Patent Publication Number: US-6658780-B2

Title: Revolver device

Description:
PRIOR APPLICATION 
     This application claims priority from U.S. Provisional Patent Application No. 60/317,683; filed Sep. 6, 2001. 
    
    
     TECHNICAL FIELD 
     The present invention relates to a highly efficient revolver device. 
     BACKGROUND AND SUMMARY OF THE INVENTION 
     The current design of revolvers has not changed much in the last century. Conventional revolvers have a slight gap defined between the rotatable cylinder and the back end of the revolver barrel that results in pressure losses so that the speed of the bullet is reduced. During the blast, conventional revolvers are quite noisy due to the leakage between the cylinder and the barrel so that particles may blasts out through the gap. It is often necessary to use more powder to compensate for the pressure losses. There is a need for a more efficient design that improves the performance of the revolver. 
     The shooting device of the present invention solves the above-outlined problems. More particularly, the shooting device, such as a revolver, has a housing with a barrel-receiving opening defined therein. A cylinder and a barrel are attached to the housing. The barrel has a rear section with a cylindrical segment that slidably engages the cylindrical segment. A spring has one end attached to the rear section of the barrel and a second opposite end attached to the cylindrical valve for urging the valve against a groove section of the cylinder so there is a tight fit between the valve and the cylinder during the firing of the bullet. This prevents any pressure loss when the bullet is fired. 
    
    
     BRIEF DESCRIPTION OF THE DRAWINGS 
     FIG. 1 is a perspective view of the revolver device of the present invention; 
     FIG. 2 is an exploded view of the revolver device of the present invention; 
     FIG. 3 is a detailed perspective view of rear portion of the revolver pipe of the present invention; and 
     FIG. 4 is a detailed view of the cylinder of the present invention. 
    
    
     DETAILED DESCRIPTION 
     With reference to FIGS. 1-4, the high efficiency shooting device  10  of the present invention has a housing  12  with a handle  13 . The shooting device of the present invention may be any type of shooting device, such as a revolver, that has a rotatable cylinder for holding the bullets. A cylinder  14  is rotatably attached to the housing  12 . A barrel  16  is attached to the housing  12 . A special feature of the revolver device  10  is that there is a tight fit between the cylinder containing bullets and the barrel. A barrel  15 , attached to the housing  12 , has a front section  18  and a rear section  20 . The roar section  20  has a threaded portion  22  that may be screwed into a threaded portion of an opening  24  of the housing  12 . The section  20  also has a smooth cylindrical segment  26  with a round end surface  28 . The segment  25  has openings  30 , one of each side of the segment  26 , defined therein that is in fluid communication with the hollow inside of the segment  26 . An important feature is that a first end  31  of a helical spring  32  may be attached to a groove  37  in the threaded portion  22  or the segment  26 . A cylindrical valve  34  has an opening  36  extending there through and a second end  33  of the helical spring  32  may be attached to the valve  34  because the valve has a groove  35  that may snugly receive the end  33 . 
     Preferably, the valve  34  has an inner diameter that snugly fits an outer diameter of the segment  26  so that the valve  34  may slide along the segment  26 . The outside diameter of the valve  34  is such that the valve  34  may snugly slide inside the opening  24 . The dimensions of the valve are precisely engineered so that the valve  34  may slide in the opening  24  and on the segment  26  without allowing any or very little pressure to escape therebetween. One function of the spring  32  is to urge an inside surface  38  of the valve  34  against grooved or recessed sections  40  of the cylinder at bullet openings  39  defined in the cylinder  14 . The sections  40  are dimensioned to hold bullets  41 , including cartridges  43 , therein that are exploded when a trigger  45  is pulled so that a bullet is propelled through the barrel  16 . A detailed view of the sections  40  in shown in FIG.  4 . The sections  40  are dimensioned to receive the surface  38  to provide a tight fit between the section  40  and the surface  38  when the section  40  is lined up in front of the surface  38  so that the spring  32  may urge the surface  38  into the groove section  40 . However, the force is such that it is possible to rotate the cylinder  16  although the valve  34  bears against the recessed section  40 . In other words, it is possible to compress the section  32  slightly so that the valve  34  may snapped out of the section  40  and into the next section  40  as the cylinder  16  is rotated. 
     With reference to FIG. 3, a chamber  42  is defined between the inside of the barrel  16  and the reduced diameter segment  26 . The spring  32  is disposed in this chamber  42  and the chamber  42  may be pressurized through incoming air through the opening  30  due to the exploding powder. The sudden pressure increase in the chamber  42  further urges the valve  34  to slide on the segment  25  against the section  40  to minimize any pressure losses during the fire of the revolver device  10  that a bullet  41  may be ejected from the cylinder  14  through the valve  34  into the segment  26  of the barrel  16  without any pressure looses. An arrow  44  shows the explosion force on the valve  34  to move backwardly towards the section  40  of the cylinder  14 . This force is substantially greater than the spring force generated by the spring  32 . There is also a pressure behind the bullet as the fired bullet passes the opening  30  so that the valve  34  is continuously being pressed against the recess  40  when the bullet travels inside the barrel  16 . The pressure on the valve  34  is eased when the bullet leaves the barrel  16  and the valve is again exposed to atmospheric pressure. Because the valve  34  is tightly pressed against the recessed section  40  of the cylinder  16  during the firing of the bullet, there is virtually no loss of pressure and no particles eject between the barrel and the cylinder. There is also less noise and the speed of the bullet may be maintained without speed loss due to the pressure loss. 
     While the present invention has been described in accordance with preferred compositions and embodiments, it is to be understood that certain substitutions and alterations may be made thereto without departing from the spirit and scope of the following claims.