Geometrical instruments
Patent
1979-05-02
1980-07-08
McQuade, John
Geometrical instruments
339 75MP, H01R 13629
Patent
active
042114586
ABSTRACT:
A zero force connector is constructed of a plurality of tiers of jack-like units (16, 17, 23 and 24) which are simultaneously opened and closed by turning a pair of screws made of sets (31 and 32). Each screw set has left and right-hand threads to cooperate with threaded ends (26,27) of the jack units so that all the jack-like units are moved to engage a plurality of tiers of plugs 10 with minimum sliding forces, thus, preventing abrading of precious metal plating on the contacting elements (13, 14, 18 and 19).
REFERENCES:
patent: 3487352 (1969-12-01), Putyato et al.
patent: 3670288 (1972-06-01), Evans
patent: 3963317 (1976-06-01), Eigenbrode et al.
patent: 4047782 (1977-09-01), Yeager
patent: 4068170 (1978-01-01), Chayka et al.
patent: 4072379 (1978-02-01), Towne et al.
patent: 4077688 (1978-03-01), Cobaugh et al.
patent: 4148537 (1979-04-01), Sochor
patent: 4153948 (1979-05-01), Dimyan et al.
McQuade John
Miller R. P.
Western Electric Company, Incorporated
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