Buckles – buttons – clasps – etc. – Having magnetic fastener
Patent
1987-02-24
1988-07-05
Sakran, Victor N.
Buckles, buttons, clasps, etc.
Having magnetic fastener
2922515, 335285, E05C 1916
Patent
active
047545321
ABSTRACT:
A variable strength magnetic holding assembly as disclosed. It includes an attachment plate with a section made of magnetic material and a holding and support assembly adapted to magnetically hold the attachment plate thereon. An adjustment knob is used to vary the magnetic coupling between the attachment plate and the holding and support assembly.
REFERENCES:
patent: 2812203 (1957-11-01), Scholten
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patent: 3086268 (1963-04-01), Chaffin, Jr.
patent: 3641693 (1972-02-01), Pinnow
patent: 4031652 (1977-06-01), Johnson
patent: 4422137 (1983-12-01), Watts
patent: 4455719 (1984-06-01), Morita
patent: 4536732 (1985-08-01), Schindl et al.
Berrang Peter G.
Thomson Richard E.
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