The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Date of Patent:
Aug. 28, 1984

Filed:

May. 02, 1983
Applicant:
Inventors:

Clifford L Galloup, Reed City, MI (US);

Roger M Bula, Big Rapids, MI (US);

Assignee:

Cooper Industries, Inc., Houston, TX (US);

Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
B21F / ;
U.S. Cl.
CPC ...
140124 ; 242-717 ;
Abstract

A device for stripping insulation from magnet wire and wrapping the stripped wire around a terminal in a series of helical convolutions is described. The device includes the normal rotatable wrapping bit having a wire receiving groove disposed on the periphery of the bit, this groove being radially offset from a terminal receiving bore in the bit. The device includes a fixed sleeve surrounding the bit with a wire receiving slot extending outwardly therefrom. It has a hooked shaped insulation stripping edge positioned transversely of the wire path and being radially positioned inwardly from the groove. The stripping edge is angularly positioned between the groove and the wire receiving slot, this angular position controlling the tension of the magnet wire as it moves over the hook, this tension being sufficiently great to create a concentrated force at the junction between the insulation and the gripping edge so as to strip a limited portion of the insulation from the inner surface of the wire which is to be placed over the terminal by the wrapping tool, this stripping and wrapping taking place essentially simultaneously. The device is particularly adapted for stripping tenacious film insulation from magnet wire.


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