US3693582A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for applying a metal coating to an elongated metal article
Assignee: Cockerill SA
•
Filing: 1970-02-10
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Granted: 1972-09-26
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Expires: 1990-02-10
Abstract
Abstract An apparatus for applying a metallic coating to an elongated metal article. The article to be coated is transported through an enclosure with closure gates at the ends. A source of ionized metallic atoms is positioned around the article. Also within the enclosure is a tubular deflection screen at a potential which is of the same polarity as the ionized atoms. The deflector screen deflects back towards the article the ionized atoms produced by the source which do not strike the article when emitted by the source.
Inventors
- 👤 Leon Joseph Eugene Delcour
- 👤 Dominique Thomas Franco Streel
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 20:02
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/22; C23C14/24; C23C14/56; C23C14/562; H; H01; H01J; H01J37/00; H01J37/30; H01J37/305; H01J37/3053
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
190 words
An apparatus including an enclosure for applying a metallic coating to an elongated metal article said apparatus comprising: a. closure gates at each end of the enclosure; b. transporting means for transporting said elongated metal article through the enclosure along a vertical path; c. source means for producing metallic atoms, the source means being positioned around the elongated metal article in a plane normal to the path; d. ionizing means for ionizing the atoms produced by said source means; e. tubular deflector screen means, surrounding in part the article passing therethrough for deflecting back towards the elongated metal article the metallic atoms which have passed to the side of the elongated metal article and have not condensed thereon, wherein the deflector screen means is positioned above the source means; f. a d.c. current source having one pole connected to the deflector screen means for applying a potential to said screen means which is of the same polarity as the polarity of said ionized atoms thereby enhancing the deflection by said screen means; and g. means for creating a vacuum of from 10 1 to 10 5 Torr within the enclosure.
Claim 2
Independent Claim
190 words
An apparatus including an enclosure for applying a metallic coating to an elongated metal article said apparatus comprising: a. closure gates at each end of the enclosure; b. transporting means for transporting said elongated metal article through the enclosure along a vertical path; c. source means for producing metallic atoms, the source means being positioned around the elongated metal article in a plane normal to the path; d. ionizing means for ionizing the atoms produced by said source means; e. tubular deflector screen means, surrounding in part the article passing therethrough for deflecting back towards the elongated metal article the metallic atoms which have passed to the side of the elongated metal article and have not condensed thereon, wherein the deflector screen means is positioned above the source means; f. a d.c. current source having one pole connected to the deflector screen means for applying a potential to said screen means which is of the same polarity as the polarity of said ionized atoms thereby enhancing the deflection by said screen means; and g. means for creating a vacuum of from 10 1 to 10 5 Torr within the enclosure.
Claim 3
Dependent Claim
16 words
Apparatus as claimed in claim 1, wherein the deflector screen means is arranged to be heated.
Claim 4
Dependent Claim
34 words
Apparatus as claimed in claim 2, wherein the deflector screen means is raised to a temperature equal to at least to seven-tenths of the temperature of vaporization of the metal producing the metallic atoms.
Claim 5
Dependent Claim
23 words
Apparatus as claimed in claim 1, wherein the deflector screen means is defined by the internal surface of a geometrical body with edges.
Claim 6
Dependent Claim
36 words
Apparatus as claimed in claim 1, wherein the source means of metallic atoms comprises at least one crucible containing the metal to be vaporized under, said apparatus further including an electron gun for vaporizing the metal.
Claim 7
Dependent Claim
27 words
Apparatus as claimed in claim 5, further including means for moving the stream of electrons issuing from the said electron gun in a to and fro movement.
Claim 8
Dependent Claim
18 words
Apparatus as claimed in claim 5, wherein the crucible containing the metal has the form of a ring.
Claim 9
Dependent Claim
15 words
Apparatus as claimed in claim 1, wherein the deflector screen means has a cylindrical/conical shape.
Claim 10
Dependent Claim
22 words
Apparatus as claimed in claim 1 wherein the deflector screen means is defined by the internal surface of a body of revolution.
Claim 11
Dependent Claim
23 words
The apparatus as set forth in claim 1 wherein said tubular deflector screen means has a rectangular cross section in the horizontal plane.
Claim 12
Dependent Claim
23 words
The apparatus as set forth in claim 1 wherein said tubular deflector screen means has a circular cross section in the horizontal plane.
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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) | 1975-09-26 | 1976-03-27 | 1976-09-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-26 | 1980-03-27 | 1980-09-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-26 | 1984-03-27 | 1984-09-26 | $7700.00 | Window Closed / Lapsed |