Disconnect switch

Details Disconnect switch Disconnect switch

1978-03-09

1981-02-17

Scott, James R.

Electricity: circuit makers and breakers

Liquid contact

Time delay

200260, 200293, H01H 3312

Patent

active

042517001

ABSTRACT:
A disconnect switch includes a crossbar assembly having an arm at each of its ends which rotatably fastens the assembly to a frame for swinging motion around a pivot axis. Three movable contact assemblies are carried by the crossbar between a closed position in which their line side ends engage stationary contacts and an opened position in which their line side ends are disengaged. Stationary connectors aligned along the pivot axis engage the load side ends of the movable contact assemblies at all positions of the crossbar.

REFERENCES:
patent: 2281052 (1942-04-01), Samzelius
patent: 2325697 (1943-08-01), Millermaster et al.
patent: 3180963 (1965-04-01), Hales et al.
patent: 3496319 (1970-02-01), Norden
patent: 3632935 (1972-01-01), Stegmaier
patent: 3684849 (1972-08-01), Zubaty
patent: 3840717 (1974-10-01), Pekrul et al.
patent: 3949333 (1976-04-01), Freitag et al.
patent: 3958095 (1976-05-01), Zaffrann et al.
patent: 3959615 (1976-05-01), Zaffrann, Jr. et al.

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