Swimming pool control system
Patent 5730861 Issued on March 24, 1998. Estimated Expiration Date: 
May 6, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
May 6, 2016. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3618774 3630363 3640310 3834537 3837015 3848627 3895402 Apparatus to control the water level in a swimming pool Multi-port backwash valve Liquid level sensing device and swimming pool water circulation systems containing the same InventorsApplicationNo. 642876 filed on 05/06/1996US Classes:210/86, Material level or thickness responsive4/508, And water level control137/554, Electrical137/625.46, Rotary valve unit210/90, Fluid pressure responsive210/108, Backwash or blowback210/134, Plural elements controlled210/169Aquarium or swimming poolExaminersPrimary: Drodge, Joseph W.Attorney, Agent or FirmInternational ClassesB01D 017/12B01D 035/157 AbstractA swimming pool control system automatically controls the daily maintenance functions of a swimming pool. The control system actively monitors system conditions, makes adjustments for abnormal conditions, and provides remote feedback of system problems during its daily cycle. In addition, the control system provides operator assisted manual override operation and control of additional auxiliary equipment. The system includes a novel filter valve, a novel water level system and a novel suction valve that can be run and monitored non-manually by a digital controller.Other References
Field of SearchMaterial level or thickness responsiveFluid pressure responsive Responsive to material level Backwash or blowback Float Controls valve Float in separate rehabilitating fluid tank Additional fluid inlet control Float in receptacle other than that of separator Plural elements controlled WITH PROGRAM ACTUATOR AUTOMATIC CONTROL Aquarium or swimming pool Backwash or blowback means Multi-way valve unit For aquarium or swimming pool Backwash Encased Backwash Electrical Valve with bypass connections With cleaning means And water level control | |
