US PATENT SUBCLASS 303 / 115.1
.~.~ System controlled by expansible chamber type modulator

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

121  DF  SPEED-CONTROLLED {44}
113.1  DF  .~ Having a valve system responsive to a wheel lock signal {12}
115.1.~.~ System controlled by expansible chamber type modulator {4}
115.2  DF  .~.~.~> Having electric control
115.3  DF  .~.~.~> Having vacuum motor control
115.4  DF  .~.~.~> Having pump pressure control {1}
115.6  DF  .~.~.~> Including flywheel control (e.g., motorcycle type)

DEFINITION

Classification: 303/115.1

System controlled by expansible chamber type modulator:

(under subclass 113.1) Structure wherein the fluid pressure regulator includes a variable volume reactive device (e.g., piston and cylinder, bellows type) having a motive fluid valve to regulate the pressure of the braking fluid.

SEE OR SEARCH CLASS

91, Motors: Expansible Chamber Type,

439, for a motor having opposed working chambers and a by-pass therebetween independently controlled by valve means.

137, Fluid Handling,

625.27, for a reciprocating supply and exhaust multi-way valve unit of the plural disc or plug type and subclass 625.25 for a motor operated supply and exhaust multi-way valve unit.

251, Valves and Valve Actuation, 25, for a fluid actuated or retarded pilot or servo type motor and subclass 61.3 for a valve between a coaxial spring biasing means and a fluid actuated flexible wall valve actuator.