Patent · US Active

Magnetic base

US12030153B2 · kind B2 · utility

0Cited by

16References

17Claims

0Family size

Assignee

C. & E. FEIN GMBH · DE

Inventors

Ralf Seebauer · Bad Camberg, DE
Ralf Gosnik · Eislingen/Fils, DE

Key dates

Filing date	Jul 13, 2020
Grant date	Jul 9, 2024
Priority date	—
Expiry date	Mar 23, 2043

Classification

Technology area (CPC H)Electricity
CPC primaryH01F7/04
WIPO fieldMachine tools
WIPO sectorMechanical engineering

Abstract

A magnetic base for an electric power tool, in particular for a magnetic core drilling machine. The magnetic base having a base body that has a contact surface for contacting a workpiece to be machined, at least one first permanent magnet and at least one second permanent magnet arranged in the base body, the at least one and second permanent magnet having magnetic forces that interact to form a resulting holding force. The at least one first permanent magnet and the at least one second permanent magnet are supported in the base body and rotatable around its own rotation axis between a first position, in which the resulting holding force of the magnetic base is maximized, and a second position, in which the resulting holding force of the magnetic base is minimized.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.