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Title: |
US3980861:
Electrically heated miniature thermal implement
[ Derwent Title ]

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Country: |
US United States of America

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Inventor: |
Fukunaga, Akio; Los Angeles, CA 90025

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Assignee: |
None

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Published / Filed: |
1976-09-14
/ 1974-02-04

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Application Number: |
US1974000439562

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IPC Code: |
Advanced:
B26F 3/08;
H02G 1/12;
H05B 3/00;
IPC-7:
H02G 1/12;
H05B 1/00;

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ECLA Code: |
H02G1/12D; H05B3/00; T05B203/030;

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U.S. Class: |
Current:
219/230;
030/140;
081/009.4;
083/171;
219/236;
228/051;
294/099.2;
606/028;
606/039;
606/045;
606/050;
Original:
219/230;
030/140;
081/009.5B;
081/043;
083/171;
128/303.1;
219/236;
228/051;

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Field of Search: |
219/221,223,227-233,235-240
081/9.5 R,9.5 B,9.5 C,9.51,43
083/170,171
030/140
128/303.1,303.14-303.19
228/051-55

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Priority Number: |
| 1974-02-04 |
US1974000439562 |
| 1973-03-26 |
US1973000344945 |

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Abstract: |
A miniature thermal wire stripper having a pair of heater elements in the form of hollow tubes each with a heater coil disposed therein and affixed to a pair of spring loaded handles for contacting and subsequently melting through thermal (e.g. thermoplastic) insulation about a wire from which insulation is to be stripped. A pair of wire stripping clamping members in the form of blades respectively attached to the hollow tubes have semi-circular recesses in the clamping edge thereof. In one embodiment, the circuit for the heater elements is completed through the blades so that the blades are heated only when held together in contact with each other or with the wire being stripped. In another embodiment the implement resembles a pair of tweezers having particularly shaped blades at the operative end which are configured to serve the purpose of the particular function for which the implement is designed. The heater elements are in the form of resistive wires embedded in the respective blades and disposed so as to most effectively develop the desired high temperature at the blade edges. When intended for use as a thermal wire stripper, the blade edges are provided with mating recesses of different sizes near the points of the blades to accommodate various diameters of the wires to be stripped. When designed for use as a surgical implement, the edges of the blades may be configured with appropriate recesses to accommodate particular devices that are to be held and heated for use in a surgical operation or the like.

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Attorney, Agent or Firm: |
Bissell, Henry M. ;

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Primary / Asst. Examiners: |
Bartis, A.;

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INPADOC Legal Status: |
None
Family Legal Status Report

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