Ferromagnetic fastener locating device
US10197639B1 · kind B1 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 2, 2011 |
| Grant date | Feb 5, 2019 |
| Priority date | — |
| Expiry date | Mar 21, 2034 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01V3/165
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
For locating a ferromagnetic object, a device has a non-magnetic housing with a perimeter wall, a front surface, and a rear surface. The perimeter wall defines a chamber within the housing. A stop element is located within the chamber between the front surface and the rear surface. A magnet element is housed within the chamber and is movable between a resting position, where the magnet element is proximate the stop element, and an active position, where the magnet element is proximate the front surface. The device has a mechanism for returning the magnet element to the resting position in the absence of a ferromagnetic object located proximate the front end of the device.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.