Wheel balancer and control circuit therefor
US6324908A · kind A · utility
13Cited by
9References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 13, 1999 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | May 13, 2019 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M1/225
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A wheel balancer has an improved drive circuit and improved safety features. The drive circuit includes an H-bridge configuration, preferably utilizing MOSFET or IGBT transistors. The safety features include an electrical brake which operates upon removal of power to safely and reliably stop the rotation of the wheel/tire assembly being balanced. A hardware safety interlock is provided to limit rpm and/or travel of the wheel/tire assembly based upon preset criteria. A novel display system is included for displaying axial, radial, and/or loaded runout of the wheel/tire assembly.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.