Actuators for power tool safety systems
US10384281B2 · kind B2 · utility
1Cited by
22References
17Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 2, 2012 |
| Grant date | Aug 20, 2019 |
| Priority date | — |
| Expiry date | May 23, 2038 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B2211/8855
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
Fast-acting and low-inertia actuators useable in various applications where a high force must be applied very quickly are disclosed. Power tools with detection systems configured to detect a dangerous condition between a person and a cutting tool are disclosed. In power tools, for example in a woodworking machine, a fast-acting and low-inertial actuator as disclosed herein can be used to retract a blade upon detection of a dangerous condition by a detection system. The actuator includes a charge of pressurized fluid and one or more electromagnets to selectively retain or release the pressurized fluid.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.