The brake is operated by means of fluid under pressure.
SEE OR SEARCH THIS CLASS, SUBCLASS:
72.4+, for disclosure of a fluid-pressure actuator for a disc-brake assemblage.
SEE OR SEARCH CLASS
60, Power Plants,
533+, for a master-slave actuator system where the load connected to the system is broadly recited. The following terms are considered to indicate a merely nominal load and do not preclude classification in Class 60. a. Wheel cylinder b. Brake means c. Brake cylinders d. Hydraulic vehicle brakes e. Disc brakes f. Brakes g. Front and/or rear wheel brakes h. Dual brakes.
92, Expansible Chamber Devices, appropriate subclasses for expansible chamber devices, per se, even though disclosed as means to operate a brake.
303, Fluid-Pressure and Analogous Brake Systems, appropriate subclasses for systems of distribution of fluid to motors of more general application, particularly 84.2, for a safety valve which isolates a failed circuit.
