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VALVE FOR POWDER

  • US 20120037833A1
  • Filed: 03/26/2009
  • Published: 02/16/2012
  • Est. Priority Date: 03/26/2009
  • Status: Abandoned Application
First Claim
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1. A valve for powder comprising a valve casing 21, a valve shaft 25, a valve body 22 mounted in the valve casing 21 and rotatably supported by the valve shaft 25, said valve casing 21 having an inlet port 11, and an annular valve seat 23 provided at the inlet port 11 of the valve casing 21, wherein said valve body 22 has a spherical outer surface 27 configured to be brought into contact with the valve seat 23 over the entire circumference of the valve seat 23 when the valve body 22 is in a closed position, wherein said valve body 22 is formed with a communication hole 26 extending in a direction perpendicular to an axis p of the valve shaft 25, wherein when the valve body 22 is rotated about the valve shaft 25 in either of two opposite directions from the closed position, the valve is configured to open through the communication hole 26, and wherein the communication hole 26 is open at its portion opposite to its side facing the valve seat 23 in the closed position, over an entire length of the communication hole 26.

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