US PATENT SUBCLASS 188 / 72.3
.~.~.~ And means for retracting brake element

Current as of: June, 1999
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188 /   HD   BRAKES

*  DD  WHEEL {10}
71.1  DF  .~ Axially movable brake element or housing therefor {8}
72.1  DF  .~.~ With means for actuating brake element {5}
72.3.~.~.~ And means for retracting brake element

DEFINITION

Classification: 188/72.3

(under subclass 72.1) Apparatus further provided with mechanism to withdraw said component away from contact with said rotating member.

(1) Note. Most patents in this subclass disclose a resilient element (e.g., coil spring, "Belleville" washer, rubber block) for urging the brake element away from the rotating element. However, positively-acting means (e.g., fluid pressure, mechanical link, etc.), is also disclosed as having that function.

SEE OR SEARCH THIS CLASS, SUBCLASS:

166+, for a spring applied brake with the release mechanism therefor.

216, for the release mechanism to secure the release of a brake when the applying force is removed.

SEE OR SEARCH CLASS

192, Clutches and Power-Stop Control, 70.28, for spring means to move a clutch element axially to separate engaged clutch elements.