Device and method for measuring the impact properties of a sport field surface
US7243526B2 · kind B2 · utility
4Cited by
7References
15Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 16, 2005 |
| Grant date | Jul 17, 2007 |
| Priority date | — |
| Expiry date | Feb 16, 2025 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01N2203/0676
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
The tuft impact tester mounts a test probe in a suspended manner from a tripod arrangement via a gimbals mechanism so that the test probe is able to move along a vertical axis. The test probe is dropped from a predetermined height, the velocity of the test probe is measured prior to impact on a ground surface and the deceleration of the test probe caused by the ground surface is measured. The two values are used to determine the relative hardness of the ground surface.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.