CHARLES ALLEN JOHNSON
Pilots at Mallory St, Mesa, AZ
License number
Arizona A0947350
Issued Date
Dec 2016
Expiration Date
Jun 2017
Category
Airmen
Type
Authorized Aircraft Instructor
Address
Address
7016 E Mallory St, Mesa, AZ 85207
Professional information
Apparatus For Automatically Regulating Water Level In A Swimming Pool
US Patent:
5790991, Aug 11, 1998
Filed:
Mar 31, 1997
Appl. No.:
8/829352
Inventors:
Charles F. Johnson - Mesa AZ
International Classification:
E04H 412
US Classification:
4508
Abstract:
Apparatus for monitoring and controlling the level of water in a swimming pool includes a vertically elongated vessel partially-buried below the pool water level at a location close to the return line from the filter to the pool inlet, a connector pipe extending from the vessel to the return line for allowing pool water at sub-level pressure to enter the vessel and rise to the pool water level, and a float-controlled valve supported within the vessel and detachably coupled with a pressure water supply and adapted to open as the float drops below a predetermined desired level and allow fresh water to flow into and out of the vessel through the connector pipe and return line and then into the pool for restoring the water in the pool to the predetermined desired level as determined by the position of the float on the water within the vessel being restored to a float position indicative of the predetermined desired level of water in the pool.