Resources Contact Us Home
Apparatus for sensing objects on a moving conveyor

Image Number 6 for United States Patent #4979670.

A sensor for sensing and counting objects on a moving conveyor. Objects are moved on the conveyor past a sensor having first and second legs pivotally mounted about a fixed axis above the conveyor. The second leg is offset from the first leg in the direction of conveyor movement. As an object encounters the first leg, it causes the first leg to rotate toward the second leg. A proximity detector includes a target mounted on the first leg and a sensing element mounted on the second leg. The proximity detector detects movement of the first leg relative to the second leg and generates a pulse, thereby counting the object, when the first leg assumes a predetermined position relative to the second leg.

  Recently Added Patents
Method and apparatus for encoding and decoding video based on first sub-pixel unit and second sub-pixel unit
Method and apparatus for cutting high quality internal features and contours
Apparatus and method for storing event information for an HVAC system
Compositions and processes for forming photovoltaic devices
Device for accurately measuring concentration of component in blood and control method of the device
Fluid pressure responsive electric switch
Simulation tool for air traffic communications security
  Randomly Featured Patents
Optical amplifying glass and method for its production
Variable venturi type carburetor
Branching filter package
Apparatus for folding a sheet of material an angle of
Apparatus for cooking food
Structural improvement of toy Christmas tree
Music intelligence universe server
System and method for password-free access for validated users
Liquid crystal composition and liquid crystal display device using said composition
Desmodromic valve retrofit system with replaceable cam lobes for adjusting duration and hydraulic lifters for reliability