.~> Reversal responsive to motive fluid pressure change
DEFINITION
Classification: 91/355
(under the class definition) Apparatus in which the working member of the motor operates from a given position through a forward stroke and a return stroke to the starting position, the motor having control means which when operated causes the working member to move through the forward and return stroke and then stop even though the control means is maintained in the operated position.
SEE OR SEARCH THIS CLASS, SUBCLASS:
2, for control means which stops or modifies the action of a motor after a predetermined number of cycles of the working member greater than one.
218+, for motors in which the working members operates through more than one cycle. Patents disclosing motors having control means which when operated, but immediately released, will cause one cycle of movement of the working member and which are also capable of operating in a cyclic manner as long as the control means is operated have been placed in subclasses 218+ even though the cyclic mode of operation has not been specifically described therein.
