Pumps – Motor driven – Fluid motor
Patent
1981-07-13
1983-04-26
Smith, Leonard E.
Pumps
Motor driven
Fluid motor
91306, 13762527, F04B 1700
Patent
active
043811809
ABSTRACT:
This invention provides a double-acting, double diaphragm pump particularly for fluids such as chemical compounds. The pump employs adjustable disk members mounted on a reciprocable rod connecting and actuating the diaphragms. These disks alternately engage the extending shaft of a pilot valve to move the valve and redirect the flow of pressurized fluid therethrough. The pressurized fluid behind the diaphragm is now caused to flow to a slide valve and cause it to be moved to an opposite limit. The slide valve is cycled by the pilot valves as the disks on the reciprocated rod engage the pilot valves. Each pump half has the exterior wall member disposed to carry two one-way valves, one valve to inhibit inward flow to the chamber and one valve to inhibit flow from the chamber.
REFERENCES:
patent: 2606739 (1952-08-01), Gardner
patent: 2645451 (1953-07-01), Gladden
patent: 3348803 (1967-10-01), Churchill, Jr.
patent: 3540348 (1970-11-01), Pennther
patent: 3555966 (1971-01-01), Coniglio
patent: 3811795 (1974-05-01), Olsen
patent: 3838946 (1974-10-01), Schall
patent: 3860034 (1975-01-01), Rupp
patent: 4104008 (1978-08-01), Hoffmann et al.
patent: 4161308 (1979-07-01), Bell et al.
Roberts Ralph R.
Smith Leonard E.
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