Semiautomatic handgun

Abstract

A handgun comprises a frame, a trigger pivotally mounted on the frame for movement between a rest position and a depressed position, and a hammer pivotally mounted on the frame in spaced relation to the trigger. A trigger bar is pivotally connected to the trigger and extends into operative relation with the hammer for cocking the hammer when the trigger is moved to the depressed position. A biasing member has a first end connected to the frame and a second end connected to the trigger bar for biasing the trigger bar in a direction into operative relationship with the hammer and in a direction for returning the trigger to the rest position from the depressed position.

What is claimed is:  
     
         1 . A semiautomatic handgun comprising: a frame; a trigger pivotally mounted on the frame for movement between a rest position and a depressed position; a hammer pivotally mounted on the frame in spaced relation to the trigger; a trigger bar pivotally connected to the trigger and extending into operative relation with the hammer for cocking the hammer when the trigger is moved to the depressed position; and a biasing member having a first end connected to the frame and a second end connected to the trigger bar for biasing the trigger bar in a direction into operative relationship with the hammer and in a direction for returning the trigger to the rest position from the depressed position.  
     
     
         2 . A semiautomatic handgun according to  claim 1;  wherein the semiautomatic handgun is a 9 mm semiautomatic handgun.  
     
     
         3 . A semiautomatic handgun according to  claim 1;  wherein the semiautomatic handgun has a length of about 4.7 inches, a height of about 3.6 inches, and a thickness of about 0.94 inches.  
     
     
         4 . A semiautomatic handgun according to  claim 3;  wherein the semiautomatic handgun is a 9 mm semiautomatic handgun.  
     
     
         5 . A semiautomatic handgun according to  claim 4;  wherein the semiautomatic handgun has an unloaded weight of about 12.3 ounces.  
     
     
         6 . A semiautomatic handgun according to  claim 3;  wherein the semiautomatic handgun has an unloaded weight in the range of about 12.0 to 12.5 ounces.  
     
     
         7 . A semiautomatic handgun according to  claim 1;  further comprising a barrel mounted on the frame and a grip for receiving the hand of a shooter; and wherein a line extending perpendicular to a central axis of the barrel intersects the grip at a preselected angle such that the barrel will be aligned axially with the forearm of the shooter when the grip is held in the hand with the top of the shooter's wrist level with the top of the forearm.  
     
     
         8 . A semiautomatic handgun according to  claim 5;  wherein the preselected angle is in the range of about 9 to 11 degrees.  
     
     
         9 . A semiautomatic handgun according to  claim 1;  wherein the frame has a first pin and a second pin adjacent the first pin; and wherein the biasing member has at least one first coil encircling the first pin of the frame and a first foot portion extending from the first coil at the first end of the spring and resting on the second pin of the frame.  
     
     
         10 . A semiautomatic handgun according to  claim 9;  wherein the biasing member has at least one second coil and a second foot portion extending from the second coil at the second end of the spring and connected to the trigger bar.  
     
     
         11 . A semiautomatic handgun according to  claim 1;  wherein the semiautomatic handgun has a length in the range of about 4.5 to 5.5 inches, a height in the range of about 2.9 to 4.4 inches, and a thickness in the range of about 0.85 to 0.98 inches.  
     
     
         12 . A semiautomatic handgun according to  claim 1;  wherein the semiautomatic handgun has a length in the range of about 4.5 to 5.0 inches, a height in the range of about 3.2 to 4.0 inches, and a thickness in the range of about 0.90 to 0.95 inches.  
     
     
         13 . A semiautomatic handgun comprising: a frame having a forward end, a rear end, a first locating recess disposed between the forward end and the rear end, and a second locating recess disposed at the rear end; a trigger pivotally mounted in the first locating recess of the frame for movement between a rest position and a depressed position; a hammer pivotally mounted in the second locating recess of the frame; a trigger bar pivotally connected to the trigger and movable in a first direction toward the first locating recess of the frame in response to depression of the trigger to operatively engage the hammer for cocking the hammer; a biasing member for biasing the trigger bar in a second direction away from the first locating recess and into operative relationship with the hammer and for returning the trigger to the rest position from the depressed position; and a deflector for deflecting the trigger bar in a direction generally transverse to the first and second directions when the trigger is returned by the biasing member to the rest position from the depressed position.  
     
     
         14 . A semiautomatic handgun according to  claim 13;  wherein the biasing member comprises a torsion spring having a first end connected to the frame and a second end connected to the trigger bar.  
     
     
         15 . A semiautomatic handgun according to  claim 14;  wherein the frame has a first pin and a second pin adjacent the first pin; and wherein the torsion spring has at least one first coil encircling the first pin of the frame and a first foot portion extending from the first coil at the first end of the torsion spring and resting on the second pin of the frame.  
     
     
         16 . A semiautomatic handgun according to  claim 15;  wherein the torsion spring has at least one second coil and a second foot portion extending from the second coil at the second end of the torsion spring and connected to the trigger bar.  
     
     
         17 . A semiautomatic handgun according to  claim 13;  wherein the semiautomatic handgun is a 9 mm semiautomatic handgun.  
     
     
         18 . A semiautomatic handgun according to  claim 13;  wherein the semiautomatic handgun has a length of about 4.7 inches, a height of about 3.6 inches, and a thickness of about 0.94 inches.  
     
     
         19 . A semiautomatic handgun according to  claim 18;  wherein the semiautomatic handgun is a 9 mm semiautomatic handgun.  
     
     
         20 . A semiautomatic handgun according to  claim 19;  wherein the semiautomatic handgun has an unloaded weight of about 12.3 ounces.  
     
     
         21 . A semiautomatic handgun according to  claim 18;  wherein the semiautomatic handgun has an unloaded weight in the range of about 12.0 to 12.5 ounces.  
     
     
         22 . A semiautomatic handgun according to  claim 13;  further comprising a barrel mounted on the frame and a grip for receiving the hand of a shooter; and wherein a line extending perpendicular to a central axis of the barrel intersects the grip at a preselected angle such that the barrel will be aligned axially with the forearm of the shooter when the grip is held in the hand with the top of the shooter's wrist level with the top of the forearm.  
     
     
         23 . A semiautomatic handgun according to  claim 22;   wherein the preselected angle is in the range of about 9 to 11 degrees.    
     
     
         24 . A semiautomatic handgun according to  claim 13;  wherein the semiautomatic handgun has a length in the range of about 4.5 to 5.5 inches, a height in the range of about 2.9 to 4.4 inches, and a thickness in the range of about 0.85 to 0.98 inches.  
     
     
         25 . A semiautomatic handgun according to  claim 13;  wherein the semiautomatic handgun has a length in the range of about 4.5 to 5.0 inches, a height in the range of about 3.2 to 4.0 inches, and a thickness in the range of about 0.90 to 0.95 inches.  
     
     
         26 . A semiautomatic handgun according to  claim 13;  wherein the deflector comprises a portion of the frame extending between the first locating recess and the second locating recess.  
     
     
         27 . A semiautomatic handgun according to  claim 26;  wherein the frame has a top disposed over the first locating recess and the second locating recess; and wherein the portion of the frame has a first surface inclined at a first preselected angle relative to the top and a second surface inclined at a second preselected angle relative to the top.  
     
     
         28 . A semiautomatic handgun according to  claim 27;  wherein the first preselected angle is greater than the second preselected angle.  
     
     
         29 . A semiautomatic handgun according to  claim 28;  wherein the first preselected angle is in the range of about 166 to 168 degrees and the second preselected angle is in the range of about 134 to 136 degrees.  
     
     
         30 . A semiautomatic handgun according to  claim 27;  wherein the trigger is pivotally mounted to the frame by a pin extending through an aperture in the first locating recess of the frame; and wherein a distance from a turning point between the first and second inclined surfaces of the portion of the frame to a center of the aperture in the first locating recess of the frame is in the range of about 1.4 to 1.6 inches.