Remotely-controlled relay

Details Remotely-controlled relay Remotely-controlled relay

1991-05-22

1993-04-06

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Electromagnetically actuated switches

Automatic circuit-interrupting devices

335 20, H01H 7500

Patent

active

052007235

ABSTRACT:
A remotely controlled relay having a lever and a link, both of which being driven by a bistable polar electromagnet device. The lever drives a switch circuit to open and close while the link operates the main-circuit opening-and-closing assembly. A current is supplied to the coil of the bistable polar magnet device from an external circuit and magnetizes the plunger such that the plunger moves through a stroke between a first and second positions. When the plunger arrives at the center of its stroke while the plunger is moving from the first position to the second position, the lever causes the micro-switch to switch from the a first contact position to a second contact position. When the plunger arrives at the center of plunger stroke while the plunger is moving from the second position to the first position, the lever causes the micro-switch to switch from the second contact position to the first contact position.

REFERENCES:
patent: Re32882 (1989-03-01), Yokoyama et al.
patent: 4623859 (1986-11-01), Erickson et al.
patent: 4897625 (1990-01-01), Yokoyama et al.
patent: 5053735 (1991-10-01), Ohishi et al.

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