Measuring and testing – Testing by impact or shock – Specimen impactor detail
Patent
1981-09-21
1983-12-27
Swisher, S. Clement
Measuring and testing
Testing by impact or shock
Specimen impactor detail
G01N 330
Patent
active
044223196
ABSTRACT:
Corns and other grains are tested for resistance to breakage during shipment by being fed to a rapidly rotating impeller (30) mounted within a cylindrical impact chamber (16). The grains are metered into the center of the impeller (30) by a metering device (12) at a controlled rate, and are thereafter spun outward through channels formed within the solid impeller disk (60) to strike the smooth surfaced inner wall (35) of the impact chamber (16) at consistent velocities. The smashed grains fall through a collection chute (17) into a box (20) and are subsequently screened to determine the relative percentage of broken and unbroken grains. The rate of speed of the impeller (30) and the metering device (12) are controlled to insure uniformity of testing between each sample.
REFERENCES:
patent: 2585657 (1952-02-01), Keefer
patent: 2976717 (1961-03-01), Davoust
patent: 3676765 (1972-07-01), Westcott
"A Mechanical Damage Susceptibility Tester for Shelled Corn," Ramesh Sharda and Floyd L. Herum, American Society of Agricultural Engineers, 1977 Winter Meeting.
"A Centrifugal Gun for Impaction Testing of Seeds," J. Robert Cooke and James W. Dickens, 1971 Transactions of the ASAE, pp. 144-155.
Finner Marshall F.
Singh Shiw S.
Swisher S. Clement
Wisconsin Alumni Research Foundation
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