US3707615A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Nozzle for a plasma generator
Assignee: Metco Inc
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Filing: 1971-11-12
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Granted: 1972-12-26
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Expires: 1991-11-12
Abstract
Abstract An angular nozzle electrode for plasma generating devices is disclosed. The nozzle includes an inlet end, an intermediate portion and an outlet portion in angular relationship so as to maximize the function and operational life of the nozzle electrode.
Inventors
- 👤 Anthony J Rotolico
- 👤 Edwardo Romero
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 15:08
CPC Classifications
B; B05; B05B; B05B7/00; B05B7/16; B05B7/22; B05B7/222; B05B7/226; H; H05; H05H; H05H1/00; H05H1/24; H05H1/26; H05H1/32; H05H1/34; H05H1/3478; H05H1/3463
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
101 words
An angular nozzle electrode for a plasma generator, comprising a nozzle body having a passage extending therethrough, at least a portion of the wall of which is of electrically conductive material, said passage having an inlet end, an intermediate portion and an outlet portion terminating as an exit port, the axis of said outlet portion extending at an angle to the axis of said inlet end and at an angle to the axis of said intermediate portion greater than 0* but less than the angle to the axis of said inlet end, whereby to define three distinct portions of said passage.
Claim 2
Dependent Claim
101 words
An angular nozzle electrode for a plasma generator, comprising a nozzle body having a passage extending therethrough, at least a portion of the wall of which is of electrically conductive material, said passage having an inlet end, an intermediate portion and an outlet portion terminating as an exit port, the axis of said outlet portion extending at an angle to the axis of said inlet end and at an angle to the axis of said intermediate portion greater than 0* but less than the angle to the axis of said inlet end, whereby to define three distinct portions of said passage.
Claim 3
Dependent Claim
61 words
Angular nozzle electrode, according to claim 1, in which the axis of said inlet end, intermediate and outlet portions extend at angles to each other so that the sin of the angle between the axes of the outlet portion and intermediate portion is about nine-tenths of the sin of the angle between the axes of the outlet portion and inlet end.
Claim 4
Dependent Claim
53 words
Angular nozzle electrode, according to claim 2, in which the axis of said outlet portion extends at angles of about 45* to 90* to the angle of said inlet end, and the axis of said intermediate portion extends at an angle of about 4* to 28* to the axis of said inlet portion.
Claim 5
Dependent Claim
21 words
Angular nozzle electrode, according to claim 3, in which said inlet end of said passage conically narrows to said intermediate portion.
Claim 6
Dependent Claim
54 words
Angular nozzle electrode, according to claim 4, in which the axis of said outlet portion extends at an angle of about 65* to the axis of said inlet end, and in which the axis of said intermediate portion extends at an angle of about 10* to 12* to the axis of said inlet end.
Claim 7
Dependent Claim
20 words
Angular nozzle electrode, according to claim 5, including means for feeding flame spray powder in front of said exit port.
Claim 8
Dependent Claim
50 words
Angular nozzle electrode, according to claim 6, forming the nozzle electrode on a plasma flame spray gun, having a rod electrode extending coaxially with the axis of said inlet end, means for generating an arc between said rod electrode and said nozzle electrode, and a source of plasma forming gas.
Claim 9
Dependent Claim
49 words
Angular nozzle electrode, according to claim 1, forming the nozzle electrode on a plasma flame spray gun, having a rod electrode extending coaxially with the axis of said inlet end, means for generating an arc between said rod electrode and nozzle electrode, and a source of plasma forming gas.
Claim 10
Dependent Claim
25 words
Angular nozzle electrode, according to claim 1, including cooling fluid passages extending in the nozzle body surrounding at least a portion of said first-mentioned passage.
Claim 11
Dependent Claim
20 words
Angular nozzle electrode, according to claim 1, including means for feeding flame spray powder in front of said exit port.
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) | 1975-12-26 | 1976-06-26 | 1976-12-26 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-12-26 | 1980-06-26 | 1980-12-26 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-12-26 | 1984-06-26 | 1984-12-26 | $7700.00 | Window Closed / Lapsed |