioxide for the manufacture of wear resistant and break-out resistant coatings, the spray powder consisting essentially of: 50 to 90 weight percent aluminum oxide (Al 2 O 3 ), 5 to 40 weight percent titanium dioxide (TiO 2 ), and from 10 up to 30 weight percent of at least one oxide selected from lanthanum oxide (La 2 O 3 ), a mixture of lanthanum oxide with up to 30 weight percent other oxides of rare earth metals, niobium oxide (Nb 2 O 5 ), and a mixture of niobium oxide with up to 30 weight percent calcium carbonate (CaCO 3 ).
Claim 3
Dependent Claim
54 words
Spray powder as defined in claim 1 wherein the spray powder consists essentially of 50 weight percent aluminum oxide (Al 2 O 3 ), 30 weight percent titanium dioxide (TiO 2 ), a total of 16 weight percent niobium oxide (Nb 2 O 3 ) and 4 weight percent calcium corbonate (CaCO 3 ).
Claim 4
Dependent Claim
43 words
Spray powder as defined in claim 1, wherein the spray powder consists essentially of 50 weight percent aluminum oxide (Al 2 O 3 ), 30 weight percent titanium dioxide (TiO 2 ), and 20 weight percent lanthanum oxide (La 2 O 3 ).
Claim 5
Dependent Claim
64 words
Spray powder as defined in claim 1, wherein the spray powder consists essentially of 50 weight percent aluminum oxide (Al 2 O 3 ), 30 weight percent titanium dioxide (TiO 2 ), 16 weight percent of a mixture of lanthanum oxide (La 2 O 3 ), and niobium oxide (Nb 2 O 5 ) and 4 weight percent of calcium carbonate (CaCO 3 ).
Claim 6
Dependent Claim
18 words
Spray powder as defined in claim 1, wherein the spray powder is a mixture of the individual components.
Claim 7
Dependent Claim
23 words
Spray powder as defined in claim 1, wherein the spray powder contains micropellets consisting of at least two components which are pressed together.
Claim 8
Dependent Claim
23 words
Spray powder as defined in claim 1, wherein the spray powder contains a compound powder consisting of at least two of the components.
Claim 9
Dependent Claim
25 words
Spray powder as defined in claim 1, wherein the spray powder contains at least one reaction product of at least two of the oxidic components.
Claim 10
Dependent Claim
33 words
Spray powder as defined in claim 1, consisting essentially of 50 to 90 weight percent oxide, 5 to 40 weight percent titanium dioxide, and from 10 up to 30 weight percent lanthanum oxide.
Claim 11
Dependent Claim
21 words
Spray powder as defined in claim 1, wherein the grain size of the components employed is between 5 and 106 microns.
References Cited (Backward Citations)
GB681250A
Cited
US3278324A
Cited
US3697091A
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FR2186548A1
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DE2336668A1
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FR2204503A1
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US3926567A
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DE2419773A1
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US4173518A
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US4106782A
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US4180622A
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US4248440A
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US4414249A
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JPS56156773A
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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) | 1988-09-16 | 1989-03-18 | 1989-09-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-09-16 | 1993-03-18 | 1993-09-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-09-16 | 1997-03-18 | 1997-09-17 | $7700.00 | Window Closed / Lapsed |