F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
341/39
F04B 49/06 (2006.01) F04B 49/00 (2006.01) F04D 9/00 (2006.01) F04D 15/02 (2006.01) G05D 16/20 (2006.01)
Patent
CA 1177938
Abstract For use in connection with an electrically driven pump and check valve combination as used in municipal water and sewage plants wherein the check valve prevents the reverse flow of water from the pipeline to which the pump supplies water into the pump, as would otherwise happen in case of a pump failure or breakdown or temporary power failure, there is provided a pump director with a first timer that starts the pump operating as soon as a control switch is closed and power is available and, as soon as the pump motor is energized, a blue signal light flashes, but if pressure does not begin to build up in the pump outlet with the check valve closed, a flashing red signal will replace the blue and continue indefinitely until manually reset. If the pump does start to build up pressure, the flashing blue light will become steady whereupon a buildup of pressure continues and a flashing green light replaces the steady blue; and a second timer takes over under control also of a pressure switch to start opening the check valve and a limit switch is opened that cuts both timers out of the circuit and switches the flashing green light to a steady green light. In the event of an emergency, such as an unscheduled power failure, a damaged pump or motor, etc., a pressure switch losing pressure will trigger a fast emergency closing of the check valve and open the motor circuit.
404078
Lescovich Joseph E.
Salina Louis E.
Ga Industries Inc.
Marks & Clerk
LandOfFree
Heavy duty electric pump control unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Heavy duty electric pump control unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Heavy duty electric pump control unit will most certainly appreciate the feedback.
Profile ID: LFCA-PAI-O-1314367