Measuring and testing – Specimen stress or strain – or testing by stress or strain... – By loading of specimen
Patent
1992-10-20
1994-01-04
Woo, Jay H.
Measuring and testing
Specimen stress or strain, or testing by stress or strain...
By loading of specimen
425169, 425411, 425415, 425421, G01N 356
Patent
active
052750566
ABSTRACT:
A gyratory shear material compacting device in which a material sample is placed within a cylindrical mold having a wobble plate. The material sample is compressed by a piston while the mold is simultaneously gyrated. Gyration is achieved by tilting the mold and holding the wobble plate within rollers which revolve around the mold, controlling the selected angle of tilt while imparting oscillatory gyration. The selected angle of tilt of the mold may be precisely controlled at all times, preventing the mold from riding up on the sample, or from coming into contact with the base of the device. The mold is free to advance rotationally. The device is capable of measuring and recording the height of the sample, angle of gyration, and moment of gyration.
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MAP Publication, "Gyratory Shear Compacting Press" 3 pgs.
Alexander Raymond D.
Hamilton Edward R.
Hart Lawrence E.
Mackey James P.
Rainhart Co.
Woo Jay H.
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