Driving mechanism for switching apparatus with pressure contacts

Details Driving mechanism for switching apparatus with pressure contacts Driving mechanism for switching apparatus with pressure contacts

1978-04-18

1979-05-01

Haroian, Harry N.

Electricity: circuit makers and breakers

Liquid contact

Time delay

H01H 338

Patent

active

041525620

ABSTRACT:
A driving mechanism for use with pressure contacts wherein the mechanism is provided with a drive means for opening and closing the contacts and wherein the drive means undergoes a driving stroke in bringing the contacts to a closed position. The mechanism is further provided with a closing spring means for actuating the drive means to initiate closing of the contacts and a second spring means responsive to the aforesaid actuation of the drive means and which is cocked there during for actuating the first means to initiate opening of the contacts. In accord with the invention, a pressure spring means for applying pressure to the contacts is also provided; the latter pressure spring means being responsive to the drive means and cocked thereby during a substantial portion of the closing driving stroke.

REFERENCES:
patent: 1938408 (1933-12-01), Thumin
patent: 2784270 (1957-03-01), Nisland

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