US PATENT SUBCLASS 464 / 24
FLUID COUPLING

Current as of: June, 1999
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464 /   HD   ROTARY SHAFTS, GUDGEONS, HOUSINGS, AND FLEXIBLE COUPLINGS FOR ROTARY SHAFTS

24FLUID COUPLING {4}
25  DF  .~> For transmitting limited pulsating torque (e.g., fluid drive coupling for impulse tool)
26  DF  .~> Including piston axially movable in cylinder having axis coextensive with axis of rotation of coupled members
27  DF  .~> Including multiple piston-cylinder devices radially spaced from axis of rotation
28  DF  .~> Fluid confined in enclosure having flexible walls

DEFINITION

Classification: 464/24

FLUID COUPLING:

(under the class definition) A flexible coupling wherein a liquid or gas is used to affect or effect the coupling.

SEE OR SEARCH CLASS

192, Clutches and Power-Stop Control,

58.1+, wherein a fluent material envelops the coupled parts; subclasses 85+ for a fluid pressure operator for a clutch; and see the reference to Class 192 in the search class notes under the general definition of Class 464 for a statement of the line.