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Weighing and filling method and apparatus

  • US 4,843,579 A
  • Filed: 03/10/1986
  • Issued: 06/27/1989
  • Est. Priority Date: 03/10/1986
  • Status: Expired due to Fees
First Claim
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1. In an apparatus for weighing and filling powdered materials wherein a generally horizontally disposed trough contains said powdered materials and drive means are drivingly connected to said trough to incrementally advance said powdered materials toward a discharge section thereof, the improvement comprising:

  • orifice means at said discharge section of said trough forming a downwardly directed opening for discharge of said materials by gravity therethrough;

    a valve member aligned with respect to the opening in said orifice means; and

    support means for suspending said valve member over said opening for vertically directed, reciprocal movement of said valve member with respect to said opening in response to activation of said drive in advancing the powdered materials through the opening.

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