US PATENT SUBCLASS 251 / 289
VALVE ACTUABLE FROM PLURAL POSITIONS


Current as of: June, 1999
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251 /   HD   VALVES AND VALVE ACTUATION

289VALVE ACTUABLE FROM PLURAL POSITIONS


DEFINITION

Classification: 251/289

(under the class definition) Subject matter wherein the valve is provided with means so that it may be actuated from any of a plurality of positions, the plural possibilities existing at the same time.

(1) Note. An example of such an arrangement is one wherein a valve under the floor of a railroad car is arranged with a long actuator so that it may be actuated from either side of the car.

(2) Note. See the class definition of Class 137, section 4, for search notes on plural actuators in this class.

SEE OR SEARCH THIS CLASS, SUBCLASS:

66+, for trip actuated valves.

235, for levers with swiveled mountings which permit actuation from plural positions.

290, for devices in which the actuator mounting may be shifted with reference to the valve so that it is accessible from different positions to perform the same operation, only one position being available at any given adjustment.

293, wherein an extension is attached to the valve handle, and wherein the valve may be actuated by the handle, as well as by the extension.

SEE OR SEARCH CLASS

137, Fluid Handling,

65+, for biased trip controlled valves, in which the trip actuator and the manual or other reset means are actuated from different positions.