Patent ID: 8707521

Claim:
An improvement to a door having hinges mortised into a door jamb, the improvement comprising a door jammer mounted in a space between the door and the door jamb, the door jammer comprising: a pivoting pair of wings connected by a respective collar of each wing by a common vertical pivot pin; a first member of the pivoting pair having a fastener for attaching the first member to an edge of the door; said edge of the door also having a hinge butt plate affixed thereto; a second member of the pivoting pair having a fastener for attaching the second member to the door jamb; a collar of the second member is stationary and has a lower segment rotationally engaged in an upper segment of the first member; a collar of the first member having a female locking bushing installed therein so as to rotate with the collar of the first member; said common vertical pivot pin slidingly engaged in the collar of the second member and having a top button protruding above the collar of the second member; said pivot pin having a locking gear fixedly mounted thereto; and wherein pushing the top button down engages the locking gear at a desired angle between the first member and the second member in the female locking bushing, thereby locking the door at the desired angle and wherein the common vertical pivot pin further comprises a lower button which protrudes below the collar of the first member when the top button is pushed down, thereby enabling the lower button to be pushed up to disengage the locking gear from the female locking bushing.