US4554432A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Components for gas metal arc welding gun
Assignee: Delaware Capital Formation Inc
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Filing: 1984-10-05
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Granted: 1985-11-19
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Expires: 2004-10-05
Abstract
Abstract A gas metal arc welding gun includes a power cable in which the power conductors are asymmetrically distributed in a crescent between a gas conduit and a sheath in order to improve flexibility of the power cable. The welding gun includes a head assembly which includes a head that defines an internal annular ridge between a contact tip and a free end of an electrode liner. This annular ridge serves as a stop for the contact tip, as a centering guide for the electrode liner, and as a shield to protect the electrode from welding spatter. The welding gun includes a two-piece handle which includes a tongue and aperture guide at one end, and an interlocking flange guide at the other end. The two guides restrict movement between the two housing parts to axial movement, and a snap ring locks the two housing parts in a desired assembled position.
Inventors
- 👤 Valgene E. Raloff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-04 08:18
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291; B23K9/295
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
155 words
In a gas metal arc welding gun of the type comprising a contact tip, a gas nozzle around the contact tip, and an electrode liner positioned to direct an electrode to the contact tip, the improvement comprising: a head member which defines a first recess sized to receive the contact tip, a second recess sized to receive the electrode liner, an internal, annular ridge which defines a restricted diameter passageway between the first and second recesses, and at least one gas port through the head member intersecting the second recess to direct a gas from the second recess to a region between the gas nozzle and the contact tip; said passageway sized to pass the electrode liner therethrough to allow the electrode liner to contact the contact tip directly; said annular ridge operating simultaneously to provide a stop for the contact tip, to center the electrode liner, and to protect the electrode from welding spatter.
Claim 2
Dependent Claim
155 words
In a gas metal arc welding gun of the type comprising a contact tip, a gas nozzle around the contact tip, and an electrode liner positioned to direct an electrode to the contact tip, the improvement comprising: a head member which defines a first recess sized to receive the contact tip, a second recess sized to receive the electrode liner, an internal, annular ridge which defines a restricted diameter passageway between the first and second recesses, and at least one gas port through the head member intersecting the second recess to direct a gas from the second recess to a region between the gas nozzle and the contact tip; said passageway sized to pass the electrode liner therethrough to allow the electrode liner to contact the contact tip directly; said annular ridge operating simultaneously to provide a stop for the contact tip, to center the electrode liner, and to protect the electrode from welding spatter.
Claim 3
Dependent Claim
16 words
The invention of claim 1 wherein the first and second recesses are shaped as coaxial bores.
Claim 4
Dependent Claim
25 words
The invention of claim 1 wherein the annular ridge defines an inclined surface adjacent the second recess to guide the electrode liner into the passageway.
Claim 5
Dependent Claim
155 words
A head member for a gas metal arc welding gun of the type comprising a contact tip, a gas nozzle around the contact tip, and an electrode liner positioned to direct an electrode to the contact tip, said head member comprising: a hollow element which defines a first recess sized to receive the contact tip, a second recess sized to receive the electrode liner, an internal, annular ridge which defines a restricted diameter passageway between the first and second recesses, and at least one gas port intersecting the second recess to direct a gas from the second recess to a region between the gas nozzle and the contact tip; said passageway sized to pass the electrode liner therethrough to allow the electrode liner to contact the contact tip directly; said annular ridge operating simultaneously to provide a stop for the contact tip, to center the electrode liner, and to protect the electrode from welding spatter.
Claim 6
Dependent Claim
155 words
A head member for a gas metal arc welding gun of the type comprising a contact tip, a gas nozzle around the contact tip, and an electrode liner positioned to direct an electrode to the contact tip, said head member comprising: a hollow element which defines a first recess sized to receive the contact tip, a second recess sized to receive the electrode liner, an internal, annular ridge which defines a restricted diameter passageway between the first and second recesses, and at least one gas port intersecting the second recess to direct a gas from the second recess to a region between the gas nozzle and the contact tip; said passageway sized to pass the electrode liner therethrough to allow the electrode liner to contact the contact tip directly; said annular ridge operating simultaneously to provide a stop for the contact tip, to center the electrode liner, and to protect the electrode from welding spatter.
Claim 7
Dependent Claim
16 words
The invention of claim 4 wherein the first and second recesses are shaped as coaxial bores.
Claim 8
Dependent Claim
25 words
The invention of claim 4 wherein the annular ridge defines an inclined surface adjacent the second recess to guide the electrode liner into the passageway.
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) | 1988-11-18 | 1989-05-20 | 1989-11-19 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1992-11-18 | 1993-05-20 | 1993-11-19 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1996-11-18 | 1997-05-20 | 1997-11-19 | $7700.00 | Window Closed / Lapsed |