US 4,398,366 AGranted

Gun lock

OwnerJohn J. Wernickiinventor

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Abstract

A gun lock consisting of three parts which engage each other to provide a shaft extending through the gun barrel and the bullet chamber, the shaft being held in position by means of a combination lock. A dummy round occupies the bullet chamber and has a hollow cylindrical front portion with a groove for engaging the locking balls which are disposed on the inner end of an intermediate rod which extends through the bore of the gun barrel. The intermediate rod has a slideably moveable central actuator with a cam end portion for forcing the locking balls radially outward to engage the groove of the dummy round, and semi-circular recesses into which the locking balls can fall when the actuator is pushed in to permit insertion or removal of the intermediate rod. The combination lock secures the actuator to prevent it from being moved inward to release the intermediate member from the dummy round.

Claims7

Dependent claims

A gun lock for a gun having a barrel with a generally cylindrical bore therein and a generally cylindrical chamber for receiving a round of ammunition in alignment with said bore, said lock comprising:

a dummy round rear member dimensioned to fit in said chamber, said rear member having a hollow open forward end and locking ball receiving recess means contiguous with the wall thereof adjacent said open end;
a hollow intermediate rod having an axially movable elongated actuating member therein, said rod being dimensioned to fit in said bore and having an open outer end and an opposite inner end, said inner end having at least two locking balls therein and hole means for permitting said balls to move radially between (i) a free position wherein said balls are disposed within said rod and (ii) a locking position wherein said balls extend from the surface of said rod, while restraining said balls against axial movement with respect to said rod,
said actuating member having a lock-engaging portion extending from said outer end of said intermediate rod, and a cam portion adjacent the inner end of said rod for engaging said locking balls to (i) urge said balls toward the locking position thereof when said lock-engaging portion of said actuating member is moved away from said inner end of said rod, and (ii) permit said balls to return to the free position thereof when said lock-engaging portion of said actuating member moves toward said inner end of said rod, said inner end of said rod being dimensioned to closely fit in said open end of said rear member so that said balls engage said locking ball receiving recess means in the locking position thereof;
and
a lock abutting said outer end of said intermediate rod for detachably engaging said lock-engaging portion of said actuating member, to prevent axial movement thereof toward the inner end of said intermediate rod, thus insuring that said balls remain in locking engagement with said locking ball receiving recess means of said rear member,
whereby said gun lock occupies said chamber and bore to immobilize said chamber and insure there is no live round therein.

3 more elements

A gun lock for a gun having a barrel with a bore therein and a chamber for receiving a round of ammunition in alignment with said bore, said lock comprising:

a dummy round dimensioned to fit in said chamber and having a hollow open forward end and locking ball receiving recess means contiguous with the wall thereof adjacent said open end;
a hollow intermediate rod having an axially movable actuating member therein, said rod being dimensioned to fit in said bore and having an outer end and an opposite inner end, said inner end having at least two locking balls therein and means for permitting said balls to move radially between (i) a free position wherein said balls are disposed within said rod and (ii) a locking position wherein said balls extend from the surface of said rod, while restricting the axial movement of said balls,
said actuating member having a lock-engaging portion adjacent said outer end of said intermediate rod, and means adjacent the inner end of said rod for engaging said locking balls to (i) urge said balls toward the locking position thereof when said lock-engaging portion of said actuating member is moved away from said inner end of said rod, and (ii) permit said balls to return to the free position thereof when said lock-engaging portion of said actuating member moves toward said inner end of sad rod, said inner end of said rod being dimensioned to fit in said open end of said dummy round so that said balls engage said locking ball receiving recess means in the locking position thereof;
and
locking means abutting said outer end of said intermediate rod for detachably engaging said lock-engaging portion of said actuating member, to prevent axial movement thereof toward the inner end of said intermediate rod, thus insuring that said balls remain in locking engagement with said locking ball receiving recess means of said dummy round,
whereby said gun lock occupies said chamber and bore to immobilize said chamber and insure there is no live round therein.

3 more elements

Dependencies are inferred from the claim text.