Closure fasteners – Magnetic
Patent
1979-05-30
1981-06-02
Lyddane, William E.
Closure fasteners
Magnetic
292DIG4, E05C 1916
Patent
active
042707811
ABSTRACT:
An opening and closing apparatus for doors and the like includes magnets and metal plates which are located superposed inside a casing. Either the magnets or the metal plates are adapted to be slidable inwardly and outwardly of the casing and the other of the magnets or metal plates is secured to the inside of the casing. The metal plates are shaped so that the slidable element overlaps a great amount with the secured element when the slidable element is located inside the casing, and has a reduced or substantially no overlap with the secured element when the slidable element is located on the outside of the casing. The slidable element is mounted on an engaging member which is urged outwardly from the casing by a spring which is located adjacent the opening of a box-like body, there being a locking assembly provided which includes a lock which is capable of locking the engaging member when it is manually pushed and releasing it when it is manually pushed a second time. A magnetic member is mounted on the door or the like at a position opposite to the locking assembly.
REFERENCES:
patent: 3492037 (1970-01-01), Hutchinson
patent: 3934909 (1976-01-01), Van Natter
patent: 4026588 (1977-05-01), Bisbing et al.
Futaba Kinzoku Kogyo Kabushiki Kaisha
Lyddane William E.
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