Resources Contact Us Home
Granular material color sorting apparatus utilizing fluid jets with an injection delay control unit

Image Number 7 for United States Patent #6100488.

A granular material sorting apparatus comprises a transfer device for causing material grains to fall down, optical detector units mounted along the falling-down locus of the material grains, an injection nozzle device for injecting air to the material grains, and a control unit for controlling operation of the injection nozzle device in response to detection by the optical detector unit. The optical detector units and the control unit optically detect and discriminate colored grains different in color from good material grains and foreign matters in similar color to the good material grains or transparent, which are mixed in the material grains, and activate the injection nozzle device in a predetermined period of time after the detection to remove the detected bad grains. The control unit sets different injection times and different injection delay times depending whether the bad grains are colored grains or foreign matters.

  Recently Added Patents
Method of reducing acetaldehyde in polyesters, and polyesters therefrom
Light fixture
Method and system for associating a cell-sector with time-dependent location parameters
High brightness laser diode module
Semiconductor device having a plurality of elements on one semiconductor substrate and method of manufacturing the same
Case of electronic device having antenna pattern embedded therein and mold and method for manufacturing the same
Receiving security risk feedback from linked contacts due to a user's system actions and behaviors
  Randomly Featured Patents
Multiple membrane microencapsulation
Video rate adaptation to reverse link conditions
Hydraulic rod pusher-puller
Laser-diode-excited laser apparatus, fiber laser apparatus, and fiber laser amplifier in which laser medium doped with one of Ho3+, Sm3+, Eu3+, Dy3+, Er3+, and Tb3+ is excited with GaN-based c
Protective cover for rocker switch
2'-deoxyuridine derivatives and hydrogels formed therewith
Optical scanning apparatus
Extending system of input/output channel
Method and apparatus for providing an adjustable cord
Tamper evident plug and combination