Convertible door lock latch mechanism

A dead latch assembly for a door comprising:

• a bolt housing;
• a bolt slidably attached to a drawbar by a dead latch stop;
• a dead latch slidably mating with said bolt;
• wherein said bolt, said dead latch plunger, and dead latch stop are housed in said bolt housing and biased in an extended position;
• wherein said dead latch stop provides a dynamic link between said drawbar and said bolt such that when said dead latch plunger is depressed, said dead latch stop engages said bolt housing preventing said bolt from being depressed.

A method of converting a dead latch assembly to a spring latch assembly comprising the steps of:

• a) providing a dead latch assembly;
• b) removing a dead latch plunger;
• c) removing a dead latch plunger spring;
• d) removing a deadlatch stop;
• and
• e) attaching a pull component to a bolt of said dead latch assembly.

A spring latch assembly for a door comprising:

• a bolt;
• a drawbar slidably attached to said bolt by a pull component;
• and
• wherein said bolt, drawbar, and pull component are housed in a bolt housing;
• wherein said bolt and is biased in an extended position at least partly protruding from said bolt housing.

A method of converting a spring latch assembly to a dead latch assembly comprising the steps of:

• a) providing a spring latch assembly;
• b) removing a pull component
• c) providing a dead latch plunger;
• d) providing a dead latch plunger spring;
• e) providing a deadlatch stop;
• f) attaching said dead latch stop to a bolt of said spring latch assembly;
• g) slidably inserting said dead latch plunger into a slot of said bolt;
• h) inserting said spring into a bolt housing of said spring latch assembly;
• and
• i) inserting said bolt, dead latch plunger, and dead latch stop into said bolt housing.

A lock assembly for a door comprising:

• a chassis assembly mounted in a bore of said door;
• a door latch assembly operably connected to said chassis assembly for retraction and extension of a bolt;
• and
• a handle mounted on a spindle on either side of said chassis assembly;
• wherein rotational motion imparted on one of said handles is converted to linear motion of said slide member within said chassis assembly in order to retract and extend said bolt of said door latch assembly;
• wherein said door latch assembly comprises a dead latch stop connected to a bolt of said door latch assembly.

A restoring lock latch assembly comprising:

• a bolt;
• a drawbar attached to said bolt by an attaching component;
• and
• a restore component positioned between said bolt and said drawbar in a manner causing said drawbar to retract when said bolt is depressed.