Electricity: electrical systems and devices – Control circuits for electromagnetic devices – For relays or solenoids
Patent
1987-04-16
1988-05-24
Hix, L. T.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
For relays or solenoids
335177, 335181, H01H 924, H01H 4704
Patent
active
047470100
ABSTRACT:
A bi-stable magnetically latched electromagnetic device has an E-shaped frame, a rocker-type armature spanning the distal ends of the two outer legs of the frame, with the mid-region of the armature being pivotally supported on the distal end of the center leg for reciprocal movement between alternative stable positions, and first and second electrically interconnected helical coils each encircling a magnetizable core in a different one of the two interleg spaces of the frame. First and second permanent magnets are disposed between the base of the frame and the first and second coils, respectively, and first and second magnetic flux diverters are interposed between the respectively associated coils and magnets. The coils are connected to relatively positive and negative control power terminals via selectively operative means for providing alternative first and second current paths. When the first path is effective, a strong magnetic field in the first coil aids the field of the first magnet and attracts the armature to a first of its two positions, while a weaker field in the second coil opposes the field of the second magnet, thereby causing the latter field to shift from the armature to the second diverter and, in the process, to release the armature for movement to its first position. To move the armature from the first position, the strong field is created in the second coil and the weak opposing field is created in the first coil.
REFERENCES:
patent: 2564246 (1951-08-01), Bourne
patent: 3001049 (1961-09-01), Didier
patent: 3621419 (1971-11-01), Adams et al.
patent: 3693122 (1972-09-01), Willard
patent: 4072918 (1978-02-01), Read, Jr.
patent: 4286244 (1981-08-01), Schuessler et al.
General Electric Company
Hix L. T,.
Porterfield David
Richardson, Jr. A. S.
LandOfFree
Bi-stable electromagnetic device does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Bi-stable electromagnetic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Bi-stable electromagnetic device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1062146