Programmable weight sensitive microingredient feed additive delivery system and method
Patent 4733971 Issued on March 29, 1988. Estimated Expiration Date: 
February 26, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
February 26, 2006. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorAssigneeApplicationNo. 06/833904 filed on 02/26/1986US Classes:366/141, WITH WEIGHING141/107, With mingling in or successive path through trap141/284, Movably mounted supply141/83, WITH TESTING OR WEIGHING RECEIVER CONTENT222/57, By weight, volume or pressure of a second dispensed material366/152.2, By volume or fixed quantity366/153.1, Controlling level of material in mixing chamber366/154.2, By vibration366/156.2, Plural screw feeders366/181.8, Fluid pump366/292, Plural stirrers366/330.1, Axially directing blade (e.g., propeller, helix section, etc.)366/603, ANIMAL FOOD MIXER414/21, WITH WEIGHING414/294Condition responsiveExaminersPrimary: Jenkins, Robert W.Attorney, Agent or FirmInternational ClassesA01K 5/00 (20060101)A01K 5/02 (20060101) G05D 11/13 (20060101) G05D 11/00 (20060101) B01F 3/00 (20060101) B01F 15/04 (20060101) B01F 15/02 (20060101) B01F 3/12 (20060101) B01F 3/18 (20060101) B01F 5/26 (20060101) B01F 5/00 (20060101) G01G 15/00 (20060101) G01G 19/00 (20060101) G01G 19/24 (20060101) G01G 23/00 (20060101) G01G 23/06 (20060101) AbstractA method and apparatus whereby livestock and poultry are administered feed additives in their feed ration. In one disclosed form, the apparatus stores additive concentrates separately until just prior to use, then on demand dispenses the additive concentrates separately and sequentially into a weigh hopper for sequential, cumulative weighing therein. The weighed contents of the weigh hopper are deposited into a liquid carrier within a mixing vessel where the dispensed additives are diluted, suspended, and dispersed by mixing. The resulting carrier-and-additive slurry is pumped to a receiving station for mixing with a feed ration. The weigh hopper is isolated from movements that would affect additive weight determinations during the weighing process so that accurate measurements of the additive weights are obtained. A computerized control system controls the operation and sequencing of the apparatus. In another disclosed form, the apparatus dispenses additive concentrates by weight directly into a mixing vessel by measuring the loss-of-weight of their respective storage containers. In still another disclosed form, the apparatus dispenses some additive concentrates by weight and others by volume into a mixing vessel.Other References
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