US4064295A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Spraying atomized particles
Assignee: National Research Development Corp UK
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Filing: 1976-03-05
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Granted: 1977-12-20
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Expires: 1996-03-05
Abstract
Abstract A stream of gas atomized particles moves past a secondary gas stream towards a substrate. The secondary stream is directed in an oscillatory manner against the stream of atomized particles to deflect the latter such that the particles are distributed in a controlled manner over the surface of the substrate.
Inventors
- 👤 Alfred Richard Eric Singer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 12:57
CPC Classifications
B; B22; B22F; B22F9/00; B22F9/02; B22F9/06; B22F9/08; B22F9/082; B05; B05B; B05B13/00; B05B7/00; B05B7/02; B05B7/08; B05B7/0807; B05B7/0861; B05B7/16; B05B7/1606; B05D; B05D1/00; B05D1/02; B05D3/00; B05D3/04; B05D3/0406; B05D3/042; B22F3/00; B22F3/115; C; C23; C23C; C23C4/00; C23C4/12; C23C4/123
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
144 words
A process for spraying atomized particles onto a substrate comprising the steps of: producing a stream of gas atomized particles and directing the stream towards said substrate; directing secondary streams of gas sequentially against the stream of gas atomized particles from opposite sides thereof to deflect the stream of gas atomized particles and to impart thereto a continuous oscillation substantially in a single plane, said secondary streams each having a component of motion which is in the undeflected direction of flow of the stream of atomized particles and each having a maximum pressure in the same order of magnitude as the pressure of the gas in the atomized particle stream; and moving said substrate relative to the plane of the particle stream whereby the plane intersects said substrate along a line substantially at a right angle to the direction of movement of the substrate.
Claim 2
Dependent Claim
144 words
A process for spraying atomized particles onto a substrate comprising the steps of: producing a stream of gas atomized particles and directing the stream towards said substrate; directing secondary streams of gas sequentially against the stream of gas atomized particles from opposite sides thereof to deflect the stream of gas atomized particles and to impart thereto a continuous oscillation substantially in a single plane, said secondary streams each having a component of motion which is in the undeflected direction of flow of the stream of atomized particles and each having a maximum pressure in the same order of magnitude as the pressure of the gas in the atomized particle stream; and moving said substrate relative to the plane of the particle stream whereby the plane intersects said substrate along a line substantially at a right angle to the direction of movement of the substrate.
Claim 3
Dependent Claim
14 words
A process according to claim 1, in which the particles are atomized metal particles.
Claim 4
Dependent Claim
33 words
A process according to claim 1, in which the secondary gas streams are at an angle to the undeflected direction of flow of the stream of atomized particles of from 30° to 60°.
Claim 5
Dependent Claim
21 words
A process according to claim 1, in which said secondary streams of gas are supplied sequentially from the same pressure source.
Claim 6
Dependent Claim
28 words
A process according to claim 4, in which the supply of gas to the secondary gas streams is controlled by a rotary valve rotating at a uniform speed.
Claim 7
Dependent Claim
19 words
A process according to claim 5 in which the rotary valve is operated at from 100 to 1000 r.p.m.
Claim 8
Dependent Claim
33 words
A process according to claim 6, in which the substrate is moved relative to the plane of oscillation of the particle stream at a rate of from 1 to 100 meters per minute.
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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) | 1980-12-19 | 1981-06-20 | 1981-12-20 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1984-12-19 | 1985-06-20 | 1985-12-20 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1988-12-19 | 1989-06-20 | 1989-12-20 | $7700.00 | Window Closed / Lapsed |