US PATENT SUBCLASS 301 / 6.4
.~.~.~ Comprising means to utilize a fluid

Current as of: June, 1999
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301 /   HD   LAND VEHICLES: WHEELS AND AXLES

5.1  DF  WHEEL {21}
6.1  DF  .~ With drive or brake attachment {8}
6.3  DF  .~.~ And with brake-cooling means {1}
6.4.~.~.~ Comprising means to utilize a fluid

DEFINITION

Classification: 301/6.4

Comprising means to utilize a fluid:

(under subclass 6.3) Wheel wherein the provision to reduce the thermal level uses a contained flowable medium such as a gas or liquid to carry heat away from the brake.

(1) Note. A cooling fin intended to transfer heat to passing air does not "contain" a flowable medium and, therefore, is not included herein.