US3689733A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Arc welding gun
Assignee: Individual
•
Filing: 1971-09-10
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Granted: 1972-09-05
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Expires: 1991-09-10
Abstract
Abstract Electric arc welding gun having a base secured to a power cable and gas tube, a head portion including a head member, an electrode-contacting tip and an annular nozzle, an intermediate gooseneck portion comprising a rigid curved neck interconnecting the base and head member, an insulating cap integral with the inner end of the head member, a head nut slidable on the insulating cap with its outer end screwed to the nozzle to hold the latter concentric with the tip and a radial flange at its inner end for contact only with the insulating cap to insulate the nozzle and nut from the tip, a tubular handle, a manually operable switch assembly, and a single ring clamp alone securing the switch assembly to the handle and the handle to the base and quickly releasable to permit selective adjustment of the head portion through 360* about the longitudinal axis of the handle to any desired position relative to the switch assembly, the base being interiorly grooved to direct gas from the gas tube to the gooseneck portion and thereby also employ the gas to effect a cooling action.
Inventors
- 👤 John L Matasovic
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 05:25
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291
Claims Analysis
Total Claims: 13
Claim 1
Independent Claim
116 words
In an electric arc welding gun supplied by a flexible power cable including a wire-carrying liner for receiving and guiding a mechanically fed consumable electrode, a gas tube and a flexible tubular jacket housing said cable and tube; a base secured to said cable and said tube; a head portion including a head member, an electrode-contacting tip and an annular nozzle surrounding said tip; an intermediate gooseneck portion comprising a rigid curved neck secured to said base and said head member; a longitudinally extending handle, and a single clamping means removably securing said handle to said base to permit selective angular adjustment of said gooseneck portion and base relative to the longitudinal axis of said handle.
Claim 2
Dependent Claim
116 words
In an electric arc welding gun supplied by a flexible power cable including a wire-carrying liner for receiving and guiding a mechanically fed consumable electrode, a gas tube and a flexible tubular jacket housing said cable and tube; a base secured to said cable and said tube; a head portion including a head member, an electrode-contacting tip and an annular nozzle surrounding said tip; an intermediate gooseneck portion comprising a rigid curved neck secured to said base and said head member; a longitudinally extending handle, and a single clamping means removably securing said handle to said base to permit selective angular adjustment of said gooseneck portion and base relative to the longitudinal axis of said handle.
Claim 3
Dependent Claim
57 words
An arc welding gun according to claim 1, wherein said handle is tubular with peripherally spaced slots therethrough at one end, said base is cylindrical and fits slidably into the slotted end of said handle, and said clamping means comprises a ring clamp for squeezing the slotted end of said handle into gripping engagement with said base.
Claim 4
Dependent Claim
62 words
In an arc welding gun according to claim 1, a pair of control wires housed by said tubular jacket, and a manually operable switch assembly mounted on said handle and electrically connected to said control wires, whereby said head portion may be selectively adjusted through 360* about the longitudinal axis of said handle to any desired position relative to said switch assembly.
Claim 5
Dependent Claim
21 words
An arc welding gun according to claim 3, wherein said switch assembly is secured to said handle by said clamping means.
Claim 6
Dependent Claim
30 words
In an arc welding gun according to claim 2, a manually operable control switch assembly mounted on said handle for movement therewith relative to said base and said head portion.
Claim 7
Dependent Claim
62 words
An arc welding gun according to claim 5, wherein said switch assembly includes an inwardly and longitudinally extending tang at its rear end and a longitudinally extending flange at its front end, and said handle is provided with a slot for receiving said tang and said ring clamp engages over said front flange to removably retain saID switch assembly on said handle.
Claim 8
Dependent Claim
43 words
An arc welding gun according to claim 1, wherein said tip is bored to slidably receive an electrode and counterbored at its inner end to receive the outer end of said liner, and means for removably securing said tip to said head member.
Claim 9
Dependent Claim
55 words
An arc welding gun according to claim 7, wherein said head member is bored to slidably receive said tip, threaded on its outer surface adjacent its outer end and provided with peripherally spaced slots in said outer end, and said last-recited means comprises a collet nut engaging the threaded outer surface of said head member.
Claim 10
Dependent Claim
64 words
In an arc welding gun according to claim 1, wherein said head member is tapped at its inner end to threadedly receive the outer end of said neck, an insulating cap mounted on the inner end of said head member, and a head nut slidably mounted on said insulating cap, the inner end of said nozzle being threaded for engagement by said head nut.
Claim 11
Dependent Claim
40 words
An arc welding gun according to claim 9, wherein said head nut is provided at its inner end with a radial flange against which the inner end of said head member is held by screwing said nozzle into said nut.
Claim 12
Dependent Claim
37 words
An arc welding gun according to claim 9, wherein said insulating cap comprises a permanent part of said head member and extends longitudinally thereof a distance sufficient to insure concentric spacing between said tip and said nozzle.
Claim 13
Dependent Claim
38 words
An arc welding gun according to claim 1, wherein said base is interiorly grooved to interconnect said gas tube and the interior of said neck, whereby gas flowing therethrough effects a cooling action with respect to said handle.
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) | 1975-09-05 | 1976-03-06 | 1976-09-05 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-09-05 | 1980-03-06 | 1980-09-05 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-09-05 | 1984-03-06 | 1984-09-05 | $7700.00 | Window Closed / Lapsed |