US3672655A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire feeder
Assignee: Individual
•
Filing: 1970-03-12
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Granted: 1972-06-27
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Expires: 1990-03-12
Abstract
Abstract A wire feeder including a frame which supports three pairs of rotatably mounted drive rolls in a position to pass wire in a substantially straight line between the pairs of rolls and means connected to each of the rolls of each of said pairs of rolls for driving each of said rolls at the same speed. The drive rolls are grooved with sidewalls contacting at an angle of 100* to 150* and at least one drive roll in each pair of rolls can be provided with biasing means for urging the roll towards its coacting drive roll to impart a driving pressure to the wire between the pair of rolls.
Inventors
- 👤 Kenneth G Carter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 08:59
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/12; B23K9/133; B23K9/1336; B65; B65H; B65H51/00; B65H51/02; B65H51/04; B65H51/08; B65H51/10
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
Apparatus for feeding wire which comprises a support frame: three pairs of drive rolls rotatably mounted to said support frame to exert a predetermined pressure on the wire when said wire is positioned between said pairs of drive rolls, said rolls mounted so that wire passes between said rolls in a substantially straight line; a wire driving groove which comprises two substantially plane sidewalls which contact each other at an angle of 100* to 150* positioned about the peripheral, smooth surface of each drive roll; a drive gear attached to an outside face of each of the drive rolls; and drive means coacting with each said drive gear for rotating said drive roll at a synchronized speed.
Claim 2
Dependent Claim
117 words
Apparatus for feeding wire which comprises a support frame: three pairs of drive rolls rotatably mounted to said support frame to exert a predetermined pressure on the wire when said wire is positioned between said pairs of drive rolls, said rolls mounted so that wire passes between said rolls in a substantially straight line; a wire driving groove which comprises two substantially plane sidewalls which contact each other at an angle of 100* to 150* positioned about the peripheral, smooth surface of each drive roll; a drive gear attached to an outside face of each of the drive rolls; and drive means coacting with each said drive gear for rotating said drive roll at a synchronized speed.
Claim 3
Dependent Claim
43 words
The wire feeding apparatus of claim 1 wherein said drive means includes a synchronizing gear rotatably mounted on said support frame which coacts with the drive gears attached to said drive rolls for driving each of sAid drive gears at the same speed.
Claim 4
Dependent Claim
50 words
The wire feeding apparatus of claim 1 wherein biasing means are attached to at least one roll in each pair of rolls for urging said one roll in each pair of rolls against the other roll in said each pair of rolls to place said predetermined pressure on said wire.
Claim 5
Dependent Claim
43 words
The wire feeding apparatus of claim 3 wherein said drive means includes a synchronizing gear rotatably mounted on said support frame which coacts with the drive gears attached to said drive rolls for driving each of said drive gears at the same speed.
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) | 1975-06-27 | 1975-12-27 | 1976-06-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-06-27 | 1979-12-27 | 1980-06-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-06-27 | 1983-12-27 | 1984-06-27 | $7700.00 | Window Closed / Lapsed |