(under subclass 22.1) Subject matter including a feature which functions when the distribution of fluid ceases to occur properly.
SEE OR SEARCH THIS CLASS, SUBCLASS:
84.1+, for flow retarders and isolation valves which interrupt the fluid flow usually upon the failure of some part of the system.
SEE OR SEARCH CLASS
188, Brakes,
151+, for fluid pressure operated brakes often having safety devices.
200, Electricity: Circuit Makers and Breakers,
82+, for a fluid pressure piston which is used as an operator to open of close a circuit and often used in an automobile. 340, Communication: Electrical,
52+, for means automatically responsive to a condition of a vehicle, e.g., a brake fluid pressure monitor.
