Magnetic drill press
US9452522B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 16, 2015 |
| Grant date | Sep 27, 2016 |
| Priority date | — |
| Expiry date | Sep 16, 2035 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T408/6786
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A magnetic base for selectively magnetically latching to a ferromagnetic surface includes a magnet holder, a fixed magnet assembly supported within the magnet holder, a movable magnet assembly supported within the magnet holder, and a transmission. The transmission includes an input, an output coupled to the movable magnet assembly for moving the rotatable movable assembly relative to the fixed magnet assembly through a predetermined range of motion, and a plurality of transmission elements positioned between the output and the input. The transmission elements are configured to provide a variable mechanical advantage between the output and the input during at least a portion of the predetermined range of motion.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.