Positive displacement pump output monitor

Details Positive displacement pump output monitor Positive displacement pump output monitor

1984-04-02

1985-10-29

Freeh, William L.

Pumps

Processes

417 63, 34030915, 340626, 307118, 200 819R, F04B 2100, G08B 2100

Patent

active

045498539

ABSTRACT:
Disclosed is a positive displacement pump output monitor which is employed by (a) passing the discharged fluid from said pump through a pulse receiving chamber, the pressure of said pumped fluid during the discharge stroke of the pump causing a diaphragm in said pulse receiving chamber to be moved outwardly by said fluid; (b) causing the outward concurrent movement of a spring-loaded metal shaft when the diaphragm is moved outwardly; (c) contacting a fixed element with said outwardly moved spring-loaded shaft, thereby causing a time-delayed relay connected to said fixed element to be reset; and (d) causing said time-delayed relay to send an alarm signal to an alarm annunciation means if said relay is not reset within a predetermined amount of time.

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patent: 4385217 (1983-05-01), Culbertson et al.
patent: 4468170 (1984-08-01), Hanset
Kent K. Steward, "Depulsing System for Positive Displacement Pumps", Analytical Chemistry, vol. 49, No. 13, Nov. 1977, pp. 2125-2126.
Perry and Chilton, Chemical Engineer's Handbook, Fifth Edition, Section 6-3 to 6-5 and 6-11 to 6-15.

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