Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
Automatic water level monitoring system










Image Number 4 for United States Patent #4621657.

A system for maintaining a preselected water level in e.g. a swimming pool comprises a chamber (6) in communication with the pool such that the water level in the chamber corresponds to that of the pool. The chamber contains an adjustable over flow tube (15) and a vertically oriented water supply line (19) having a diaphragm valve (20) and surrounded by an annular float (29), the valve being actuated by a height adjustable overhead actuator bar (23).








 
 
  Recently Added Patents
Press nut
Multicyclic compounds and methods of use thereof
Maintenance tool of control systems
Digital broadcast receiver and method for processing caption thereof
Method for manufacturing a turbine engine vane
Methods for isolating ligands of the human bitter taste receptor TAS2R49
Wafer level package and fabrication method
  Randomly Featured Patents
Apparatus for dispensing and holding tissue rolls
Systems, methods, and apparatus for impulse noise mitigation
Bifunctional detection agents
Illuminated stilt apparatus
Multilayered gasket with eyelit
Microcomputer terminal system
Method and apparatus for determining burn-in reliability from wafer level burn-in
Maize variety inbred PH1CJB
Cable management support bar with strain relief clamps
Television camera