US PATENT SUBCLASS 277 / 357
.~ For rotary piston


Current as of: June, 1999
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277 /   HD   SEAL FOR A JOINT OR JUNCTURE

345  DF  SEAL BETWEEN RELATIVELY MOVABLE PARTS (I.E., DYNAMIC SEAL) {10}
357.~ For rotary piston


DEFINITION

Classification: 277/357

For rotary piston:

(under subclass 345) Dynamic seal wherein the sealing means is for an apparatus having a working chamber formed between relatively rotatable parts to aid in sealing to oppose the flow of fluid.

SEE OR SEARCH THIS CLASS, SUBCLASS:

398, for a relatively rotatable, radially extending, sealing face member (e.g., face, mechanical, etc.) that accommodates or exhibits eccentric, gyratory, or oscillatory motion.

SEE OR SEARCH CLASS

418, Rotary Expansible Chamber Devices,

104+, for a working member having relative rotation to a surface of a working chamber to expand and contract the volume of the working chamber with a movable, expansible, adjustable, or deformable seal.