Calibration test stand and method for hydraulic wrenches
US4322965A · kind A · utility
7Cited by
6References
14Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Feb 25, 1980 |
| Grant date | Apr 6, 1982 |
| Priority date | — |
| Expiry date | Feb 25, 2000 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01L25/003
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A calibration test stand and method is presented for calibration of hydraulically powered torque wrenches. A hydraulic wrench to be powered by a pump is directly calibrated with the pump so that the pressure level of the pump can be accurately set to obtain the desired output torque level.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.