Closure fasteners – Magnetic
Patent
1999-09-16
2000-10-24
Dayoan, B.
Closure fasteners
Magnetic
292DIG55, E05C 1756
Patent
active
061355151
ABSTRACT:
A shear-type electromagnetic lock is disclosed whose armature can approach the electromagnet from any transverse direction, which can be mounted in any orientation with respect to gravity, and which does not require any door position sensing means. The armature includes a pair of standoffs in the form of conically projecting buttons affixed thereto, the buttons projecting from the plane of contact between the armature and the electromagnet. The buttons have a base angle of 60-80 degrees adjacent the armature, and an angle of 45 degrees distal from the armature, and terminate in a smoothly rounded point. The armature is mounted to a sub-plate via counteracting springs such that the armature "floats" on the sub-plate, with the distance between the armature and the sub-plate being adjustable via adjusting screws. A matching electromagnet assembly for mounting to a door frame includes matching conical depressions positionally corresponding to the conical buttons such that the buttons seat into the depressions when the armature and electromagnet are properly aligned. The buttons and recesses are arranged in a staggered pattern.
REFERENCES:
patent: 2381075 (1945-08-01), Nelsen
patent: 2815235 (1957-12-01), Teetor
patent: 3354581 (1967-11-01), Dimmitt
patent: 4439808 (1984-03-01), Gillham
patent: 4487439 (1984-12-01), McFadden
patent: 4562665 (1986-01-01), Blackston
patent: 4826223 (1989-05-01), Geringer et al.
patent: 4840411 (1989-06-01), Sowersby
patent: 4941235 (1990-07-01), Aoki
patent: 4981312 (1991-01-01), Frolov
patent: 4986581 (1991-01-01), Geringer
patent: 5000497 (1991-05-01), Geringer et al.
patent: 5016929 (1991-05-01), Frolov
patent: 5033779 (1991-07-01), Geringer et al.
patent: 5141271 (1992-08-01), Geringer et al.
patent: 5184855 (1993-02-01), Waltz et al.
patent: 5184856 (1993-02-01), Waltz
patent: 5261713 (1993-11-01), Fischback
patent: 5709421 (1998-01-01), Gillham
Frallicciardi Vincent J.
Roth Thomas E.
Dayoan B.
Estremsky Gary
Securitron Magnalock Corp.
LandOfFree
Multi-directional self-aligning shear type electromagnetic lock does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-directional self-aligning shear type electromagnetic lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-directional self-aligning shear type electromagnetic lock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1956632