Power tools
US7036605B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 17, 2003 |
| Grant date | May 2, 2006 |
| Priority date | — |
| Expiry date | Aug 11, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25F5/00
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A detector is disclosed that detects impact sounds, e.g., a hammer striking an anvil or oil pulses from an oil unit. The detector may comprise a receiver that selectively converts sound within a narrow frequency range into electric signals. Preferably, the impact sounds fall within the narrow frequency range of the receiver. A processor may be utilized to control the motor in order to stop the rotation of the hammer when a pre-determined number of impact sounds has been detected by the detector. In addition, the operating conditions can be set by a number of methods, including dials, sound sensors, keypads and remote control devices. Further, means for performing maintenance condition status checks are taught.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.