Patent US7189374B1 successfully refreshed from Google Patents.
US4421799A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Aluminum clad refractory oxide flame spraying powder
Assignee: Oerlikon Metco US Inc
•
Filing: 1982-02-16
•
Granted: 1983-12-20
•
Expires: 2002-02-16
Abstract
Abstract A flame spray powder comprising particles with a central core of a material selected from the group consisting of zirconium oxide, magnesium oxide, hafnium oxide, cerium oxide, yttrium oxide and combinations thereof. The core then has discrete aluminum particles in a binder deposited therein to form the flame spray powder which may be flame sprayed produce an abradable and erosion resistant coating.
Inventors
- 👤 Edward R. Novinski
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 22:10
CPC Classifications
C; C23; C23C; C23C4/00; C23C4/04; C23C4/06; Y; Y10; Y10T; Y10T428/00; Y10T428/29; Y10T428/2982; Y10T428/2991; Y10T428/2993
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
59 words
A flame spray powder having a central core of a material selected from the group consisting of zirconium oxide, magnesium oxide, hafnium oxide, cerium oxide, yttrium oxide and combinations thereof, and aluminum bonded to the surface of said core wherein said aluminum is in the form of discrete particles bonded to the surface of said core with a binder.
Claim 2
Dependent Claim
59 words
A flame spray powder having a central core of a material selected from the group consisting of zirconium oxide, magnesium oxide, hafnium oxide, cerium oxide, yttrium oxide and combinations thereof, and aluminum bonded to the surface of said core wherein said aluminum is in the form of discrete particles bonded to the surface of said core with a binder.
Claim 3
Dependent Claim
29 words
The flame spray powder according to claim 1 in which said central core comprises a material selected from the group consisting of zirconium oxide, magnesium oxide and combinations thereof.
Claim 4
Dependent Claim
49 words
The flame spray powder according to claim 1 in which said particles have a size between about -100 mesh (U.S. standard screen size) and +5 microns, and said aluminum is present in an amount between 0.5% and 15% by weight based on the total of the aluminum and core.
Claim 5
Dependent Claim
25 words
The flame spray powder according to claim 3 in which said particles have a size between -200 mesh (U.S. standard screen size) and +15 microns.
Claim 6
Dependent Claim
31 words
A flame spray powder according to claim 3 in which aluminum is present in the amount between 1% and 10% by weight based on the total of the aluminum and core.
Claim 7
Dependent Claim
16 words
The flame spray powder according to claim 1 in which said binder is an organic binder.
Claim 8
Dependent Claim
63 words
A flame spray powder comprising particles having a magnesium zirconate core coated with a binder containing discrete particles of aluminum, said spray powder particles having a size between about -100 mesh (U.S. standard screen size) and +5 microns, and said aluminum is present in an amount between 1% and 10% by weight based on the total of the aluminum and magnesium zirconate core.
Claim 9
Dependent Claim
63 words
A flame spray powder comprising particles having a magnesium zirconate core coated with a binder containing discrete particles of aluminum, said spray powder particles having a size between about -100 mesh (U.S. standard screen size) and +5 microns, and said aluminum is present in an amount between 1% and 10% by weight based on the total of the aluminum and magnesium zirconate core.
Claim 10
Dependent Claim
52 words
A process for producing an abradable coating comprising: flame spraying flame spray powder particles comprising a core comprising a member selected from the group consisting of zirconium oxide, magnesium oxide, hafnium oxide, cerium oxide, yttrium oxide and combinations thereof, wherein a coating of aluminum is bonded to the surface of said core.
Claim 11
Dependent Claim
52 words
A process for producing an abradable coating comprising: flame spraying flame spray powder particles comprising a core comprising a member selected from the group consisting of zirconium oxide, magnesium oxide, hafnium oxide, cerium oxide, yttrium oxide and combinations thereof, wherein a coating of aluminum is bonded to the surface of said core.
Claim 12
Dependent Claim
19 words
The process according to claim 8 in which said flame spraying is accomplished with a combustion flame spray gun.
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) | 1986-12-19 | 1987-06-20 | 1987-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1990-12-19 | 1991-06-20 | 1991-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1994-12-19 | 1995-06-20 | 1995-12-20 | $7700.00 | Window Closed / Lapsed |