Pumps – Condition responsive control of pump drive motor – By stopping pump in response to leakage into or from system
Patent
1994-12-19
1996-03-26
Bertsch, Richard A.
Pumps
Condition responsive control of pump drive motor
By stopping pump in response to leakage into or from system
417 41, 417 53, 417 63, 417313, 417395, 92 79, F04B 4910, F01B 100
Patent
active
055015778
ABSTRACT:
A technique for detecting and containing liquid leaks in a liquid pumping, gas-operated diaphragm pump, and for stopping the pump operation when such leaks occur. If there is a leak in such a pump, the exhaust air gets contaminated with the liquid. With this technique the pump exhaust gas is captured in a container where any liquid within the gas is separated and is allowed to accumulate at the container bottom. The level of liquid accumulated at the container bottom is sensed, and when it reaches a predetermined level, a signal is send to a pneumatically operated shutoff valve to stop the pump operation by stopping the inflow of gas into the pump, or the outflow of liquid from the pump, or to stop the inflow of liquid into the pump. In addition, when the accumulated liquid reaches a predetermined level, a signal may be sent to a pneumatically operated warning device, turning it on.
REFERENCES:
patent: 2239270 (1941-04-01), Jahreis
patent: 2703055 (1955-03-01), Veth et al.
patent: 2769395 (1956-11-01), Olson, Jr.
patent: 3087431 (1963-04-01), Bagwell
patent: 3131638 (1964-05-01), Wilson et al.
patent: 3176623 (1965-04-01), Howerton et al.
patent: 3807899 (1974-04-01), Ward et al.
patent: 4740139 (1988-04-01), Mantell
patent: 4781535 (1988-11-01), Frawley et al.
patent: 4787825 (1988-11-01), Mantell
patent: 4856969 (1989-08-01), Forsythe et al.
patent: 4934902 (1990-06-01), Mantell
patent: 5062770 (1991-11-01), Story et al.
Cornell Gary L.
Vise Donald G.
Bertsch Richard A.
Thai Xuan M.
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