US PATENT SUBCLASS 19 / 272
.~.~.~.~ Magnetic, hydraulic, or pneumatic

Current as of: June, 1999
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19 /   HD   TEXTILES: FIBER PREPARATION

65 R  DF  WORKING {8}
236  DF  .~ Drafting {7}
258  DF  .~.~ Roll type {9}
266  DF  .~.~.~ Pressure-applying devices {9}
272.~.~.~.~ Magnetic, hydraulic, or pneumatic

DEFINITION

Classification: 19/272

(under subclass 266) Method or means in which that property of mass (greater than molecular size) being repelled or attracted by an electrical field of force is employed to urge a roll into working cooperation with another roll of a pair, or the roll is urged by a fluid pressure means.

(1) Note. The term fluid pressure is inclusive of air or a liquid pressure.