E - Fixed Constructions – 04 – H
Patent
E - Fixed Constructions
04
H
137/24, 341/34
E04H 3/16 (2006.01) E04H 4/12 (2006.01) G05D 9/12 (2006.01)
Patent
CA 1252178
SWIMMING POOL CONTROL SYSTEM Olin A. Lively Abstract of the Disclosure A control system for automatically maintaining a predetermined water level in a swimming pool include a multi-contact water level sensor unit mounted on an exposed sidewall of the pool. The sensor unit is vertically adjustable within a stationary mounting bracket to enable user adjustment of a selected normal water level. A single sensing contact on the sensor unit senses the presence or absence of water at the selected normal level. A monitoring circuit associated with the sensor unit interrupts operation of the control system in the event that the sensor unit is disconnected. Additional water level sensing contacts open a dump valve to preclude overflow of the pool in the event of a high water condition, and interrupt operation of recirculation pump apparatus associated with the pool in the event of a low water level.
502362
Lively Olin A.
Osler Hoskin & Harcourt Llp
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