Method and apparatus for determining the angle of gyration and/or the pressure in a gyratory compactor
First Claim
1. A device adapted to dynamically measure a pressure exerted on a sample contained within a cylindrical mold or a gyratory compactor, said device comprising:
- a rigid disk-shaped plate defining an axis and a periphery, the plate being adapted to be disposed within the mold in communication with the sample; and
at least one proximity-sensing device operably engaged with the plate, the at least one proximity-sensing device being configured to dynamically measure a proximity of a reference member with respect to the at least one proximity-sensing device and to produce therefrom a signal corresponding to the pressure exerted on the sample within the mold.
1 Assignment
0 Petitions
Accused Products
Abstract
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.
-
Citations
38 Claims
-
1. A device adapted to dynamically measure a pressure exerted on a sample contained within a cylindrical mold or a gyratory compactor, said device comprising:
-
a rigid disk-shaped plate defining an axis and a periphery, the plate being adapted to be disposed within the mold in communication with the sample; and
at least one proximity-sensing device operably engaged with the plate, the at least one proximity-sensing device being configured to dynamically measure a proximity of a reference member with respect to the at least one proximity-sensing device and to produce therefrom a signal corresponding to the pressure exerted on the sample within the mold. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. A system adapted to dynamically measure a pressure exerted on a sample contained within a cylindrical mold of a gyratory, compactor said system comprising:
-
an open-ended cylindrical mold having an inner diameter, the mold being adapted to contain a sample therein for compaction by the gyratory compactor;
a rigid disk-shaped plate defining an axis and a periphery and having a diameter corresponding substantially to the inner diameter of the cylindrical mold, the plate being adapted to be disposed within the mold in communication with the sample; and
at least one proximity-sensing device operably engaged with the plate, the at least one proximity-sensing device being configured to dynamically measure a proximity of a reference member with respect to the at least one proximity-sensing device and to produce therefrom a signal corresponding to the pressure exerted on the sample within the mold. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
-
-
21. A system adapted to dynamically measure a pressure exerted on a sample contained within a cylindrical mold of a gyratory compactor, said system comprising:
-
a gyratory compactor apparatus;
an open-ended cylindrical mold having a wall defining an inner diameter, the mold being configured to be operably engageable with the gyratory compactor apparatus and adapted to contain a sample therein for compaction by the gyratory compactor;
a rigid disk-shaped plate defining an axis and a periphery and having a diameter corresponding substantially to the inner diameter of the mold, the plate being adapted to be disposed within the mold in communication with the sample; and
at least one proximity-sensing device operably engaged with the plate, the at least one proximity-sensing device being configured to dynamically measure a proximity of a reference member with respect to the at least one proximity-sensing device and to produce therefrom a signal corresponding to the pressure exerted on the sample within the mold. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
-
-
31. A method of determining a pressure exerted on a sample contained within a cylindrical mold for a gyratory compactor said method comprising:
-
inserting at least one proximity-sensing device into an open end of the mold, the mold having an inner diameter, the at least one proximity sensing device being operably engaged with a rigid disk-shaped plate defining an axis and a periphery and having a diameter corresponding substantially to the inner diameter of the mold, the plate further comprising a disk-shaped base portion having a center and opposing faces and a ring-shaped portion coaxial with the center and extending from the periphery of one of the faces, the center being configured to experience a deflection with respect to the periphery in response to pressure applied across the other face of the base portion, the at least one proximity-sensing device being mounted on a distal end of an arm having a proximal end mounted at the center and extending to the distal end substantially parallel to the base portion; and
dynamically receiving a signal from the a least one proximity-sensing device as the mold is being gyrated by the gyratory compactor, the signal corresponding to a proximity of a reference member with respect to the at least one proximity-sensing device, the reference member being mounted on the base portion of the plate, away from the center and adjacent to the ring-shaped portion, so as to be adjacent to the at least one proximity-sensing device, the deflection of the center in response to pressure resulting in a corresponding displacement of the arm and the at least one proximity-sensing device parallel to the axis, the reference member being configured with respect to the at least one proximity-sensing device such that the displacement of the arm parallel to the axis and away from the reference member is sensed by the at least one proximity-sensing device, the corresponding signal produced by the at least one proximity-sensing device thereby being indicative of the pressure exerted on the sample within the mold. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38)
-
Specification