Diaphragm pump

Details Diaphragm pump Diaphragm pump

1992-02-10

1992-11-24

Bertsch, Richard A.

Pumps

Motor driven

Fluid motor

417413, 417388, F04B 4306, F04B 708

Patent

active

051658690

ABSTRACT:
A piston-driven fluid pump including a drive chamber containing drive fluid and a drive diaphragm forming a wall of the drive chamber. The pump also includes a spill containment chamber disposed adjacent the drive chamber and containing drive fluid, with a pumping diaphragm forming a wall of the spill containment chamber. A pump chamber assembly is disposed adjacent the fluid containment chamber, and is in fluid communication with a source of fluid to be pumped. A selectively actuable piston pressurizes the drive fluid in the drive chamber, and a pressure compensation device, disposed in fluid communication with the drive chamber, provides selectively variable pressure relief to the drive chamber.

REFERENCES:
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patent: 2713827 (1955-07-01), Hoop
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patent: 4021157 (1977-05-01), Elderfield
patent: 4459089 (1984-07-01), Vincent et al.
patent: 4474540 (1984-10-01), Bonastia
patent: 4619589 (1986-10-01), Muller
"Making Small-Scale Additions", Calculation and Shortcut Desk Book (Chemical Engineering), McGraw-Hill, 1992, p.97.
"Centrac" Brochure, Milton Roy Flow Control Division, Oct. 1991.
"Piston and Diaphragm Metering Pumps . . . Basic Design, Application and Maintenance Principles", Peace, Plant Engineering, Oct. 26, 1978, p. 131.
Plant Engineering, Nov. 29, 1979, pp. 58, 60.

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