Magnetic lifting apparatus

Details Magnetic lifting apparatus Magnetic lifting apparatus

1993-12-01

1995-07-25

Cherry, Johnny D.

Handling: hand and hoist-line implements

Magnet

335288, 335295, B66C 104, H01F 704

Patent

active

054356130

ABSTRACT:
A magnetic lifting apparatus includes a plurality of magnetic substances, a plurality of pairs of first permanent magnets, a plurality of rotors having a pair of second permanent magnets, respectively, and an on/off switch handle connected to the rotors whereby upon rotating the on/off switch handle, the magnetic apparatus has a magnetic activity or not so as to attach to or release from the object.

REFERENCES:
patent: 2471067 (1949-05-01), Hitchcock
patent: 3812629 (1974-05-01), Campbell
patent: 4055824 (1977-10-01), Baermann
patent: 4250478 (1981-02-01), Cardone et al.
patent: 4379277 (1983-04-01), Braillon

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