Closure fasteners – Magnetic
Patent
1990-01-25
1992-05-19
Gall, Lloyd A.
Closure fasteners
Magnetic
292DIG53, 335294, E05C 1916
Patent
active
051141957
ABSTRACT:
An apparatus for locking doors and gates is disclosed. The apparatus generally comprises a housing containing a permanent magnet and an electromagnet for locking and unlocking the door or gate and contact means on the door or gate for engaging the permanent magnet in order to lock the door or gate. The electromagnet, when energized, has a magnetic field opposing the magnetic field of the permanent magnet to magnetically disengage the permanent magnet from the contact means.
REFERENCES:
patent: 2801870 (1957-08-01), Davey
patent: 2871676 (1959-02-01), Miller et al.
patent: 3232654 (1966-02-01), Israelson et al.
patent: 3413026 (1968-11-01), Kendrick et al.
patent: 3600025 (1971-08-01), Brainard
patent: 3658370 (1972-04-01), Wang
patent: 4339629 (1982-07-01), Stanmore
patent: 4567741 (1986-02-01), Trempala
patent: 4656850 (1987-04-01), Tabata
patent: 4669766 (1987-06-01), Hanchett, Jr. et al.
patent: 4696500 (1987-09-01), Zunkel
patent: 4703962 (1987-11-01), Kelly et al.
patent: 4991887 (1991-02-01), Hahn
Hunter James L.
Martin Ronald R.
Gall Lloyd A.
Southwire Company
Tate Stanley L.
Wallis, Jr. James W.
LandOfFree
Tamper resistant magnetic gate 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 Tamper resistant magnetic gate lock, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Tamper resistant magnetic gate lock will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2414139