Concealed hinge assembly

A concealed hinge assembly, said concealed hinge assembly comprising in combination:

• an outer door hinge element consisting essentially of a flat front surface, a flat bottom surface, a configured back surface, a first side and a second side;
• said configured back surface having an upper flat surface having a first opening therethrough, said configured back surface having a lower flat surface having a threaded opening therein, there being a hinge pin opening through the outer door hinge assembly from said first side to said second side;
• there is an inner door hinge, said inner door hinge having a front, a back, a top, and said front having an outer door hinge element opening therein, said outer door hinge element opening having a back surface, said back surface having a second opening therethrough in an upper portion thereof, said inner door hinge having a first end and a second end and said inner door hinge having a third opening in said inner door hinge first end and in said inner door hinge second end;
• a concealed hinge, said concealed hinge having two ends, a top, a back, and a front, said top having at least two openings therethrough;
• said back having a hinge holder mounted therein near an outside edge thereof, said hinge holder consisting of a projecting hook structure, a front end of said hook structure having a third opening therethrough;
• an elongated hinge pin having a narrowed portion near a center thereof;
• a hinge pin retainer for insertion in said pin openings in said concealed hinge in addition to insertion across said narrow portion of said hinge pin retainer.