Electric heating – Metal heating – By arc
Patent
1974-12-04
1976-04-27
Truhe, J. V.
Electric heating
Metal heating
By arc
350 6, 81 95R, B73K 2700
Patent
active
039537064
ABSTRACT:
A device for enabling the stripping of a selected portion of the insulation from an electrical lead on a rapid basis without damage to the conductor portion of the lead, involving the use of a rotatable optical unit. Our novel optical unit is equipped with an aperture at each end, with a first of these apertures being configured to selectively receive a variety of types of electrical leads whose ends are to be stripped of insulation for a certain length, and the second aperture being arranged to receive output energy from an adjacently located laser operating at a wavelength and power level such as will cause ablation of insulation at the specified location on the electrical lead. These apertures are located on the axis of rotation of the optical unit, and optical components are utilized in the unit such as will direct and focus a laser beam at essentially right angles to a nonrotating lead inserted through the first aperture. As a result of the rotation of the optical unit, a circumferential cut may be made in the insulation of the electrical lead at the location selected by the user, thus enabling the removal of such selected portion of the insulation from the conductor or conductors of the lead. Our novel optical unit can also be utilized in a nonrotating mode as will enable a longitudinal cut to be made in an electrical lead as it is being withdrawn from the unit, or in a mode involving a withdrawal of the lead during slow rotation of the unit, thus enabling a helical cut of a type particularly desirable in the removal of insulation from a twisted lead.
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"High-Energy Arc Wire Insulation Removal Tool" by Desautels and Schick, IBM Technical Disclosure, Vol. 13, pp. 37-56, 1971.
"Triple Twist Wire Preparation by Co.sub.2 Laser" by Haas, IBM Technical Disclosure, Vol. 13, p. 3794, 1971.
Harris Charles W.
Howle Robert E.
Layton Allen C.
Chin Gay
Martin Marietta Corporation
Peterson G. R.
Renfro Julian C.
Truhe J. V.
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