US3557337A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding torch
Assignee: Air Products and Chemicals Inc
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Filing: 1969-02-27
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Granted: 1971-01-19
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Expires: 1989-02-27
Abstract
Abstract A welding torch of the tungsten electrode and inert gas type having a gas hose which is separate from the power cable, each being separately secured to a connector within the handle portion of the torch. Either the gas hose or the power cable is thus individually replaceable to thereby minimize maintenance costs.
Inventors
- 👤 John M Sipos
- 👤 Donald B Daniels
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 10:20
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291; B23K9/296; B23K9/32; B23K9/323
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
221 words
A welding torch comprising a handle, a torch head mounted on said handle, and means carried by said handle for delivering shielding gas and welding current to said torch head, said lastnamed means comprising a conduit means extending through said handle to the torch head, a flexible hose means for the shielding gas, an electrical power cable for supplying the welding current, means for connecting said conduit means with said flexible hose and said electrical power cable including a connector mounted within said handle, one end of said connector having an axially extending bore securely receiving the end of said conduit means, the other end of said connector having a second axially extending bore and a third axially extending bore extending inwardly from said other end thereof, a tubular hose fitting having one end secured within said second bore and extending outwardly from said connector for connection to said flexible hose for the delivery of gas into the interior of said second bore, an internal passage within said connector interconnecting said second bore and said first bore for providing communication for the flow of gas therebetween, an electrical plug member positioned within said third bore and having an extended portion adapted to be electrically conneCted to said power cable and means for locking said electrical plug member within said third bore.
Claim 2
Dependent Claim
221 words
A welding torch comprising a handle, a torch head mounted on said handle, and means carried by said handle for delivering shielding gas and welding current to said torch head, said lastnamed means comprising a conduit means extending through said handle to the torch head, a flexible hose means for the shielding gas, an electrical power cable for supplying the welding current, means for connecting said conduit means with said flexible hose and said electrical power cable including a connector mounted within said handle, one end of said connector having an axially extending bore securely receiving the end of said conduit means, the other end of said connector having a second axially extending bore and a third axially extending bore extending inwardly from said other end thereof, a tubular hose fitting having one end secured within said second bore and extending outwardly from said connector for connection to said flexible hose for the delivery of gas into the interior of said second bore, an internal passage within said connector interconnecting said second bore and said first bore for providing communication for the flow of gas therebetween, an electrical plug member positioned within said third bore and having an extended portion adapted to be electrically conneCted to said power cable and means for locking said electrical plug member within said third bore.
Claim 3
Dependent Claim
36 words
A welding torch according to claim 1 wherein said first bore is aligned with the longitudinal axis of said connector, and said second and third bores are spaced radially relative to said axis of said connector.
Claim 4
Dependent Claim
87 words
A welding torch according to claim 2 wherein the portion of said electrical plug member extending within said cylindrical bore is generally cylindrical and has a recessed portion, a bore extending from the external cylindrical wall of said connector at an angle relative to a radius of said connector into said third bore, said last-named bore being threaded, and a set screw threadedly received and contained within said last-named bore and engaging said electrical plug member at said recessed portion for locking the same with said connector.
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) | 1974-01-18 | 1974-07-20 | 1975-01-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-01-18 | 1978-07-20 | 1979-01-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-01-18 | 1982-07-20 | 1983-01-19 | $7700.00 | Window Closed / Lapsed |