Electricity: magnetically operated switches – magnets – and electr – Magnets and electromagnets – Magnet structure or material
Patent
1978-07-28
1980-01-22
Harris, George
Electricity: magnetically operated switches, magnets, and electr
Magnets and electromagnets
Magnet structure or material
335303, H01F 702
Patent
active
041852621
ABSTRACT:
A magnet device having magnetic poles of opposite polarities on the same surface comprises a plurality of plastic matix magnet elements providing a magnetic circuit arranged to concentrate the magnetic energy of the magnet elements so as to derive a great magnetic force from the magnetic poles.
REFERENCES:
patent: 3191106 (1965-06-01), Baermann
patent: 3418613 (1968-12-01), Trikius
patent: 3942147 (1976-03-01), Josephson
Funakoshi Yasutomo
Hiya Kohji
Itoh Mitsuru
Sakairi Tadashi
Watanabe Sadao
Harris George
Matsushita Electric - Industrial Co., Ltd.
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