US3754976A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Peen plating
Assignee: National Aeronautics and Space Administration
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Filing: 1971-12-06
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Granted: 1973-08-28
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Expires: 1991-12-06
Abstract
Abstract A process for metal plating which comprises spraying a mixture of metallic powder and small peening particles at high velocity against a surface, said velocity being sufficient to impact and bond said metallic powder onto said surface. In the case of metal surfaces, the process has as one of its advantages providing mechanical working (hardening) of the surface simultaneously with the metal plating.
Inventors
- 👤 A Babecki
- 👤 C Haehner
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 04:03
CPC Classifications
C; C23; C23C; C23C24/00; C23C24/02; C23C24/04; B; B24; B24C; B24C1/00; B24C1/10; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/4998; Y10T29/49982
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
25 words
The prOcess of claim 1 wherein the small, solid peening particles are selected from the group consisting of glass beads, metal shot, and ceramic beads.
Claim 2
Dependent Claim
24 words
The process of claim 1 wherein the spraying of the mixture of metallic powder and peening particles is effected by air or gas pressure.
Claim 3
Dependent Claim
21 words
The process of claim 1 wherein the metallic powder particle size is no larger than one half the peening particle size.
Claim 4
Dependent Claim
31 words
The process of claim 1 wherein said metallic powder comprises a mixture of dissimilar metallic powders or a mixture of at least one metallic powder with at least one non-metallic powder.
Claim 5
Dependent Claim
25 words
The process of claim 1 wherein the surface plated is selected from the group consisting essentially of metal, metal alloy, wood, plastic and ceramic substrates.
Claim 6
Dependent Claim
52 words
The process of claim 1, further comprising, prior to spraying said mixture against said surface, the steps of first preparing said surface to be plated by spraying said small, solid peening particles against said surface and then introducing said metallic powder to form said mixture of solid peening particles and metallic powder.
Claim 7
Dependent Claim
44 words
The process of claim 7 wherein the surface to be plated is metal and the spraying in the absence of metallic powder is conducted at an angle to the surface and at a peening velocity sufficient to induce compressive stresses into said metal substrate.
Claim 8
Dependent Claim
19 words
The process of claim 7 wherein the peening particles are selected from glass beads, metal shot and ceramic beads.
Claim 9
Dependent Claim
54 words
A process for plating which comprises spraying, in the absence of heat, a mixture including at least one metallic powder and small, solid peening particles at a high velocity against a surface, said velocity being sufficient for said metallic powder to be pounded and bonded to said surface by said small, solid peening particles.
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) | 1976-08-27 | 1977-02-26 | 1977-08-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1980-08-27 | 1981-02-26 | 1981-08-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1984-08-27 | 1985-02-26 | 1985-08-28 | $7700.00 | Window Closed / Lapsed |