Power cutting tool with proximity sensing system
US8122798B1 · kind B1 · utility
30Cited by
21References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 4, 2009 |
| Grant date | Feb 28, 2012 |
| Priority date | — |
| Expiry date | Nov 21, 2029 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T83/773
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A power cutting tool includes a cutting surface, a conductive structure, and first electrode matrix comprising an array of electrical conductors. A moveable blade used to cut an object is located on the cutting surface. When at least one electrical conductor of the first electrode matrix is energized relative to the conductive structure, an electric field extends between the at least one electrical conductor and the conductive matrix to detect the presence of an object in proximity to the electric field.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.