US PATENT SUBCLASS 192 / 52.1
.~ Progressive engagement

Current as of: June, 1999
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192 /   HD   CLUTCHES AND POWER-STOP CONTROL

30 R  DF  CLUTCHES {15}
52.1.~ Progressive engagement {4}
52.2  DF  .~.~> Surface area {1}
52.4  DF  .~.~> Variable force {1}
52.6  DF  .~.~> Yielding
53.1  DF  .~.~> Frictional and positive {5}

DEFINITION

Classification: 192/52.1

Progressive engagement:

(under subclass 30) Subject matter wherein means are provided specifically to cause clutch elements to engage gradually.

SEE OR SEARCH THIS CLASS, SUBCLASS:

48.7, for an arrangement of two or more clutch-assemblages that engage (or disengage) progressively or in succession, thus transmitting (or releasing) torque progressively from an input shaft to an output shaft.

70.21, for a multiple-element clutch wherein the elements engage (or disengage) sequentially.