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Metering and/or feeding unit for fluid materials

  • US 4,529,106 A
  • Filed: 09/02/1982
  • Issued: 07/16/1985
  • Est. Priority Date: 09/02/1982
  • Status: Expired due to Fees
First Claim
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1. A metering and feeding unit for fluid material, comprising:

  • an open-ended, elastic-walled tube for receiving the material having an open feed end and an open discharge end;

    a power-driven assembly positioned adjacent the length of the tube including spaced tube rollers mounted on a endless, flexible, drive belt which, in repeating cycles, engage the tube to collapse a portion of the tube against itself starting at the feed end of the tube and working progressively toward the discharge end where it disengages from the tube to allow reinflation of the tube and discharge of the material from the tube; and

    valve means coordinated to open the feed end of the tube after one of the spaced tube rollers of the power-driven assembly initially engages and collapses the portion of the tube at the feed end when that portion of the tube is substantially free of material.

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