US3916147A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for electrically heating and inserting a repair wire
Assignee: ANTHONY BRUCE E
•
Filing: 1974-03-25
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Granted: 1975-10-28
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Expires: 1994-03-25
Abstract
Abstract An apparatus for repairing plastic eyeglass frames for use in a repair process wherein a U-shaped repair wire is electrically heated and then pressed into the frame across a break to become embedded therein. The apparatus includes a handpiece from which a pair of electrically conducitive friction grips extend. The forward end of each of the friction grips has spaced wire engaging means to receive the legs of the repair wire in electrically conductive engagement. The wire engaging means of each friction grip includes a flange extending transversely of the grip and having an opening to receive the leg of the wire and a rearwardly extending flange adapted to frictionally engage the portion of the wire extending through and beyond the opening in the flange. A transformer is connected in circuit with the grips with the power controlled by a switch in the hand piece.
Inventors
- 👤 William E Mercer
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 04:31
CPC Classifications
B; B29; B29C; B29C66/00; B29C66/80; B29C66/84; B29C66/861; B29C65/00; B29C65/02; B29C65/44; B29C66/70; B29C66/74; B29C66/742; B29C66/83; B29C66/832; B29C66/8322; B29C73/00; B29C73/04; B29D; B29D12/00; B29D12/02; G; G02; G02C; G02C13/00; G02C13/001; H; H05; H05B; H05B3/00; B29C66/40; B29C66/47; B29C66/474; B29L; B29L2012/00; B29L2012/005; Y; Y10; Y10T; Y10T83/00; Y10T83/283; Y10T83/293
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
191 words
Apparatus for heating and inserting a repair wire having a web and two legs extending in a common direction from the web into a heat-softenable plastic body in the process of repairing a discontinuity in the form of a break or crack in the heatsoftenable plastic body, said apparatus comprising a hand piece, two electrically conductive friction grips extending forwardly from said hand piece, the forward ends of said grips forming spaced, wire-engaging means to receive in electrically conductive engagement the legs of the wire, the wire-engaging means of each of said friction grips having a flange extending transversely of the respective friction grip and having an opening therein to receive a leg of the repair wire, each of said flanges having its extremity bent to form a rearwardly extending flange adapted to frictionally engage the portion of the wire leg extending through and beyond the opening in the respective transversely extending flange, power supply means, conductor means extending through said hand piece and connecting said friction grips with said power supply means, and a switch associated with said conductor means for controlling the supply of power to said friction grips.
Claim 2
Dependent Claim
191 words
Apparatus for heating and inserting a repair wire having a web and two legs extending in a common direction from the web into a heat-softenable plastic body in the process of repairing a discontinuity in the form of a break or crack in the heatsoftenable plastic body, said apparatus comprising a hand piece, two electrically conductive friction grips extending forwardly from said hand piece, the forward ends of said grips forming spaced, wire-engaging means to receive in electrically conductive engagement the legs of the wire, the wire-engaging means of each of said friction grips having a flange extending transversely of the respective friction grip and having an opening therein to receive a leg of the repair wire, each of said flanges having its extremity bent to form a rearwardly extending flange adapted to frictionally engage the portion of the wire leg extending through and beyond the opening in the respective transversely extending flange, power supply means, conductor means extending through said hand piece and connecting said friction grips with said power supply means, and a switch associated with said conductor means for controlling the supply of power to said friction grips.
Claim 3
Dependent Claim
19 words
Apparatus according to claim 1 characterized by said switch being a manual pressure-responsive switch carried by said hand piece.
Claim 4
Dependent Claim
198 words
Apparatus for heating and inserting a repair wire having a web and two legs extending in a common direction from said web into a heat-softenable plastic body in the process of repairing a discontinuity in the form of a break or crack in the heat-softenable plastic body, said apparatus comprising a transformer, a hand piece having an outer surface of a nonheatconducting material, two electrically conductive friction grips extending forwardly from the front end of said hand piece, the forward ends of said friction grips having spaced, wire-engaging means to receive the legs of the repair wire in electrically conductive engagement, said wire-engaging means of each of said friction grips having a flange extending transversely of the respective friction grip and having an opening therein to receive a leg of the repair wire, each of said flanges having a rearwardly extending flange adapted to frictionally engage the portion of the wire leg extending through and beyond the opening in the respective transversely extending flange, conductor means connecting said friction grips with the output of said transformer, and a switch carried by said hand piece and connected with said conductor means for controlling the power to said friction grips.
Claim 5
Dependent Claim
198 words
Apparatus for heating and inserting a repair wire having a web and two legs extending in a common direction from said web into a heat-softenable plastic body in the process of repairing a discontinuity in the form of a break or crack in the heat-softenable plastic body, said apparatus comprising a transformer, a hand piece having an outer surface of a nonheatconducting material, two electrically conductive friction grips extending forwardly from the front end of said hand piece, the forward ends of said friction grips having spaced, wire-engaging means to receive the legs of the repair wire in electrically conductive engagement, said wire-engaging means of each of said friction grips having a flange extending transversely of the respective friction grip and having an opening therein to receive a leg of the repair wire, each of said flanges having a rearwardly extending flange adapted to frictionally engage the portion of the wire leg extending through and beyond the opening in the respective transversely extending flange, conductor means connecting said friction grips with the output of said transformer, and a switch carried by said hand piece and connected with said conductor means for controlling the power to said friction grips.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-10-27 | 1979-04-28 | 1979-10-28 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-27 | 1983-04-28 | 1983-10-28 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-27 | 1987-04-28 | 1987-10-28 | $7700.00 | Window Closed / Lapsed |