Door hinge assembly

Abstract

A door hinge assembly that allows installation and removal of a door by one person. The door hinge assembly comprises: (1) a top hinge plate for attachment to a door comprising a top leaf and a top tubular member protruding from a vertical edge of the top leaf; (2) a bottom hinge plate for attachment to a door jamb comprising a bottom leaf, a bottom tubular member protruding from a vertical edge of the bottom leaf, and a hinge pin having a bottom portion and a top portion, the bottom portion being fixed inside the bottom tubular member, the top portion extending beyond the bottom tubular member for insertion into the top tubular member and having a threaded end; and (3) a top cap having an internal thread that is engageable with the threaded end of the hinge pin.

1 . A door hinge assembly comprising: 
 a top hinge plate for attachment to a door, said top hinge plate comprising a top leaf provided with at least one mounting hole, and a top tubular member protruding from a vertical edge of said top leaf;    a bottom hinge plate for attachment to a door jamb, said bottom hinge plate comprising a bottom leaf provided with at least one mounting hole, a bottom tubular member protruding from a vertical edge of said bottom leaf, and a hinge pin having a bottom portion and a top portion, said bottom portion of said hinge pin being fixed inside said bottom tubular member, said top portion of said hinge pin having an externally threaded end and extending beyond said bottom tubular member for a length so that when said hinge pin is inserted through said top tubular member for assembling said door hinge assembly, said externally threaded end is exposed beyond said top tubular member; and    a top cap having an internal thread, said top cap being engageable with said externally threaded end of said top portion of said hinge pin.    
   
   
       2 . The door hinge assembly of  claim 1 , wherein said top and bottom leaves each have a substantially rectangular or square configuration.  
   
   
       3 . The door hinge assembly of  claim 1 , wherein said top and bottom leaves each have a plurality of mounting holes therethrough.  
   
   
       4 . The door hinge assembly of  claim 1 , further comprising a bottom cap permanently mounted at an end of said bottom portion of said hinge pin.  
   
   
       5 . The door hinge assembly of  claim 1 , wherein said top tubular member and said bottom tubular member are substantially equal in length.  
   
   
       6 . The door hinge of  claim 1 , wherein said bottom portion of said hinge pin is permanently fixed inside said bottom tubular member so that it cannot be removed or turned in the bottom tubular member.  
   
   
       7 . The door hinge of  claim 1 , wherein in an assembled condition, said top tubular member is supported by said bottom tubular member and pivots about said hinge pin.  
   
   
       8 . The door hinge of  claim 1 , which is assembled by inserting said top portion of said hinge pin into said top tubular member of said top hinge plate and engaging said top cap with said externally threaded end of said hinge pin.  
   
   
       9 . The door hinge of  claim 1 , wherein said top cap is a ball tip.  
   
   
       10 . The door hinge of  claim 4 , wherein said bottom cap is a ball tip.  
   
   
       11 . The door hinge of  claim 1 , wherein said tubular members extend from said hinge leaves and are curved to form said tubular members.