Electric actuators

Details Electric actuators Electric actuators

F - Mech Eng,Light,Heat,Weapons

03

G

185/16, 188/20

F03G 1/08 (2006.01) B60T 8/18 (2006.01) B60T 8/26 (2006.01) B60T 13/74 (2006.01) B60T 17/16 (2006.01) B61H 1/00 (2006.01) B61H 5/00 (2006.01) B61H 15/00 (2006.01) F16D 55/224 (2006.01) F16D 65/14 (2006.01) F16D 65/54 (2006.01) F16D 66/00 (2006.01) F16D 65/34 (2006.01)

Patent

CA 1228305

Abstract: An electric actuator having an output member movable from a first variable position to a second variable position; an electric motor operable to control a spring system to exert an output force on the output member when in its second position; means for generating an electrical signal when the output member is about to leave the second position as it returns to the first position; and a motor-control electrical circuit which recognizes the generation of the electrical signal and thereafter operates the electric motor to a pre-determined degree to move the output member a corresponding pre-determined distance back to the first position so that there is preserved a substantially constant distance between the first and second positions.

454108

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