Chemical apparatus and process disinfecting – deodorizing – preser – Control element responsive to a sensed operating condition – Sensed condition is operating time and control is operation...
Patent
1994-08-15
1996-05-07
Warden, Robert J.
Chemical apparatus and process disinfecting, deodorizing, preser
Control element responsive to a sensed operating condition
Sensed condition is operating time and control is operation...
422292, 62 78, 62303, 137216, 137561A, A61L 218, A61L 224, F28G 1300
Patent
active
055143440
ABSTRACT:
Microorganism growth within water chambers of air conditioning systems is controlled by the periodic introduction of minute quantities of biocidal materials. A large volume reservoir holds a concentrated solution of biocidal material. A pump, fed from the reservoir, pumps the solution through a tube to the water chamber. The pump is actuated for very short duration periods so that only a very small volume of the solution is dispensed. The time interval between periods is very long so that the biocide concentration in the water chamber is renewed as required. The duration of the pumping periods and the time interval between periods are adjustable by controls in a timer. A normally closed check valve in the line keeps the line full between periods. An antisiphon mechanism is provided in the line when it branches. An alarm mechanism is optionally provided to warn when the reservoir solution is depleted.
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patent: 4545956 (1985-10-01), Ciszewski et al.
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patent: 5195334 (1993-03-01), Lang et al.
patent: 5289691 (1994-03-01), Schlosser et al.
Blum Alvin S.
Dawson E. Leigh
Warden Robert J.
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