Patent ID: 7603746
Filing Date: 2009-10-20
Classification: E05D,E05Y,Y10T

Abstract:
1. An adjustable butt hinge apparatus for mounting a door in a door frame, comprising a door frame hinge plate, an upward opening cylindrical pin-receiving knuckle attached to and extending from a lower part of one side edge of the door frame hinge plate, the pin-receiving knuckle having an obstructed lower end, the pin-receiving knuckle having a cylindrical bore, a door hinge plate for attaching to an edge of a door, a cylindrical downward opening pin-holding knuckle attached to and extending from a side edge of the door hinge plate, the downward opening pin-holding knuckle having a downward opening cavity with an upper closed end, a threaded hole extending vertically through the upper closed end and a vertical adjusting screw having proximal and distal ends and threads mated in the threaded hole for adjustably extending the distal end of the vertical adjusting screw in directions into and out of the cavity by turning the proximal end, an eccentric pin having offset cylindrical upper and lower sections offset on parallel axes, with respective upper and lower ends, the upper section being inserted in the downward opening cavity of the pin-holding knuckle, with the upper end of the eccentric pin contacting the distal end of the vertical adjusting screw for raising and lowering the door frame hinge plate with respect to the upper section of the pin, and raising and lowering the door with respect to the frame, a tapped hole extending laterally through a wall of the pin-holding knuckle, and a lateral screw threaded in the tapped hole for engaging the upper section of the eccentric pin and preventing turning of the upper section in the pin-holding knuckle, for loosening the lateral screw and turning the pin in the pin-holding knuckle and adjusting the door hinge plate side to side and in and out with respect to the door frame hinge plate, and thereby adjusting the door with respect to the frame before retightening the lateral screw and fixing the door in adjusted position.