Closure fasteners – Magnetic
Patent
1986-12-22
1989-04-18
Smith, Gary L.
Closure fasteners
Magnetic
335295, E05C 1756, E05C 1916
Patent
active
048220850
ABSTRACT:
A rotatably adjustable two magnet door latch system is presented. Ferro magnetic latching means are normally coupled to the edge of a door stop. A multi-part door latch assembly is coupled to the edge of the door adjacent the stop when the door is closed.
The assembly comprises a first thin magnet having a straight edge and an opposite concave edge. A second generally planar thin magnet has a first convex edge of radius equal to and fitting into the concave edge of the first magnet. Rotating means rotate the second magnet. Magnetic flux is a function of the length of arcs of the magnets that are adjacent. One or more flux plates transmit flux from the magnets to the stop and a housing modularizes the assembly for easy installation and protection against dirt.
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Nicholson Eric K.
Smith Gary L.
Texim International
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