(under subclass 565.17) Subject matter comprising a fluid reservoir, a pump for withdrawing fluid from the reservoir, or further including one or more selector valves together with a fluid motor to supply high pressure fluid to another device. [figure] [caption]Figure 1: A typical example of the subject matter. A - Well casing; B - Impulse actuated pump; C - Hydraulic cylinder; D - Accumulator (load compensating reservoir); E - Housing; F - Liquid storage tank; G - One-way valve.
SEE OR SEARCH CLASS
60, Power Plants,
413+, for controlling the structure storing the work driving energy such as an accumulator.
91, Motors: Expansible Chamber Type,
418+, for a hydraulic motor with a motive fluid valve.
222, Dispensing,
383.1+, for a container mounted pump or pulsator. 417, Pumps,
287, for controlling the pumped fluid of the plural diverse capacity pump units and subclasses 440+ for an expansible chamber-type pump including a bypass valve for control of pumped fluid.
