US3999697A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Heli-arc wire feeder
Assignee: Lee Raymond Organization Inc
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Filing: 1975-07-21
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Granted: 1976-12-28
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Expires: 1995-07-21
Abstract
Abstract A loop surrounds the user's index finger, and a movable feeder moves back and forth as the user's finger and thumb are squeezed together and released. A fixed feeder is mounted at the vertex of two springs that bias the loops outwardly, the fixed feeder being located behind the movable feeder. The feeders are so designed that when wire is passed through the feeders, the wire will be advanced forwardly as the fingers are squeezed together and released.
Inventors
- 👤 Gene Hill, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 18:43
CPC Classifications
B; B65; B65H; B65H51/00; B65H51/18; B23; B23K; B23K9/00; B23K9/12; B23K9/133
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
193 words
A device for feeding heli-arc wire to the welded work by movement of the user's thumb and index finger, comprising: an index finger loop for encircling the user's index finger; two outwardly biased springs, one spring being attached at its forward end to the loop, both springs extending inwardly and rearwardly to form a V; a stationary feeder joined at the vertex of the V formed by the springs, the stationary feeder having an axial bore through which heli-arc wire may be passed and acting on the wire to produce a predetermined frictional drag upon wire passed forwardly through it and a larger frictional drag upon wire passed rearwardly through it; a movable feeder located forwardly of the fixed feeder; and two flexible elongated arms, one arm being secured at its forward end to the loop, the other arm being secured at its forward end to the forward end of the corresponding spring, and both arms extending rearward and inwardly to the movable feeder, whereby the movable feeder will be moved rearwardly and forwardly in response to inward and outward motions of the thumb and index finger, with the fixed feeder remaining stationary.
Claim 2
Independent Claim
193 words
A device for feeding heli-arc wire to the welded work by movement of the user's thumb and index finger, comprising: an index finger loop for encircling the user's index finger; two outwardly biased springs, one spring being attached at its forward end to the loop, both springs extending inwardly and rearwardly to form a V; a stationary feeder joined at the vertex of the V formed by the springs, the stationary feeder having an axial bore through which heli-arc wire may be passed and acting on the wire to produce a predetermined frictional drag upon wire passed forwardly through it and a larger frictional drag upon wire passed rearwardly through it; a movable feeder located forwardly of the fixed feeder; and two flexible elongated arms, one arm being secured at its forward end to the loop, the other arm being secured at its forward end to the forward end of the corresponding spring, and both arms extending rearward and inwardly to the movable feeder, whereby the movable feeder will be moved rearwardly and forwardly in response to inward and outward motions of the thumb and index finger, with the fixed feeder remaining stationary.
Claim 3
Dependent Claim
31 words
The device of claim 1 wherein each feeder is cylindrical in shape and has a plurality of like, inwardly biased jaws being circumaxially located around the axial base of the feeder.
Claim 4
Dependent Claim
17 words
The device of claim 2 wherein the loop is of adjustable size to accommodate differently sized fingers.
Claim 5
Dependent Claim
20 words
The device of claim 3 wherein one spring is a leaf spring and the other spring is a wire spring.
References Cited (Backward Citations)
US1851420A
Cited
US3356273A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1979-12-28 | 1980-06-28 | 1980-12-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1983-12-28 | 1984-06-28 | 1984-12-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1987-12-28 | 1988-06-28 | 1988-12-28 | $7700.00 | Window Closed / Lapsed |