Buckles – buttons – clasps – etc. – Cord and rope holders – Pivoted part
Patent
1980-03-04
1982-07-20
Sakran, Victor N.
Buckles, buttons, clasps, etc.
Cord and rope holders
Pivoted part
24136R, 24201B, 292252, 335236, 335295, H01F 312
Patent
active
043398537
ABSTRACT:
A magnetic decoupler for use with an antitheft device is disclosed. In one preferred embodiment, the decoupler includes a composite permanent magnet comprising an annular permanent magnet that may be of ceramic and a second, preferably disc-shaped permanent magnet, which is preferably more strongly magnetized than the annular magnet and which preferably comprises a rare earth element. The two magnets are coaxially aligned with but axially displaced from each other and are oriented with the opposite polarity so as to create a region of especially great magnetic flux in the bore of the annular magnet. A cover plate, preferably of cold-rolled steel, may be provided adjacent the face of the annular magnet that is remote from the second magnet to further concentrate the flux in the bore.
REFERENCES:
patent: 2269149 (1942-01-01), Edgar
patent: 3164756 (1965-01-01), Steingroever
patent: 3858280 (1975-01-01), Martens
patent: 3911534 (1975-10-01), Martens et al.
patent: 3947930 (1976-04-01), Martens et al.
patent: 3974581 (1976-08-01), Martens et al.
patent: 4000543 (1977-01-01), Paskert
patent: 4012813 (1977-03-01), Martens et al.
patent: 4104622 (1978-08-01), Van Niel
patent: 4156302 (1979-05-01), Van Niel
patent: 4265002 (1981-05-01), Hosken
Permag Corporation
Sakran Victor N.
LandOfFree
Magnetic decoupler 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 decoupler, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic decoupler will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-244680