US3590212A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Anodized aluminum welding torch
Assignee: Miller Electric Manufacturing Co
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Filing: 1969-05-23
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Granted: 1971-06-29
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Expires: 1989-05-23
Abstract
Abstract A gas arc welding torch in which the nozzle is made of anodized aluminum and the contact tube is clad with anodized aluminum to prevent the sticking of weld spatter to these parts.
Inventors
- 👤 Don J Corrigall
- 👤 William D Oldershaw
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-28 02:01
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
49 words
The improved welding torch of claim 1 wherein said contact tube is copper and further comprising a layer of anodized aluminum on the outer surface of said contact tube for preventing weld spatter from sticking to said outer surface thereby preventing spatter buildup between said tube and said nozzle.
Claim 2
Independent Claim
66 words
The method of preventing weld spatter from sticking to the surface of a tubular gas nozzle of a gas arc welding torch in which a welding contact tube is disposed within and spaced from the nozzle, comprising the steps of: a. Making said nozzle of aluminum, and b. Anodizing said surface of said nozzle so that weld spatter impinging upon said surface will not stick thereto.
Claim 3
Dependent Claim
50 words
The method of claim 3 wherein said contact tube is made of copper and further comprising the step of forming on the outer surface of said contact tube a layer of anodized aluminum so that welding spatter impinging upon said outer surface of said contact tube will not stick thereto.
Claim 4
Dependent Claim
22 words
The method of claim 4 wherein said forming step further comprises cladding the outer surface of said contact tube with anodized aluminum.
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) | 1974-06-28 | 1974-12-28 | 1975-06-29 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-28 | 1978-12-28 | 1979-06-29 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-28 | 1982-12-28 | 1983-06-29 | $7700.00 | Window Closed / Lapsed |