US5138969A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device for cleaning the gas nozzle of a welding torch
Assignee: Individual
•
Filing: 1990-12-31
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Granted: 1992-08-18
•
Expires: 2010-12-31
Abstract
Abstract A device for cleaning the gas nozzle of a welding torch in which weld splatters have accumulated has a rotatable cutter which is axially movable into and out of a gas nozzle and the cutter is provided with a nozzle and passages for spraying an anti-adhesive agent into the gas nozzle either while the cutter is scraping or as the cutter is being withdrawn from the gas nozzle.
Inventors
- 👤 Friedelin Thielmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 12:04
CPC Classifications
F; F23; F23D; F23D14/00; F23D14/46; F23D14/48; F23D14/50; B; B23; B23K; B23K9/00; B23K9/32; B23K9/328
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
136 words
A device for cleaning the gas nozzle of a welding torch in which weld splatters have accumulated on the gas nozzle comprising a body, means on said body for positioning a gas nozzle to be cleaned, a rotatable cutter axially movable into and out of a said positioned gas nozzle to scrape weld splatter therefrom, and means on said cutter including a supply passage for an anti-adhesive agent and a means for spraying the anti-adhesive agent gas nozzle while said cutter is positioned in said gas nozzle and scraping weld splatter therefrom, said means for spraying comprises a spray nozzle connected to said supply passage, said cutter has a pair of axially extending cutter blades and said spray nozzle is directed toward said cutter blades to cool and lubricate said cutter blades and said gas nozzle.
Claim 2
Independent Claim
136 words
A device for cleaning the gas nozzle of a welding torch in which weld splatters have accumulated on the gas nozzle comprising a body, means on said body for positioning a gas nozzle to be cleaned, a rotatable cutter axially movable into and out of a said positioned gas nozzle to scrape weld splatter therefrom, and means on said cutter including a supply passage for an anti-adhesive agent and a means for spraying the anti-adhesive agent gas nozzle while said cutter is positioned in said gas nozzle and scraping weld splatter therefrom, said means for spraying comprises a spray nozzle connected to said supply passage, said cutter has a pair of axially extending cutter blades and said spray nozzle is directed toward said cutter blades to cool and lubricate said cutter blades and said gas nozzle.
Claim 3
Dependent Claim
32 words
A device as claimed in claim 1 wherein said cutter has a base and a rotational axis and said supply passage is disposed in said base at or near said rotational axis.
Claim 4
Dependent Claim
23 words
A device as claimed in claim 2 wherein said cutter further includes a shank and said supply passage is disposed in said shank.
Claim 5
Dependent Claim
40 words
A device as claimed in claim 2 wherein there is an annular recess on a stationary portion of said body rotatably receiving said cutter base, said base having a radial bore therein connecting said supply passage to said annular recess.
Claim 6
Dependent Claim
22 words
A device as claimed in claim 4 and further comprising means for connecting said annular recess to a supply of anti-adhesive agent.
Claim 7
Dependent Claim
34 words
A device as claimed in claim 5 and further comprising a source of fluid pressure connected to said supply of anti-adhesive agent to urge said agent into said annular recess and said supply passage.
References Cited (Backward Citations)
DE211505C
Cited
US4702195A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1995-08-18 | 1996-02-17 | 1996-08-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1999-08-18 | 2000-02-17 | 2000-08-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2003-08-18 | 2004-02-17 | 2004-08-18 | $7700.00 | Window Closed / Lapsed |