Portable gyratory compactor and extruder with a single pivot and

Details Portable gyratory compactor and extruder with a single pivot and Portable gyratory compactor and extruder with a single pivot and

1997-01-10

1998-10-20

Dombroske, George M.

Measuring and testing

Specimen stress or strain, or testing by stress or strain...

By loading of specimen

73824, G01N 308

Patent

active

058249133

ABSTRACT:
A portable combined gyratory compactor and extruder for compacting a specimen of material in a mold held in a mold gyration assembly and gyrated about a longitudinal axis as a compaction ram is driven into the mold, and for extruding compacted material from the mold without removing the mold from the mold gyration assembly. The mold gyration assembly is suspended from a spherical bearing pivot positioned lateral to the longitudinal axes of the mold and the compaction ram. The compaction ram is drivingly insertable up into the mold through the bottom of the mold to compact material in the mold as the mold is gyrated by the mold gyration assembly. When the gyratory compaction is completed, a top cap assembly over the top of the mold is removed to allow the compaction ram to be driven farther upward into the mold to extrude compacted material through the open top of the mold while the mold is held in the mold gyration assembly. Load cells in a supporting frame are used to measure compaction extent and linear position sensors are used to measure gyration angles of the mold gyration assembly. The device is mounted on a frame with wheels.

REFERENCES:
patent: 2972249 (1961-02-01), McRae et al.
patent: 3461717 (1969-08-01), Dunlap et al.
patent: 4942768 (1990-07-01), McRae
patent: 5036709 (1991-08-01), McRae
patent: 5323655 (1994-06-01), Eagan et al.
patent: 5456118 (1995-10-01), Hines et al.
patent: 5606133 (1997-02-01), Hines et al.

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