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US 4,072,064 AGranted
Anti-backlash gear assembly
AssigneeWestinghouse Electric Corp.
InventorsWayne B. Lloyd, John H. Staehlin
Life of this patent
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Abstract
An anti-backlash gear assembly including an hydraulic piston that automatically maintains clearance-filling positioning of two relatively circumferentially adjustable axial parts of a split gear by receipt of hydraulic fluid from a local accumulator via a fluid-retaining check valve means.
Claims4
An anti-backlash gear assembly comprising,
- mating gears having interengaging teeth for effecting a driving relationship therebetween,
- geartooth clearance adjusting means for said mating gears,
- hydraulic piston means operatively connected to said geartooth clearance adjusting means,
- an accumulator storing hydraulic fluid for supply to said piston means,
- check valve means for retaining hydraulic fluid supplied to said piston means, and
- bias means for urging hydraulic fluid to flow from said accumulator to said piston means via said check valve means upon existence of any backlash-inducing clearance during relaxation of driving effort between said interengaging gear teeth.
3 more elements
Dependencies are inferred from the claim text.