.~.~ Adjustable stroke pump piston, pulsator or follower
DEFINITION
Classification: 222/309
(under subclass 282) Dispensers in which a pump, piston, pulsator or follower is caused to move through a chamber to eject or force material the volume delivered being varied by adjusting a stop means which limits the motion of the forcing device or the position of the ejecting means with reference to a stationary stop.
(1) Note. There may be plural spaced stops selectively movable to operative position, which plural stops may, in addition, be individually adjustable, or there may be a single adjustable stop means. Such stop means may be carried
or supported in any way to perform their function, as on the frame, container, or movable forcer element.
SEE OR SEARCH THIS CLASS, SUBCLASS:
250, for discharge volume varying means including adjustable stop, for floating pistons having plural or alternate discharge.
SEE OR SEARCH CLASS
73, Measuring and Testing, 429, for measuring vessels having adjustable bottoms but in which the bottom is not adapted to force the material from the container.
92, Expansible Chamber Devices,
13+, for stroke adjusting means for expansible chamber devices.
