US3655428A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Coating metallic materials
Assignee: Centre de Recherches Metallurgiques CRM ASBL
•
Filing: 1970-01-02
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Granted: 1972-04-11
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Expires: 1990-01-02
Abstract
Abstract In a low pressure enclosure (10 1 to 10 5 Torr), a substance intended to serve as a coating is held at a temperature at which it vaporizes. The material to be coated is disposed near the substance, at least part of the material being opposite the free surface of the substance. At least one screen is positioned in such a manner that at least part of the vaporized substance coming into contact with the screen is reflected from the screen towards parts of the material facing away from the free surface. The screen is held at a temperature at least equal to the melting temperature of the substance.
Inventors
- 👤 Adolphe Andre Bragard
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 01:04
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/56; C23C14/562; C23C14/04; C23C14/042; C23C14/044
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
36 words
A process as claimed in claim 1, said screen being constituted by said enclosure, including holding the internal surface of said enclosure at a temperature at least equal to the melting temperature of said coating substance.
Claim 2
Dependent Claim
35 words
A process as claimed in claim 2, said enclosure being cylindrical, including feeding said metal wires into said enclosure in an air-tight manner, and withdrawing said metal wires from said enclosure in an air-tight manner.
Claim 3
Dependent Claim
110 words
A process as claimed in claim 1 said enclosure containing an array of auxiliary wires and electron emitters for heating said auxiliary wires, including passing said metal wires to be coated through said array of auxiliary wires, and bombarding each auxiliary wire with electrons from at least one electron emitter, in which process: a. said wires to be coated are substantially parallel to each other; b. said auxiliary wires are substantially parallel to each other; c. said wires to be coated are substantially parallel to said auxiliary wires; and d. said wires to be coated do not meet said auxiliary wires, said emitters, or the electron trajectories, during their passage.
Claim 4
Dependent Claim
26 words
A process as claimed in claim 4, in which the direction of motion of said wires to be coated is substantially parallel to said auxiliary wires.
Claim 5
Dependent Claim
58 words
A process As claimed in claim 4, in which said wires to be coated each lie along an edge of a regular lattice of hexagonal prisms; each auxiliary wire lies along the longitudinal axis of one of said prisms; and said emitters are placed between said auxiliary wires, at a ratio of one emitter per two auxiliary wires.
References Cited (Backward Citations)
US2879739A
Cited
US3019129A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-04-11 | 1975-10-11 | 1976-04-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-11 | 1979-10-11 | 1980-04-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-11 | 1983-10-11 | 1984-04-11 | $7700.00 | Window Closed / Lapsed |