Geometrical instruments
Patent
1979-12-05
1982-05-04
McQuade, John
Geometrical instruments
339 95R, H01R 436
Patent
active
043279570
ABSTRACT:
An electrical connector for use with a stranded conductor cable includes a metallic terminal lug body having a longitudinally extending conductor bore hole extending from end to end thereof and having an attachment tang extending from one end of the body and parallel to the axis of the bore. The body includes a threaded bore extending from the upper surface, perpendicular to and into the conductor bore hole. The bottom of the threaded bore is coterminous with an undercut relief portion extending further into the conductor bore hole in the body of the terminal lug. A setscrew which includes a conically shaped conductor interface area and which is of the same alloy and material as the terminal body is received within the threaded bore for engaging the conductor strands in high contact pressure relationship therewith. The contact pressure results in moving and wiping of the conductor strands against each other, and against the conductor bore hole and the setscrew which removes oxidation from the strand surfaces. The contact pressure also results in a cold flow and deformation of a portion of the cable strands into the undercut relief which further locks the cable into the terminal body and provides a lower resistance electrical connection.
REFERENCES:
patent: 2015144 (1935-09-01), Hoover
patent: 2083923 (1937-06-01), Rowe
patent: 3426319 (1969-02-01), Downs et al.
patent: 3760341 (1973-09-01), Grad
patent: 4146290 (1979-03-01), Annas et al.
Cooper, Jr. James J.
Hornung Elmer H.
Reinhardt William C.
International Telephone and Telegraph Corporation
McQuade John
Michals William J.
Raden James B.
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