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
Image processing apparatus and method configured to calculate defocus amount of designated area
Mobile camera localization using depth maps
Systems and methods for mitigating spectral regrowth from non-linear systems
Charging member, electrophotographic apparatus, and process cartridge
Apparatus and method for image encoding/decoding using predictability of intra-prediction mode
Method of analyzing cell structures and their components
Method and system for modularized configurable connector system for ethernet applications
  Randomly Featured Patents
Charging stand for hair cutting machine
Image display device and electronic appliance
Container rim cover
Diagnostic system
Light for ground obstruction marker
Hydro-mechanical overhead for internal combustion engine
Core-excited nanoparticles and methods of their use in the diagnosis and treatment of disease
Drum access mechanism
Method of producing a microstructured surface and the article produced thereby
Apparatus for dividing a gas stream into several partial gas streams