Resources Contact Us Home
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
System and method of automatic piloting for in-flight refuelling of aircraft, and aircraft comprising said system
Processing abstract derived entities defined in a data abstraction model
Liquid low temperature injection molding process
Microcapsules, their use and processes for their manufacture
Methods for predicting cardiac toxicity
Perspective runway system
Processing autocomplete suggestions
  Randomly Featured Patents
Percutaneous femoral bypass system
Soybean cultivar OW0913009
Rotating and warping projector/backprojector for converging-beam geometries
Load distribution method, load distribution device, and system including load distribution device
Sound muffling device for cymbal practice
Fume hood with airflow control system
Method, system and device for colour quality control
Electrochemical generators with a sedimentation bed and divergent feed
Derailleur mechanism
Paint container holder