Electro-magnetic device

Details Electro-magnetic device Electro-magnetic device

1993-09-13

1995-03-28

Donovan, Lincoln

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

With magneto-mechanical motive device

335177, H01F 718

Patent

active

054020921

ABSTRACT:
An electro-magnetically operable device 12 for a circuit breaker 10 comprises a coil 13 that defines a cavity. A first plunger 14 and a second plunger 16 are located within the cavity, adjacent one another. The first plunger 14 is housed in a sealed canister 18 which is filled with a damping liquid. The plunger 14 is displaceable within the canister 18 in a damped manner. The second plunger 16 is also displaceable within the cavity and movement thereof is guided by an open tube 20. The first plunger 14 and the second plunger 16 are urged away from a pole piece 30 of the device 12 via helical springs 32 and 34, respectively.

REFERENCES:
patent: 1636953 (1927-07-01), Dreyer
patent: 2486613 (1949-11-01), Ridgley
patent: 2661451 (1953-12-01), Tamm

Affiliated with

Also associated with

Rating

Electro-magnetic 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 Electro-magnetic device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Electro-magnetic device will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2253504