US3900639A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method for coating surfaces of a workpiece by spraying on a coating substance
Assignee: Siemens AG
•
Filing: 1973-10-29
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Granted: 1975-08-19
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Expires: 1993-10-29
Abstract
Abstract A method and apparatus for applying a homogeneous coating of material on a surface of a workpiece characterized by projecting a jet of heated particles of material at the surface to be coated and applying a transverse flow of gases to deflect decomposition products from the jet to the jet contacting the surface being coated. Preferably, the deflected decomposition products are caught by a collecting wall or plate and the method and apparatus can include a nozzle directing a cooling flow of gases onto the workpiece to prevent overheating of the coating and the workpiece.
Inventors
- 👤 Richard Lauterbach
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-24 09:48
CPC Classifications
H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/32; H05H1/42; B; B05; B05B; B05B12/00; B05B12/16; B05B12/18; B05B13/00; B05B13/02; B05B13/0278; B05B7/00; B05B7/02; B05B7/08; B05B7/0807; B05B7/16; B05B7/22; B05B7/222; C; C23; C23C; C23C4/00; C23C4/12; C23C4/134
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
106 words
A METHOD OF APPLYING A HOMOGENEOUS COATING OF MATERIAL ON A SURFACE OF A WORKPIECE COMPRISING CREATING A JET HEATED PARTICLES OF MATERIAL DIRECTING THE JET OF PARTICLES ALONG A PATH AT THE SURFACE TO BE COATED, REMOVING DECOMPOSITION PRODUCTS FROM THE JET OF PARTICLES PRIOR TO CONTACTING THE SURFACE OF THE WORKPIECE BY DIRECTING A FLOW OF GAS TRANSVERSLY TO THE PATH OF THE JET TO DEFLECT THE DECOMPOSITION PRODUCTS FROM THE PATH OF THE JET OF PARTICLES PRIOR TO THE PARTICLES OF THE JET STRIKIN THE SURFACE OF THE WORKPIECE, AND COLLECTING THE DECOMPOSITION PRODUCTS DEFLECTED FROM THE PATH OF THE JET OF PARTICLES.
Claim 2
Independent Claim
106 words
A METHOD OF APPLYING A HOMOGENEOUS COATING OF MATERIAL ON A SURFACE OF A WORKPIECE COMPRISING CREATING A JET HEATED PARTICLES OF MATERIAL DIRECTING THE JET OF PARTICLES ALONG A PATH AT THE SURFACE TO BE COATED, REMOVING DECOMPOSITION PRODUCTS FROM THE JET OF PARTICLES PRIOR TO CONTACTING THE SURFACE OF THE WORKPIECE BY DIRECTING A FLOW OF GAS TRANSVERSLY TO THE PATH OF THE JET TO DEFLECT THE DECOMPOSITION PRODUCTS FROM THE PATH OF THE JET OF PARTICLES PRIOR TO THE PARTICLES OF THE JET STRIKIN THE SURFACE OF THE WORKPIECE, AND COLLECTING THE DECOMPOSITION PRODUCTS DEFLECTED FROM THE PATH OF THE JET OF PARTICLES.
Claim 3
Dependent Claim
26 words
A method according to claim 1, which further includes the step of providing a cooling flow on the surface of the workpiece to prevent overheating thereof.
References Cited (Backward Citations)
US2570245A
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US2998922A
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US3197605A
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US3179783A
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US3254192A
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US3405247A
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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) | 1978-08-18 | 1979-02-17 | 1979-08-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-08-18 | 1983-02-17 | 1983-08-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-08-18 | 1987-02-17 | 1987-08-19 | $7700.00 | Window Closed / Lapsed |