Patent US3882300A successfully refreshed from Google Patents.
US3882300A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Means in welding tools for welding with welding electrodes and means for smoke removal
Assignee: Individual
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Filing: 1973-10-30
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Granted: 1975-05-06
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Expires: 1993-10-30
Abstract
Abstract A welding tool for welding using a consumable electrode, the welding tool comprising means for the removal of the welding smoke and means for feeding the welding electrode as it is consumed during welding.
Inventors
- 👤 Jan Anders Rolf Karlsson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 08:47
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/12; B23K9/133; B23K9/1336; B08; B08B; B08B15/00; B08B15/04
Claims Analysis
Total Claims: 9
Claim 1
Independent Claim
106 words
A welding tool comprising a consumable rod electrode having a working end and a contact end, a hollow casing directly surrounding said electrode and having an opening adapted to face a welding zone, means for supporting said electrode within said casing and for selectively feeding said electrode to present the working end of said electrode toward said opening as said electrode is consumed, means for connecting the contact end of said electrode to a source of current and a conduit connected to said casing and communicating with its interior leading to a source off suction for removal of smoke produced during welding from about said electrode.
Claim 2
Dependent Claim
106 words
A welding tool comprising a consumable rod electrode having a working end and a contact end, a hollow casing directly surrounding said electrode and having an opening adapted to face a welding zone, means for supporting said electrode within said casing and for selectively feeding said electrode to present the working end of said electrode toward said opening as said electrode is consumed, means for connecting the contact end of said electrode to a source of current and a conduit connected to said casing and communicating with its interior leading to a source off suction for removal of smoke produced during welding from about said electrode.
Claim 3
Dependent Claim
44 words
A welding tool according to claim 1 wherein the feeding means comprises a pair of opposed rotatable elements journaled in said casing and spaced to receive said electrode therebetween and means for rotating at least one of said elements to thereby move said electrode.
Claim 4
Dependent Claim
35 words
The welding tool according to claim 2 wherein said driving means is located within said casing and includes means for selectively acutating saId driving means for transmitting a continuous or indexing movement to said electrode.
Claim 5
Dependent Claim
15 words
The welding tool according to claim 3 wherein said driving means is an electric motor.
Claim 6
Dependent Claim
15 words
The welding tool according to claim 3 wherein said driving means is a pneumatic motor.
Claim 7
Dependent Claim
34 words
The welding tool according to claim 2 wherein at least one of said rotatable elements is pivotally mounted and is provided with a spring for resiliently biasing said element against its oppositely paired element.
Claim 8
Dependent Claim
40 words
A welding tool according to claim 1 wherein said means for supporting said electrode includes at least one guide member located in said casing opposite said opening and maintaining said electrode in a defined pair with respect to said opening.
Claim 9
Dependent Claim
21 words
The weldidng tool according to claim 1 wherein said casing includes an adjustable portion for varying the size of said opening.
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) | 1978-05-05 | 1978-11-04 | 1979-05-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-05-05 | 1982-11-04 | 1983-05-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-05-05 | 1986-11-04 | 1987-05-06 | $7700.00 | Window Closed / Lapsed |