Electromagnetic regulating device

Details Electromagnetic regulating device Electromagnetic regulating device

2005-11-22

2005-11-22

Donovan, Lincoln (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

C335S220000, C335S179000, C123S090110

Reexamination Certificate

active

06967550

ABSTRACT:
An electromagnetic regulating device with a movable actuator (42), especially a piston, having an engagement region (44) on an end thereof, and a coil device (34, 36), which is stationary relative to the actuator and which is designed to exert a force on the actuator. The electromagnetic regulating device is provided with permanent magnet means, through which the actuator (42) is held to the coil device (34, 36) in the inactive state of the coil device (34, 36) and wherein when current is applied to the coil device (34, 36), the actuator (42) is released from the coil device (34, 36), overcoming a retaining force of the permanent magnet means.

REFERENCES:
patent: 2915681 (1959-12-01), Troy
patent: 4470030 (1984-09-01), Myers
patent: 5546063 (1996-08-01), Hoffman
patent: 5983847 (1999-11-01), Miyoshi et al.
patent: 5996628 (1999-12-01), Najmolhoda et al.
patent: 34 23 469 (1986-01-01), None
patent: 197 22 013 (1998-12-01), None
patent: 197 56 017 (1999-06-01), None
“Fast-Acting Long-Stroke Bistable Solenoids with Moving Permanent Magnets”,IEEE Transactions on Industry Applications, vol. 26, No. 3, May-Jun. 1990.

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