Electricity: electrical systems and devices – Control circuits for electromagnetic devices – Systems for magnetizing – demagnetizing – or controlling the...
Patent
1980-02-07
1983-08-16
Rubinson, G. Z.
Electricity: electrical systems and devices
Control circuits for electromagnetic devices
Systems for magnetizing, demagnetizing, or controlling the...
361156, 335289, H01F 704
Patent
active
043994822
ABSTRACT:
A magnetic holder for releasably retaining a ferromagnetic object, having a core member composed of a semi-hard magnetic material magnetized permanently by an instantaneous capacitor discharge current passing in a first direction through coils wound on the core member to permanently retain the object. The capacitor discharge current is passed in a second direction opposite to the first through the coils to demagnetize the previously magnetizer core member and allow the object to be magnetically released.
REFERENCES:
patent: 2348967 (1944-05-01), Duby
patent: 2421716 (1947-06-01), Rose
patent: 2445459 (1948-07-01), Snyder
patent: 3093774 (1963-06-01), Christianson
patent: 3209891 (1965-10-01), Littwin
patent: 3303398 (1967-02-01), Barta
patent: 3783344 (1974-01-01), Ono et al.
patent: 3798581 (1974-03-01), Anderson
patent: 3806336 (1974-04-01), Kaneko et al.
patent: 3954519 (1976-05-01), Inoue
patent: 3969657 (1976-07-01), Oettinghaus
patent: 3989556 (1976-11-01), Iwata et al.
patent: 4171978 (1979-10-01), Inoue et al.
Dubno Herbert
Inoue-Japax Research Incorporated
Ross Karl F.
Rubinson G. Z.
LandOfFree
Magnetic holder does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic holder, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic holder will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-817501