US 4,787,288 A · Rapid fire trigger activator

Abstract

A Rapid Fire Trigger Activator and accessory gun stock used to convert any semi-automatic carbine, rifle, or shot gun to nearly the firing capability of an automatic weapon which includes, a main side plate, having a pivot pin; a slide tube; a fore end hand grip; a slotted cam plate; a transfer bar; a swing out safety block; a trigger activator having a spring load plunger pin; and a nylon bearing block. When the fore end hand grip is pumped back and forth it will cause the transfer bar to pivot about the pivot pin which in turn will cause the trigger activator to be displaced towards the weapons trigger by the swing out safety block due to the up and down displacement of a transfer bar slot pin as it follows the cam slot. The trigger of the weapon is always fully accessible and functional whether or not the safety block is in place or not. The swing of the safety block is fitted with a spring loaded plunger pin that allows for its adjustment to various types of weapon trigger configurations and different types of weapon sear actions. On the forward portion of the main side plate is a nylon bearing block which has a frictional slide lock which functions as an additional safety feature to prevent the unintentional movement of the slotted cam plate due to the accidental displacement of the fore end hand grip.

Claims20

Dependent claims

A rapid fire trigger activator apparatus attached to a weapon's receiver used to convert any semi-automatic firearm, fired from the shoulder, into nearly the firing capability of an automatic weapon, comprising:

a main side plate being suitably attached to the receiver of the semi-automatic weapon, said main side plate having a fore end, rear, and top portions with a pivot pin located near its rear portion;
a fore end slide tube, said slide tube being suitably mounted at one end to the fore end portion of said main side plate and to the semi-automatic weapon's gun barrel at the opposite end;
a trigger activator having a trigger pin being disposed over the pivot pin of said main slide plate;
a transfer bar having an aperture at one end and a cam follower slot pin at the opposite end, said transfer bar being disposed unto the pivot pin of said main side plate through the aperture over said trigger activator;
a slotted cam plate having a cam recess into which the cam follower slot pin of said transfer bar is disposed, said slotted cam plate having a fore end portion;
a bearing block, said bearing block being suitably attached to the fore end portion of said main side plate so as to form a bearing surface for said slotted cam plate and said transfer bar;
a fore end hand grip, said fore end hand grip being suitably connected to the fore end portion of said slotted cam plate and mounted over said slide tube so as to allow it to move in a longitudinal back and forth direction, with reference to the semi-automatic weapon's gun barrel, along side slide tube;
and
a swing out safety block being suitably attached to said transfer bar near its aperture,
whereby the longitudinal movement of the fore end hand grip in a pumping back and forth action will cause the semi-automatic weapon to fire at nearly the firing capability of an automatic weapon.

7 more elements

A rapid fire trigger activator used to convert a Charter Arm AR-7 weapon from a semi-automatic into nearly the firing capability of an automatic weapon, comprising:

a main side plate being suitably attached to the receiver of the semi-automatic weapon, said main side plate having a fore end, rear and top portions with a pivot pin located near its rear portion, a horizontal spacer being attached to its top portion and a vertical spacer to its fore end portion.
a fore end slide tube, said slide tube being suitably mounted at one end to the fore end portion of said main side plate and to the semi-automatic weapon's gun barrel at the opposite end;
a trigger activator having a trigger pin being disposed over the pivot pin of said main slide plate;
a transfer bar having an aperture at one end and a cam follower slot pin at the opposite end, said transfer bar being disposed unto the pivot pin of said main side plate through the aperture over said trigger activator;
a slotted cam plate having a cam recess into which the cam follower slot pin of said transfer bar is disposed, said slotted cam plate having a fore end portion;
a bearing block, said bearing block being suitably attached to the fore end portion of said main side plate so as to form a bearing surface for said slotted cam plate and transfer bar;
a fore end hand grip, said fore end hand grip being suitably connected to the fore end portion of said slotted cam plate and mounted over said slide tube so as to allow it to move in a longitudinal back and forth direction, with reference to the semi-automatic weapon's gun barrel, along said slide tube;
a swing out safety block being suitably attached to said transfer bar near its aperture;
and
a gun stock assembly having a pistol grip and adjustable shoulder stock, said gun stock assembly being suitably mounted to said main side plate and to the semi-automatic weapon's receiver;
whereby the longitudinal movement of the fore end hand grip in a pumping back and forth action will cause the semi-automatic weapon to fire at nearly the firing capability of an automatic weapon.

8 more elements

A rapidl fire trigger activator used to convert a Ruger TM 10-22 weapon from a semi-automatic into a nearly the firing capability of an automatic weapon, comprising:

a main side plate being suitably attached to the receiver of the semi-automatic weapon, said main side plate having a fore end and rear portions with a pivot pin located near its rear portion;
a fore end slide tube said slide tube being suitably mounted at one end to the fore end portion of said main side plate and to the semi-automatic weapon's gun barrel at the opposite end;
a trigger activator having a trigger pin being disposed over the pivot pin of said main slide plate;
a transfer bar having an aperture at one end and a cam follower slot pin at the opposite end, said transfer bar being disposed unto the pivot pin of said main side plate through the aperture over said trigger activator;
a slotted cam plate having a cam recess into which the cam follower slot pin of said transfer bar is disposed, said slotted cam plate having a fore end portion;
a bearing block, said bearing block being suitably attached to the fore end portion of said main side plate so as to form a bearing surface for said slotted cam plate and transfer bar;
a fore end hand grip, said fore end hand grip being suitably connected to the fore end portion of said slotted cam plate and mounted over said slide tube so as to allow it to move in a longitudinal back and forth direction, with reference to the semi-automatic weapon's gun barrel, along said slide tube;
a swing out safety block being suitably attached to said transfer bar near its aperture;
and
a gun stock assembly having a pistol grip and adjustable shoulder stock, said gun stock assembly being suitably mounted to said main side plate and to the semi-automatic weapon's receiver;
whereby the longitudinal movement of the fore end hand grip in a pumping back and forth action will cause the semi-automatic weapon to fire at nearly the firing capability of an automatic weapon.

8 more elements

Dependencies are inferred from the claim text.

Rapid fire trigger activator

Life of this patent

Rapid fire trigger activator

Life of this patent

Abstract

Claims20