US PATENT SUBCLASS 303 / 28
AUTOMATIC

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


303 /   HD   FLUID-PRESSURE AND ANALOGOUS BRAKE SYSTEMS

28AUTOMATIC {13}
29  DF  .~> Supplementary control pipe
30  DF  .~> Supplementary reservoir pipe
31  DF  .~> Vacuum
32  DF  .~> Equilibrium
33  DF  .~> Equalizing valves {1}
35  DF  .~> Synchronizing {2}
40  DF  .~> Application valve
41  DF  .~> Preliminary valve movement {1}
43  DF  .~> Slow-reduction emergency
44  DF  .~> Secondary service operation
45  DF  .~> Positive-movement equalizing valve
46  DF  .~> Augmented feed to motor
47  DF  .~> Train rear end first

DEFINITION

Classification: 303/28

Fluid from a local source is supplied to a motor by means of a valve operated in response to a change in pressure of the fluid in the control-pipe.