Actuator seal assembly
AssigneeEx-Cell-O Corporation
InventorRoland J. Barlow
Life of this patent
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Abstract
A seal assembly utilizing a floating seat principle in a fluid powered rotary actuator to seal the arcuate surfaces and the planar ends of the actuator. The seal incorporates a two piece retainer design with a peripheral O-ring and cap ring combining with a captured O-ring and shoulder bolt which give the additional sealing and floating principle to assure effective sealing of the pressure chambers.
Claims6
In a rotary actuator device consisting of a housing with internal arcuate surfaces, cover plates affixed to said housing, an actuator stop means and an actuator shaft and vane means having a seal means comprising a seal carrier means shaped to closely fit between said cover plates and between said actuator shaft and arcuate surface of said housing;
- a first O-ring and glide ring located in a channel on said seal carrier means with a seal retainer fixedly held on one side of said carrier means
- a second O-ring captively retained in a counterbore in said seal carrier means on a remaining opposite side of said carrier means;
- and
- a holding means affixing said seal means to one side of said actuator vane said actuator stop means also including a seal means.
Dependencies are inferred from the claim text.