US PATENT SUBCLASS 73 / 12.07
.~.~ By hydraulic or pneumatic forces

Current as of: June, 1999
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73 /   HD   MEASURING AND TESTING

12.01  DF  TESTING BY IMPACT OR SHOCK {5}
12.04  DF  .~ Accelerated or decelerated specimen (e.g., propelled or dropped specimen support carriage) {3}
12.07.~.~ By hydraulic or pneumatic forces

DEFINITION

Classification: 73/12.07

By hydraulic or pneumatic forces:

(under subclass 12.04) Subject matter wherein the change in velocity of the specimen is caused by either (a) liquid pressure or (b) air pressure.

SEE OR SEARCH THIS CLASS, SUBCLASS:

82, for hydraulically driven impact-type hardness testing.

167, for other types of testing of projectiles.

760+, for applying a load to a specimen by hydraulic or pneumatic loading means in order to test for stress or strain.

865.3, for testing by imparting motion to a specimen.

SEE OR SEARCH CLASS

124, Mechanical Guns and Projectors, 73, for fluid pressure actuated guns and projectors.

251, Valves and Valve Actuation, appropriate subclass for valve and fluid actuated valves, per se.

406, Conveyors: Fluid Current, appropriate subclass for a fluid current conveyor, per se.