Electricity: magnetically operated switches – magnets – and electr – Electromagnetically actuated switches – Latching means
Patent
1985-10-11
1986-12-09
Goldberg, E. A.
Electricity: magnetically operated switches, magnets, and electr
Electromagnetically actuated switches
Latching means
335157, 335164, 335167, 335253, H01H 920
Patent
active
046282890
ABSTRACT:
A latching relay includes a housing and a coil secured to the housing. An armature is electromagnetically coupled to the coil such that current to the coil biases the armature to a first position. A spring is coupled to the armature to bias the armature to a second position. The relay includes a switch which includes a movable contact coupled to the armature such that the switch is in a first state when the armature is in the first position and the switch is in a second state when the armature is in the second position. A magnet is movable in the housing between a blocking position, in which the magnet acts as a mechanical block to prevent the armature from moving to the second position, and an unblocking position, in which the magnet allows the armature to move to the second position. The magnet is electromagnetically coupled to the coil such that current through the coil in a first direction moves the magnet to the blocking position and current through the coil in a second direction moves the magnet to the unblocking position.
REFERENCES:
patent: 2916584 (1957-05-01), Molyneux
patent: 3304444 (1967-02-01), Smith
patent: 3569878 (1971-03-01), Grass
patent: 3914723 (1975-10-01), Goodbar
patent: 3984795 (1976-10-01), Gaskill
patent: 4150348 (1979-04-01), Foltz
patent: 4332450 (1982-06-01), Griffith
patent: 4383234 (1983-05-01), Yatsushiro et al.
Donovan Lincoln D.
Goldberg E. A.
Nuvatec, Inc.
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