Model 1911 type firearm safety lock
View Patent ↗A firearm safety lock for an automatic pistol such as the Model 1911 firearm is disclosed. The safety lock includes a means of arresting the operation of the main trigger or hammer spring in the pistol grip of the firearm to prevent movement of the hammer, thereby locking the gun in a safe condition. A means and a method is disclosed for locking a pistol in a sale condition by arresting the movement of the hammer spring buffer through insertion of a locking shaft through the pistol grip housing which can be keyed to prevent unauthorized removal of the locking shaft. The disclosed invention may be used on newly manufactured firearms or provides a method to easily convert an existing firearm without permanent modification or damage to the firearm.
1. An apparatus for disabling a firearm, the firearm including a hammer having a hammer strut extending therefrom, the hammer movable between a cocked position and an uncocked position, a trigger assembly for releasing the hammer from the cocked position upon actuation of the trigger assembly, and a spring positioned within a well of a spring housing, the spring being tensioned upon cocking of the hammer to provide energy to the hammer, the apparatus comprising:
a spring cap having a head portion positioned on the spring, the hammer strut having an end abutting said head portion of said spring cap;
a body received within a bore in the spring housing, and if the hammer is in the uncocked position said body is movable from a first position to a second position wherein said body blocks movement of said head portion of said spring cap.
2. The apparatus of claim 1 , wherein said head portion includes:
a cup portion, said cup portion receiving the end of the hammer strut;
a shoulder abutting said spring opposite said cup portion; and
a groove between said cup portion and said shoulder.
3. The apparatus of claim 2 , wherein said body is cylindrical and has a first end, an opposite second end and a length extending therebetween.
4. The apparatus of claim 3 , wherein said second end is positioned adjacent said spring cap when said body is in said first position.
5. The apparatus of claim 2 , wherein said body is received within said groove of said spring cap when said body is in said second position and the hammer is in the uncocked position.
6. The apparatus of claim 2 , wherein at least a portion of said body is threaded and rotatably received within said bore for movement from said first position to said second position.
7. The apparatus of claim 1 , wherein said body is cylindrical and has a first end, an opposite second end and a length extending therebetween.
8. The apparatus of claim 2 , wherein said first end of said body includes means for engaging a tool for moving said body between said first and second positions.
9. An apparatus for disabling a firearm, said firearm including a hammer movable between a cocked position and an uncocked position, a trigger assembly connected with the hammer for releasing the hammer from the cocked position upon actuation of the trigger assembly, and a spring positioned within a well of a spring housing, the spring being tensioned upon cocking of the hammer to provide energy to the hammer upon actuation of the trigger assembly, the apparatus comprising:
a hammer strut connected at one end with the hammer and having a length extending to an opposite end;
a spring cap having a head portion positioned on the spring, the opposite end of said hammer strut abutting said spring cap;
a disablement mechanism received within a bore in the spring housing, said disablement mechanism movable from a first position where the firearm is enabled to a second position wherein said disablement mechanism contacts said head portion of said spring cap where the firearm is disabled.
10. The apparatus of claim 9 , wherein said head portion includes a top surface abutting the opposite end of said hammer strut, an opposite shoulder abutting said spring, and a groove between said top surface and said shoulder.
11. An apparatus for disabling a firearm, the firearm having a hammer movable between a cocked position and an uncocked position, and a spring positioned within a well of a spring housing, the spring being tensioned when the hammer is cocked, the apparatus comprising:
a spring cap having a head portion positioned on the spring, the hammer being connected with said spring cap; and
a body received within a bore formed in the spring housing, said body having a first end and an opposite second end and a length extending therebetween, said body being movable from a first position where the firearm is enabled to a second position wherein contact between said body and said head portion of said spring cap disables the firearm.