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US Patent: 4,028,756
Hand Tool for Working Electrical Connectors
Luis R. Couto - Elizabeth, NJ

USPTO Classifications:
140/106, 30/90.1, 7/107, 7/130, 7/133, 72/409.01, D8/58

Tool Categories:

Thomas & Betts Corporation - Elizabeth, NJ

Not known to have been produced

none listed

Patent Dates:
Applied: Apr. 09, 1975
Granted: Jun. 14, 1977

Patent Pictures:
USPTO pdf tiff
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David Teschner & Jesse Woldman -patent attorneys


The disclosure is directed to a hand tool of the pliers configuration having a set of crimping nests located in jaw members and having the expansion zones of the crimping nests overlap so as to permit placement of each of the nests closer to the optimum distance from the handle pivot. A visual indicator permits the operator to crimp terminals of different discrete sizes in a single one of the crimping nests and a hook member used to lock the handles in a closed position further provides discrete limits of crimping nest closure. A compression spring located in overlapping slots of the handle member provides a recessed means to rapidly open the handles when the hook member is released. Discretely sized insulation cutting edges located between the pivot and the handle free ends permits the edges to overlap one another and thus provide an almost complete cut about the wire periphery and provide a wedge to break through the uncut land of insulation

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