Tread depth sensing device and method for measuring same
US7578180B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Jun 29, 2007 |
| Grant date | Aug 25, 2009 |
| Priority date | — |
| Expiry date | Jul 5, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01B7/26
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A tread depth measurement system for measuring a depth of a tread provided to a tire on a vehicle. The system includes an energy source for emitting a wireless signal to be transmitted to the tire; a sensor for detecting a return wireless signal emitted from the tire to be transmitted in response to the wireless signal from the energy source; and a housing over which the tire is to roll while attached to the vehicle, said housing separating the sensor from the tire while the tread depth is being measured. A control unit is operatively coupled to the sensor for determining the depth of the tread as a function of at least the return wireless signal detected by the sensor.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.