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US 6,460,862 B1Granted
Chuck with rotary vane actuator
OwnerTokichi Shimizuinventor
Life of this patent
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OwnerTokichi Shimizuinventor
Estimating the term…
There is provided a chuck having four radial jaw grooves, two pairs of opposed jaws movably provided in the grooves, a first rotary vane actuator for actuating one pair of the opposed jaws, and a second rotary actuator for actuating the other pair of the opposed jaws, an inlet for admitting fluid into chambers of the actuators, and an outlet for discharging fluid from the chambers. The first and second vane actuators are opearated by the fluid admitted from the one inlet such that the two pairs of opposed jaws are differentially actuated by said first and second rotary vane actuators. The first rotary vane actuator includes a first pressure chamber and the second rotary vane actuator includes a second pressure chamber, in which the first and second pressure chambers are in fluid communication via at least one fluid-conducting path.
A chuck having a chuck body defining a front face, four radial jaw grooves provided in said front face, two pairs of opposed jaws slidably provided in said jaw grooves, said chuck comprising:
A chuck having four radial jaw grooves, two pairs of opposed jaws movably provided in said grooves, said chuck comprising:
A chuck having four radial jaw grooves, two pairs of opposed jaws movably provided in said grooves, said chuck comprising:
A chuck having four radial jaw grooves, two pairs of opposed jaws movably provided in said grooves, said chuck comprising:
Dependencies are inferred from the claim text.