US PATENT SUBCLASS 188 / 283.1
.~.~ Vortex flow passages
Current as of:
June, 1999
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188 /
HD
BRAKES
266
DF
INTERNAL-RESISTANCE MOTION RETARDER
{29}
283
DF
.~ Piston having a restrictable opening (e.g., apertured plate) in a fixed volume chamber {1}
283.1
.~.~ Vortex flow passages
DEFINITION
Classification: 188/283.1
Vortex flow passages:
(under subclass 283) Piston restrictable opening in which the element is designed to create an outward rotating effect to damp.