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
Method and system for simulating superimposition of a non-linearly stretchable object upon a base object using representative images
Mobile application for calendar sharing and scheduling
Personalized dashboard architecture for displaying data display applications
System for programming domestic appliances and method for programming assembly-line programmable domestic appliances
Method and a system for registering a 3D pre-acquired image coordinates system with a medical positioning system coordinate system and with a 2D image coordinate system
Scattering spectroscopy employing hotspot-aligned nanopores
  Randomly Featured Patents
Power seat lift arrangement for automotive seat with compact construction enabling lowering of hip point
Method of adhering a decorative sheet on a hollow structure
Motor operator for switchgear for mains power distribution systems
Packaging plug with conical nose
Parachute with skirt reefing system
Preventing execution of software without a dynamically generated key
Ink cartridge having retaining structure and recording apparatus for receiving the ink cartridge
Radio wave source information display apparatus
Transflective type liquid crystal display device
Device for determining angle of inclination of ship