US PATENT SUBCLASS 226 / 22
.~.~.~.~ Responsive to pneumatic detection

Current as of: June, 1999
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226 /   HD   ADVANCING MATERIAL OF INDETERMINATE LENGTH

10  DF  WITH MATERIAL-RESPONSIVE CONTROL MEANS {7}
15  DF  .~ To position material laterally {3}
18  DF  .~.~ By shiftable material support {2}
21  DF  .~.~.~ Pivotally mounted roller {2}
22.~.~.~.~ Responsive to pneumatic detection

DEFINITION

Classification: 226/22

(under subclass 21) Device wherein the detection means senses changes in pressure of a gaseous fluid directed against the material.

SEE OR SEARCH THIS CLASS, SUBCLASS:

23, for a material-responsive machine element control for a pneumatic pressure system.

SEE OR SEARCH CLASS

73, Measuring and Testing,

37.7, for a pneumatic detection means, per se.

137, Fluid Handling, 82+, for pressure modulating relays which may detect traveling material.