Patent ID: 7108300

Claim:
A mortise lock, comprising: a housing including two principal side walls and edge walls extending between and interconnecting the side walls, one of the side walls and one of the edge walls of the housing each having at least one opening; a latch bolt mounted in the housing for movement with respect to the housing, the latch bolt including a head portion, a rod portion, the rod portion connected to the head portion for relative axial movement of the head portion along the rod portion, and a securing element for releasably connecting the head portion and the rod portion in either a first relative axially connected position or a second relative axially connected position where the head and rod portions of the latch bolt are rotatable relative to one another, wherein the head and rod portions of the latch bolt in the first axially connected position are movable together relative to the housing so that the head portion at least partially non-rotatably projects outwardly from the opening in the edge wall of the housing in an extended position of the latch bolt and the head portion is inside the housing in a retracted position of the latch bolt, and in the second axially connected position the head portion of the latch bolt extends further outwardly from the opening in the edge wall of the housing so that the head portion is rotatable relative to the housing and the head portion may be rotated to a selected position and returned to the first axially connected position of the head and rod portions of the latch bolt; and means for biasing the latch bolt outwardly of the housing.