.~ Bypassing between expanding chamber and closed or throttled contracting chamber (e.g., cushioning) (23)
DEFINITION
Classification: 91/399
(under subclass 392) Apparatus wherein the motor is provided with opposed expansible chambers, i.e., one of which contracts as the other expands and vice versa, and in which in response to motor position a passage interconnecting the two chambers is opened and at that time the contracting chamber is otherwise closed or the outlet therefrom is otherwise restricted.
(1) Note. The purpose of the by-pass is ordinarily for cushioning by the passage of motive fluid from the expanding chamber to the closed contracting chamber to act on the opposed working member face.
SEE OR SEARCH THIS CLASS, SUBCLASS:
23, for expansible chamber motors in which motive fluid is supplied to a contracting working chamber by by-passing from an opposed expanding working chamber in response to working member position and additional motive fluid is supplied from a different source. NOTE "PLACEMENT OF PATENTS" IN THE CLASS DEFINITION AND THE PARAGRAPH FOLLOWING THE TITLE IN THESCHEDULE OF THIS CLASS.
235, for cyclically operable, expansible chamber motors in which motive fluid is constantly applied to one working chamber and is by-passed therefrom to an opposed working chamber in response to position of the working member.
416, for differential, expansible chamber motors in which motive fluid is supplied to one working chamber by by-passing
