Magnetic door catch

Claim 1

A MAGNETIC DOOR LATCH CONSTRICTION FOR A DOOR INCLUDING A SWINGING DOOR ELEMENT AND A FIXED JAMB ELEMENT, ONE OF SAID ELEMENTS HAVING A CONTACT ARMATURE PLATE AND THE OTHER ELEMENT HAVING A CATCH COMPRISING A PLASTIC BOX-LIKE ENCLOSURE HAVING CLOSED TOP AND SIDE WALLS AND OPEN END AND BOTTOM WALLS, SAID SIDE WALLS HAVING EDGES ADJACENT THE PLATE, AND ATTACHMENT FEET MOUNTED ON THE LOWER SIDE EDGES OF SAID SIDE WALLS AND EXTENDING INWARDLY TRANNVERSELY AND A MAGNETIC WAFER MOUNTED MOVABLY BETWEEN SAID WALLS AND PROJECTING BEYOND THE EDGES OF SAID WALLS SO AS TO CONTACT SAID PLATE BEFORE THE PLATE CONTACTS THE EDGES OF THE SIDE WALLS, AND MEANS FORMED IN SAID ENCLOSURE TO RETAIN THE WAFER IN POSITION, THE SIDE EDGES OF SAID SIDE WALLS ADJACENT TO AND CONTACTING THE PLATE EXTENDING OBLIQUELY DOWNWARDLY FROM THE TOP WALL TOWARD THE ATTACHMENT FEET SO THAT THE EDGES THEREOF ADJACENT THE ATTACHMENT FEET WILL CONTACT THE PLATE AFTER A SLIGHT MOVEMENT OF THE MAGNETIC WAFER, SAID OBLIQUE DIRECTION BEING TOWARD THE PLATE AWAY FROM THE TOP WALL AND SAID MAGNETIC WAFER INCLUDING A CENTRAL MAGNETIC ELEMENT AND UPPER AND LOWER POLE PIECES AND HAVING A CENTRAL OPENING EXTENDING THERETHROUGH.