Electrical actuator for valve or other device
AssigneeEureka Technologies Ltd.
InventorAvraham Shekalim
Life of this patent
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Abstract
An electrical actuator for actuating a valve or other device includes an electrical motor rotating a rotary member and centrifugal body. The centrifugal body is mounted to the rotary member and is biased to normally assume an inner position with respect to the rotary axis of the rotary member, and to move to an outer position by centrifugal force when the rotary member rotates. An actuator pin is normally biased to a non-actuating position but is movable to an actuating position, to actuate a valve or other device, when the centrifugal body is moved to its outer position by centrifugal force upon the rotation of the rotary member by the electric motor.
Claims15
An electrical actuator for actuating a valve or other device, comprising:
- an electrical motor having a rotary shaft;
- a rotary member coupled to said rotary shaft so as to be rotated thereby;
- a centrifugal body movably mounted to said rotary member and biassed so as normally to assume an inner position with respect to the rotary axis of the rotary member, and to move to an outer position by centrifugal force when the rotary member rotates;
- an actuator pin normally biassed by a non-actuating position but movable to an actuating position;
- a housing enclosing said rotary member and centrifugal body and open at one end;
- a diaphragm seal closing said open end of the housing and displaceable outwardly with respect to said housing when the actuator pin is moved to its actuating position;
- and coupling means between said centrifugal body and said actuator pin for actuating said actuator pin to its actuating position, and thereby for displacing said diaphragm outwardly with respect to said housing, when the centrifugal body is moved to its outer position by centrifugal force upon the rotation of said rotary member by said electric motor.
An electrical actuator for actuating a valve or other device, comprising:
- an electrical motor having a rotary shaft;
- a rotary member coupled to said rotary shaft so as to be rotated thereby;
- a centrifugal body movably mounted to said rotary member and biassed so as normally to assume an inner position with respect to the rotary axis of the rotary member, and to move to an outer position by centrifugal force when the rotary member rotates;
- an actuator member normally biassed to a non-actuating position but movable to an actuating position;
- coupling means between said centrifugal body and said actuator member for actuating said actuator member to its actuating position when the centrifugal body is moved to its outer position by centrifugal force upon the rotation of said rotary member by said electric motor;
- and an extension-retraction mechanism cooperable with said actuator member for sequentially extending and retracting said actuator member after each actuation thereof and for retaining it in the respective position until the next actuation thereof.
Dependencies are inferred from the claim text.