Oil pulse tool
US8925645B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | May 8, 2009 |
| Grant date | Jan 6, 2015 |
| Priority date | — |
| Expiry date | Apr 25, 2032 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25B23/1405
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
An oil pulse tool includes a motor, an oil pulse unit, an output shaft on which a front end tool is attached, a torque detecting sensor for detecting generation of an impact torque, and an operating portion configured to detect a time period between a first impact torque detected by the torque detecting sensor and a second impact torque detected by the torque detecting sensor. The second impact torque is smaller than the first impact torque. The operating portion carries out a notification when the time period between the first impact torque and the second impact torque is less than a predetermined evaluation value for the time period between the first impact torque and the second impact torque.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.