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Method and apparatus for metering and blending different material ingredients

  • US 5,148,943 A
  • Filed: 06/17/1991
  • Issued: 09/22/1992
  • Est. Priority Date: 06/17/1991
  • Status: Expired due to Fees
First Claim
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1. A method of metering different material ingredients for discharge to a material processing machine, comprising:

  • delivering to a common hopper a plurality of individual material ingredients at controllable individual material discharge rates,discharging material from said common hopper to said processing machine at a discharge rate,determining loss of weight of material in said hopper due to discharge of material therefrom,determining the material processing rate of the processing machine from the sum of the material discharge rates of the ingredients to the common hopper and the discharge rate of the material from the common hopper to the processing machine, andcontrolling the material discharge rates of the ingredients to the common hopper in response to said determined material processing rate as needed to maintain a preset recipe of said blended ingredients at said determined material processing rate.

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