US3703622A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Gas-shielded arc torch
Assignee: CONLEY AND KLEPPEN ENTERPRISES Inc
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Filing: 1971-12-01
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Granted: 1972-11-21
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Expires: 1991-12-01
Abstract
Abstract A gas-shielded arc torch has a flexible shank between the head and the handle and is constructed to employ the inflowing gas to cool the electrode and head, thus maintaining high capacity in the torch, while permitting its production in reduced scale.
Inventors
- 👤 Arthur L Kleppen Jr
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 20:18
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/29; B23K9/291
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
127 words
A gas-cooled, gas-shielded arc torch, comprising: an insulated torch head for supporting an electrode and a gasdirecting nozzle surrounding said electrode, said head being devoid of supplemental coolant means; a neck extending transversely from said head at one side for supplying current to said electrode and gas to said nozzle; a gas and current conductive tubular metallic element in the form of a cylindrical single helix having an axial passage therethrough; a main current conductor in said axial passage secured conductively at its ends to portions of said element separated by several coils; flexible insulative means covering said element; gas and current supply means coupled to said element opposite said torch head; and handle means associated with said flexible insulative means to facilitate manipulation of said torch.
Claim 2
Dependent Claim
127 words
A gas-cooled, gas-shielded arc torch, comprising: an insulated torch head for supporting an electrode and a gasdirecting nozzle surrounding said electrode, said head being devoid of supplemental coolant means; a neck extending transversely from said head at one side for supplying current to said electrode and gas to said nozzle; a gas and current conductive tubular metallic element in the form of a cylindrical single helix having an axial passage therethrough; a main current conductor in said axial passage secured conductively at its ends to portions of said element separated by several coils; flexible insulative means covering said element; gas and current supply means coupled to said element opposite said torch head; and handle means associated with said flexible insulative means to facilitate manipulation of said torch.
Claim 3
Dependent Claim
127 words
A gas-cooled, gas-shielded arc torch, comprising: an insulated torch head for supporting an electrode and a gas-directing nozzle surrounding said electrode, said head being devoid of supplemental coolant means; a neck extending transversely from said head at one side for supplying current to said electrode and gas to said nozzle; a gas and current conductive tubular metallic element in the form of a cylindrical single helix having an axial passage therethrough; a main current conductor in said axial passage secured conductively at its ends to portions of said element separated by several coils; flexible insulative means covering said element; gas and current supply means coupled to said element opposite said torch head; and handle means associated with said flexible insulative means to facilitate manipulation of said torch.
Claim 4
Dependent Claim
127 words
A gas-cooled, gas-shielded arc torch, comprising: an insulated torch head for supporting an electrode and a gas-directing nozzle surrounding said electrode, said head being devoid of supplemental coolant means; a neck extending transversely from said head at one side for supplying current to said electrode and gas to said nozzle; a gas and current conductive tubular metallic element in the form of a cylindrical single helix having an axial passage therethrough; a main current conductor in said axial passage secured conductively at its ends to portions of said element separated by several coils; flexible insulative means covering said element; gas and current supply means coupled to said element opposite said torch head; and handle means associated with said flexible insulative means to facilitate manipulation of said torch.
Claim 5
Dependent Claim
13 words
The structure of claim 1 in which said main current conductor is multi-stranded.
Claim 6
Dependent Claim
19 words
The structure of claim 2 in which said multi-stranded main current conductor swells to substantially fill said axial passage.
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) | 1975-11-21 | 1976-05-22 | 1976-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-11-21 | 1980-05-22 | 1980-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-11-21 | 1984-05-22 | 1984-11-21 | $7700.00 | Window Closed / Lapsed |