Magnet base for tool

Details Magnet base for tool Magnet base for tool

1981-05-18

1983-07-12

Harris, George

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Work or object holding type

335302, H01F 720

Patent

active

043933637

ABSTRACT:
A magnet base for a tool, comprises: a yoke made up of two symmetrical parts which form a cylindrical hole; a cylindrical magnet made of ferrite material which is rotatably inserted in the cylindrical hole; and a handle unit engaged with the magnet to turn the latter so that the magnet base is placed in magnetically active state and in magnetically inactive state.

REFERENCES:
patent: 2280437 (1942-04-01), Levesque
patent: 3142787 (1964-07-01), Levesque
patent: 3812629 (1974-05-01), Campbell
patent: 4251791 (1981-02-01), Yanagisawa et al.

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