Troxler Electronic Laboratories, Inc.

William Matthew Moscrip

William A Gowan

Raffaello Verna

Dirk Matthew Steckmann

Rayvonn Donnell Core

A gyratory compactor apparatus is provided for interacting with a sample within a generally cylindrical mold having a flange. Such an apparatus comprises a frame defining an axis and an offsetable member engaged with the frame for engaging one end of the mold. The offsetable member is displaceable from the axis and is concurrently movable in an orbital motion thereabout. A pressure ram is movable along the axis and a mold-engaging device is engaged with the frame for receiving the mold such that the mold and frame axes are coaxial. The pressure ram is axially movable within the mold to apply a compaction pressure on the sample, and thereby maintains a portion of the mold at a gyration point along the frame axis. The mold-engaging device axially moves the mold into engagement with the offsetable member. A securing device engaged with the offsetable member and movable therewith reversibly engages the mold to secure the mold to the offsetable member as the secured end is moved in the orbital motion by the offsetable member. The mold is thereby gyrated and dynamically maintained at a gyration angle. Associated apparatuses, devices, and methods are also provided.

Device for determining and maintaining mold gyration angle in a gyratory compactor

Interaction device for a mold for a gyratory compactor

Gyratory compactor apparatus and associated devices and methods

An apparatus adapted to interact with a cylindrical mold for a gyratory compactor so as to determine a property of the gyratory compactor is provided, wherein the mold is adapted to contain a sample therein. Such an apparatus comprises a rigid disk-shaped plate defining an axis and a periphery, with the plate being adapted to be disposed within the mold. At least one sensing device is operably engaged with the plate, wherein the at least one sensing device is configured to measure a proximity of the at least one sensing device with respect to a reference member and to produce a corresponding signal indicative of the property of the gyratory compactor. In one embodiment, the apparatus is configured to determine the gyration angle of the mold, while in another embodiment, the apparatus is configured to determine the pressure exerted on the sample within the mold. The property of the mold may be determined either statically or dynamically. Associated apparatuses, devices, systems, and methods are also provided.

Method and apparatus for determining the angle of gyration and/or the pressure in a gyratory compactor

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Durham, NC, United States of America

William Matthew Moscrip