F - Mech Eng,Light,Heat,Weapons – 04 – B
Patent
F - Mech Eng,Light,Heat,Weapons
04
B
341/34.3
F04B 41/06 (2006.01) F04B 49/025 (2006.01) G05D 9/12 (2006.01)
Patent
CA 1258510
ABSTRACT OF THE DISCLOSURE Alternator circuit arrangement (20) for controlling the electrical energization of multiple load devices such as two pump motors (41,42) on an alter- nating basis so as to maintain the level of a liquid (86) in a container (84) within a predetermined range. The alternator circuit arrangement (20) further including an RC circuit (54) having a capacitor (62) for discharging through a normally closed switch (50b) which is opened during energization of the pump motors (41,42) so as to energize a bi-stable relay (52) which in turn interconnects alternate ones of the pump motors (41,42) to the alternator circuit (20) such that upon detection of the liquid (86) at an intermediate level (96) alter- nate ones of the pumps (41,42) are energized.
521660
Gowling Lafleur Henderson Llp
S.j. Electro Systems Inc.
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