US PATENT SUBCLASS 355 / 91
.~ Fluid pressure retention of carrier and receiver in exposure position

Current as of: June, 1999
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355 /   HD   PHOTOCOPYING

78  DF  CONTACT PRINTING {15}
91.~ Fluid pressure retention of carrier and receiver in exposure position {3}
92  DF  .~.~> Air-inflated cushion
93  DF  .~.~> Pivoted frame
94  DF  .~.~> With pump

DEFINITION

Classification: 355/91

(under subclass 78) Subject matter wherein contact between the carrier and receiver during exposure is secured by direct acting fluid pressure.

(1) Note. In this subclass a suction is maintained between the pressure applying surfaces or a fluid pressure is applied through a flexible member. Where the pressure is applied through a mechanical linkage actuated by fluid such as a mechanical connected piston, classification is elsewhere in the schedule.