Machine for preparing an asphalt sample by polishing the surface of the sample and associated method
US9423324B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Mar 6, 2014 |
| Grant date | Aug 23, 2016 |
| Priority date | — |
| Expiry date | Aug 1, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N19/02
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A machine (10) for preparing a sample asphalt material (74) for testing includes a rotatable shaft (22) carrying a disc (28) adapted to engage the sample (74). A channel (26) which communicates with a source of water is formed in the shaft (22). A plate assembly (16) having a predetermined weight carries the shaft (22). An actuator assembly (18) moves the plate assembly (16) upwardly and releases the plate assembly (16) so that it is allowed to move downwardly so that the disc (28) contacts the sample (74) with only the weight of the plate assembly (16) being applied to the sample (74). The disc (28) is made of a rubber material and receives the water from the channel (26) through aperture (72) which communicates with slots (44) on the side of the disc (28) facing the sample (74). As a result, water is produced to the interface between the disc (28) and the sample (74) as the disc (28) rotates to polish the sample (74) and prepare it for testing.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.