US3677309A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Wire forming apparatus
Assignee: Individual
•
Filing: 1970-06-24
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Granted: 1972-07-18
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Expires: 1990-06-24
Abstract
Abstract Apparatus for forming a wire for use in a wire gun in which pairs of rollers are provided to twist the wire in its soft condition beyond its elastic limit prior to heat treating and stress relieving the wire. Additional pairs of rollers are provided to reverse the twist in the wire below the elastic limit of the wire to a flat wire condition for winding into a coil upon a reel having a locking slot. The wire thus formed is subjected to but a single stress below the elastic limit of the wire and the tendency of the wire to fracture is eliminated. The wire has the capacity to store a maximum of torsional energy.
Inventors
- 👤 Andrew J Grandy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 13:59
CPC Classifications
B; B21; B21C; B21C47/00; B21C47/32; B21C47/28; B21F; B21F7/00; B21F99/00; B65; B65H; B65H49/00; B65H49/02; B65H49/04; B65H49/06; B65H49/08; B65H55/00; B65H55/04
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
119 words
An apparatus for forming a wire for use in a wire gun comprising, means for twisting a flattened steel wire to an amount above its elastic limit, means including a heater for removing the torsional stress from said wire without untwisting it, means for applying to said wire a torsional stress below its elastic limit and substantially reflattening the wire, and means for winding the flattened wire into a coil with the inner end of the coil secured against becoming unwound, said means for reflattening the wire including pairs of rolls between which untwisting of the wire is accomplished, said pairs being positioned intermediate said winding means and a reel on which the stress removed twisted wire is wound.
Claim 2
Independent Claim
119 words
An apparatus for forming a wire for use in a wire gun comprising, means for twisting a flattened steel wire to an amount above its elastic limit, means including a heater for removing the torsional stress from said wire without untwisting it, means for applying to said wire a torsional stress below its elastic limit and substantially reflattening the wire, and means for winding the flattened wire into a coil with the inner end of the coil secured against becoming unwound, said means for reflattening the wire including pairs of rolls between which untwisting of the wire is accomplished, said pairs being positioned intermediate said winding means and a reel on which the stress removed twisted wire is wound.
Claim 3
Dependent Claim
22 words
An apparatus according to claim 1 which includes a support for said reel of a type enabling the reel axis to rotate.
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) | 1975-07-18 | 1976-01-17 | 1976-07-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-07-18 | 1980-01-17 | 1980-07-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-07-18 | 1984-01-17 | 1984-07-18 | $7700.00 | Window Closed / Lapsed |