US PATENT SUBCLASS 188 / 292
.~.~ Gear pump


Current as of: June, 1999
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188 /   HD   BRAKES

266  DF  INTERNAL-RESISTANCE MOTION RETARDER {29}
290  DF  .~ Using a rotary-type fluid damper {4}
292.~.~ Gear pump


DEFINITION

Classification: 188/292

(under subclass 290) Device wherein said moving mechanism is connected to a gear-like element having teeth on the circumference thereof, said first member is connected to another gear-like element having similar teeth, and the teeth of both elements mesh with each other, whereby as one element turns in one direction the other turns concurrently in an opposite direction.

(1) Note. In many devices of this subclass the elements described above form a "gear pump" in which fluid is caused to flow by reason of the teeth acting as vanes to cause such flow. In other devices the teeth are helicoidal and act as screws to cause relative motion or flow of the fluid. In both exemplary instances flow is restricted to retard motion of the load.