Abstract:
A paintball marker utilizing a combustible material as the means for propulsion, a pressurized fuel injection system providing a continuously fixed amount of fuel into the combustion chamber despite diminishing amounts of fuel as use continues, and a cooling assembly to dissipate excess heat from the combustion chamber after a combustion reaction is provided.

Description:
CROSS-REFERENCE TO RELATED APPLICATIONS  
       [0001]     Not Applicable.  
       STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT  
       [0002]     Not Applicable.  
       REFERENCE TO A MICROFICHE APPENDIX  
       [0003]     Not Applicable.  
       RESERVATION OF RIGHTS  
       [0004]     A portion of the disclosure of this patent document contains material which is subject to intellectual property rights such as but not limited to copyright, trademark, and/or trade dress protection. The owner has no objection to the facsimile reproduction by anyone of the patent document or the patent disclosure as it appears in the Patent and Trademark Office patent files or records but otherwise reserves all rights whatsoever.  
       BACKGROUND OF THE INVENTION  
       [0005]     1. Field of the Invention.  
         [0006]     The present invention relates to the field of paintball products. In particular, the present invention relates specifically to use of a combustion chamber for the generation of propulsion forces to be used to launch paintballs from the body of a paintball marker. Known art may be found in U.S. Class  42 . subclass  106  as well as in other classes and subclasses  
         [0007]     2. Description of the Known Art.  
         [0008]     As will be appreciated by those skilled in the art, pressurized gas has been previously used to propel paintballs from the launching areas of paintball markers. Patents disclosing information relevant to paintballs, markers, and hoppers include U.S. Pat. No. 6,845,794, issued to Johnson on Jan. 25, 2005 entitled Paintball filling system; U.S. Pat. No. 6,763,822, issued to Styles on Jul. 20, 2004 entitled Electropneumatic paintball gun, method of making and operating, and retrofit kit assembly; U.S. Pat. No. 6,739,322, issued to Rice et al. on May 25, 2004 entitled Paintball feed system; U.S. Pat. No. 6,701,909, issued to Tiberius et al. on Mar. 9, 2004 entitled Semi-automatic-firing, compressed-gas gun; U.S. Pat. No. 6,658,982, issued to Cherry on Dec. 9, 2003 entitled Cocking knob and striker arrangement for gas-powered projectile firing device; U.S. Pat. No. 6,644,366, issued to Johnson on Nov. 11, 2000 entitled Paintball filling system; U.S. Pat. No. 6,626,165, issued to Bhogal on Dec. 30, 2003 entitled Paintball gun; U.S. Pat. No. 6,574,945, issued to Martinez, Jr. on Jun. 10, 2003 entitled Method for manufacturing a projectile containing chemiluminescent compounds; U.S. Pat. No. 6,481,432, issued to Rushton, et al. on Nov. 19, 2002 entitled Paintball hopper; U.S. Pat. No. 6,470,872, issued to Tiberius et al. on Nov. 19, 2002 entitled Semi-automatic firing compressed-gas gun; U.S. Pat. No. 6,055,975, issued to Gallegher et al. on May 2, 2000 entitled Paintball container; and U. S. Pat. No. 5,722,383 issued to Tippmann, Sr., et al. on Mar. 3, 1998 entitled Impeder for a gun firing mechanism with ammunition feeder and mode selector. Each of these patents is hereby expressly incorporated by reference in their entirety.  
         [0009]     U.S. Patent Publication 2004/0144012 to Adams discloses a paintball marker having a combustion-gas-powered engine supplying pressure pulses for propelling paintballs or other projectiles.  
         [0010]     The prior art patents fail to teach either a fuel injection pathway for use with the combustion chamber or a cooling assembly for the displacement of heat resulting from the combustion reaction. Thus, it may be seen that these prior art patents are very limited in their teaching and utilization, and an improved paintball marker is needed to overcome these limitations. What is needed then is a paintball marker utilizing the energy produced from a combustion reaction while dissipating the excess heat from the reaction in an effective manner. Additionally, the art lacks a paintball marker which provides a continuously fixed amount of fuel for propulsion of a paintball despite a diminished pressure or supply of fuel.  
       SUMMARY OF THE INVENTION  
       [0011]     The present invention is directed to an improved paintball marker apparatus. In accordance with one exemplary embodiment of the present invention, a paintball marker is provided using fuel injection system to transmit a combustible material to a combustion chamber for a combustion reaction capable of propelling a paintball from the marker. Of particular note is the actual creation of a paintball marker using a combustion engine including a fuel connection system, a fuel handling system, a fuel injection system, a cooling assembly used to dissipate heat from the combustion reaction, and a paintball loading and handling system.  
         [0012]     Advantages of the present invention include: the connection of a combustible fuel tank to a paintball marker, the loading of a combustible fuel into the paintball maker, the use of a combustible material in a paintball marker as the means for propulsion of the paintball, the use of a pressurized fuel injection system providing a continuously fixed amount of fuel into the combustion chamber despite diminishing amounts of fuel as use continues, the use of a cooling assembly to dissipate excess heat from the combustion chamber after a combustion reaction, the integration f the user into the control of the marker, and the loading and handling system for controlling the movement of the paintball through the marker.  
         [0013]     It is an object of the present invention to provide a paintball marker utilizing combustion energy to propel a paintball from the barrel of the marker.  
         [0014]     Further, it is an object of the present invention to provide a paintball marker with a cooling assembly to dissipate heat created from a combustion reaction.  
         [0015]     Further, it is an object of the present invention to provide a paintball marker with a fuel injection assembly providing a continuously fixed amount of fuel to the combustion chamber despite diminished fuel reserves within the fuel container.  
         [0016]     Further, it is an object of the present invention to provide an electronic paintball marker with a circuit set regulating the fuel injection and fuel ignition in the combustion assembly.  
         [0017]     Further, it is an object of the present invention to provide a combustion-powered paintball marker with a forward-positioned paintball feed port for the insertion of paintballs in front of the combustion chamber assembly.  
         [0018]     These and other objects and advantages of the present invention, along with features of novelty appurtenant thereto, will appear or become apparent by reviewing the following detailed description of the invention.  
     
    
     BRIEF DESCRIPTION OF THE SEVERAL VIEWS OF THE DRAWINGS  
       [0019]     In the following drawings, which form a part of the specification and which are to be construed in conjunction therewith, and in which like reference numerals have been employed throughout wherever possible to indicate like parts in the various views:  
         [0020]      FIG. 1  is a left side view of an embodiment of the combustible paintball marker;  
         [0021]      FIG. 2  is a back view of the combustible paintball marker;  
         [0022]      FIG. 3  is a right side view of the combustible paintball marker;  
         [0023]      FIG. 4  is a front view of the combustible paintball marker showing line A-A;  
         [0024]      FIG. 5  is a top view of the combustible paintball marker;  
         [0025]      FIG. 6  is a bottom view of the combustible paintball marker;  
         [0026]      FIG. 7  is an exploded view of the combustible paintball marker;  
         [0027]      FIG. 8  is a cutaway view of the combustible paintball marker along line A-A;  
         [0028]      FIG. 9  is a cutaway view of the fuel injection assembly along line A-A.  
         [0029]      FIG. 10  is a cutaway view of the combustion chamber assembly along line A-A.  
         [0030]      FIG. 11  is a cutaway view of the combustion chamber assembly releasing combustion pressure along line A-A.  
         [0031]      FIG. 12  is a cutaway view of an alternative combustion chamber assembly along line A-A.  
         [0032]      FIG. 13  shows the method of the present invention.  
     
    
     DETAILED DESCRIPTION OF THE INVENTION  
       [0033]     As shown in  FIGS. 1 through 12  of the drawings, one exemplary embodiment of the present invention is generally shown as a combustion paintball marker  100  used for launching a paintball  110 (see  FIGS. 9-12 ). As noted in  FIG. 1 , the combustion paintball marker  100  has a marker body  101  including a barrel  29 , a downward extending grip frame assembly  32  housing a trigger  36 , an internal launching area  114  (see  FIG. 9 ), an ignition assembly  200  (see  FIG. 12 ), a combustion chamber assembly  300 , a fuel injection assembly  400 , a cooling assembly  500 , a feed port  5 , and a fuel cell retainer  7 . Several unique advantages are provided by the combustion paintball marker  100  of the present invention and the method and apparatus that are utilized to launch a paintball  110 .  
         [0034]     As best understood from  FIGS. 8 through 12 , paintballs  110  are loaded  601  into the launching area  114  using a gravity feed or a force feed from a detachable hopper (not shown) through a short length feed port  5  as is well known in the art. Once loaded, the paintball  110  is unconventionally motivated from the launching area  114  by the exhaust of combustion gases from the combustion chamber assembly  300 . An understanding of the fuel supply, electrical circuitry, operational characteristics, and control system provides an understanding the launching of the paintball  110 .  
         [0035]     The combustion paintball marker  100  uses a fuel cell assembly  1  to supply the marker  100  with the combustible material  301  from a fuel cell cartridge  103 . The fuel cell cartridge  103  is filled with a quantity of combustible material  301 , preferably a vapored fuel such as mapp gas, propylene, or propane. The fuel cell cartridge  103  is preferably a pressurized cylinder with fuel cell port  102  housed within a pressurized body having a fuel cell side  106 , fuel cell top  105 , and fuel cell bottom  104 . The body and its components are generally composed of a durable material with non-corrosive characteristics that can withstand the pressure of the fuel it contains. During attachment to the combustible marker  100 , the fuel cell cartridge  103  is placed within the fuel cell retainer  7 . The fuel cell retainer  7  acts as additional protection for the fuel cell cartridge  103  during the physically-demanding sport of paintball. The fuel cell retainer  7  additionally can feature graphic designs or other stylized aspects to match the marker body  101 .  
         [0036]     The fuel cell retainer  7  includes threads for attaching the fuel cell retainer  7  to the fuel adapter assembly  33 . The fuel adapter assembly  33  surface is defined by fuel adapter assembly front  401 , fuel adapter assembly left side  402 , fuel adapter assembly right side  403 , fuel adapter assembly back  404 , fuel adapter assembly top  405 , and fuel adapter assembly bottom  406 .  
         [0037]     As shown in  FIGS. 1 through 9 , the fuel cell retainer  7  is preferably attached at the fuel adapter assembly bottom  406 . The drawings also show how the fuel cell retainer  7  attaches to the fuel adapter assembly  33  perpendicular to the barrel assembly  29  of the paintball marker  100 . A perpendicular attachment was chosen to provide a forward grip for the marker, although it is envisioned that forward, backward, or sideways angles may also be utilized to provide differing grip arrangements.  
         [0038]     Reviewing FIGS.  7  though  12 , one may see that when the fuel cell retainer  7  attaches to the fuel adapter assembly  33 , the fuel cell adapter  2  is connected down onto the fuel cell cartridge  103 . The fuel cell adapter  2  fits around the fuel cell port  102  forming a pressure-tight seal. This seal allows for the fuel cell depressor pin  17  to press upon the fuel cell port  102  to release the combustible material  301  stored within the fuel cell cartridge  103 . The combustible material  301  can then be transported through the fuel injection assembly  400 , contained within the fuel adapter assembly  33 , into the combustion chamber assembly  300  for ignition by the ignition assembly  200 .  
         [0039]     As shown in  FIGS. 8 and 9 , once the combustible material  301  is released from the fuel cell cartridge  103 , the combustible material  301  enters the fuel injection assembly  400  located within the fuel adapter assembly  33 . The fuel injection assembly  400  is preferably constructed from a non-fuel reactive material that may withstand the environmental conditions that the marker will be subjected to during the normal lifetime of the marker.  
         [0040]     Immediately after exiting the fuel cell cartridge  103 , the combustible material passes through the fuel cell adapter  2  and around or through the fuel cell depressor pin  17  to a filter  14 . The filter  14  is preferably a  40  to  45  micron mesh screen. After passing through the filter  14 , the combustible material  301  enters the Schrader valve housing  23 . As shown in  FIGS. 8 and 9 , the Schrader valve housing runs parallel to the barrel assembly  29  of the paintball marker  100 . The Schrader valve  13  allows the combustible material  301  to move from the area of high pressure to the area of lower pressure on the other side of the valve  13  into fuel injection channel  407 . A regulator assembly  31  is attached to the fuel adapter assembly front  401  by a regulator screw  27 . The regulator assembly  31  maintains  646  the pressure gradient between the Schrader valve housing  23  and the fuel injection channel  407 . This pressure gradient is necessary to maintain an even flow of the combustible material  301  from the fuel cell cartridge  103  even when the amount of combustible material  301  diminishes. After moving through the Schrader valve  13  into the fuel injection channel  407 , the combustible material moves perpendicular to the barrel assembly  29  to a fuel conduit  408  running parallel to the barrel assembly  29  where it runs past a fuel injection pin spring  12 , o-ring fuel valves  9 ,  19  and a fuel injection pin  8 .  
         [0041]     A solenoid  15 , activated by an electric charge  227  emitted from a battery  25  when trigger  36  is pulled, motivates the fuel injection assembly  400  to allow the combustible material  301  to move into a fuel conduit  409  running perpendicular to the barrel assembly  29 , past o-ring fuel valve  20 , up to a fuel conduit  410  running parallel to the barrel assembly  29  to fuel inlet  411  releasing the combustible material  301  from the fuel injection assembly  400  into the combustion chamber assembly  300 .  
         [0042]     The paintball marker body  101  contains a combustion chamber assembly  300  located posterior to the feed port  5  parallel to the barrel assembly  29 . The combustion chamber assembly includes an extending bolt  302 , a combustion chamber  303 , and a core assembly  30 . The combustion chamber  303  is defined by front chamber wall  310 , back chamber wall  311 , and a cylindrical chamber wall  312  extending from the front chamber wall  310  to the back chamber wall  311 . In another embodiment of the invention, the combustion chamber  303  is defined by the front chamber wall  304 , the back chamber wall  305 , the bottom chamber wall  306 , the top chamber wall  307 , the left chamber wall  308 , and the right chamber wall  309 . The front chamber wall  310  and back chamber wall  311  extend to the exterior marker surface  107  to form forward block  314  and rear block  315 . The forward block  314  and rear block  315  are substantially square in shape framing the combustion chamber exterior  313  on the marker surface  107 . The forward block  314  is defined by forward block left  316 , forward block right  317 , forward block front  318 , forward block back  319 , forward block top  320 , and forward block bottom  321 . The forward block  314  further contains a variety of conduits and channels necessary for the operation of the invention which will be discussed further below. The forward block  314  is further constructed of substantially thick material for the containment of the combustion chamber  303 . The back block  315  is defined by rear block left  322 , rear block right  323 , rear block top  324 , rear block bottom  325 , rear block front  326 , and rear block back  327 . The rear block  315  further contains a variety of conduits and channels necessary for the operation of the invention which will be discussed further below. The rear block  313  is further constructed of substantially thick material for the containment of the combustion chamber  303 . The forward block  314  and the rear block  315  provide flat surfaces for attachment of sections of the marker body  101  to the combustion chamber  303 . The fuel adapter assembly top  405  is attached to the forward block top  320  and rear block top  324 . The core assembly  30  is attached to and integrated with the rear block back  327 . The barrel assembly  29  posterior to the feed port  5  is attached to forward block front  318 .  
         [0043]     The core assembly  30  is defined by a cylindrical exterior  328  and a compound bolt  329 . The core assembly base  330  is attached to and integrated with the grip frame assembly  32 . As shown in  FIGS. 8 and 9 , the compound bolt  329  constitutes the interior of the core assembly  30  and enters the rear block  315  through the rear block bolt channel  331 . The compound bolt  329  is defined by the exterior bolt  337 , the interior bolt  338 , the cocking bolt  339 , the exterior bolt spring  340 , and the interior bolt spring  341 . As shown in  FIG. 8 , the exterior bolt  337  forms a sleeve around the exterior bolt spring  340  and the forward end  342  of the cocking bolt  339 . The cocking bolt rear end  343  extends outside of the core assembly  30  to allow for a user to cock the paintball marker  101 . The cocking bolt  339  forms a sleeve around the interior bolt  338  with the forward end  344  capable of moving through a channel  345  located in the forward end  342  of the cocking bolt  339  and capable of moving through a channel  346  located in the forward end  347  of the exterior bolt  337 . The forward end  347  of the exterior bolt  337 , when the marker  101  is cocked, rests within the rear block  315  against the combustion chamber wall component  348  located adjacent to the back chamber wall  311 . The combustion chamber wall component  348  is attached to an extending bolt  302  which runs parallel to the barrel assembly  29 . As shown in  FIG. 8 , when the marker  101  is cocked, the extending bolt  302  runs along the length of the combustion chamber  303  and the sear member  333  latches the compound bolt  329  on the exterior bolt groove  332 . Additionally, when the marker  101  is cocked, the exterior bolt spring  340  is extended and the interior bolt  338  extends through the cocking bolt  339 , the exterior bolt  337 , and the rear block  315  into the combustion chamber  303 . When the trigger  36  is pulled, the trigger solenoid  334  is activated to motivate the lower arm  335  of the sear member  333  forward, thereby motivating the engaging arm  336  of the sear member  333  to release the exterior bolt groove  332 . The exterior bolt  337 , attached to the exterior bolt spring  340 , is then motivated forward through the rear block bolt channel  331  utilizing the saved potential energy of the exterior bolt spring  340 . The chamber wall component  348  and the interior bolt  338  are also motivated forward, constricting the interior bolt spring  341 . The movement of the chamber wall component  348  motivates the extending bolt  302  forward to obscure the feed port  5  from allowing more paintballs from moving into the barrel assembly  29 . This movement  648  of the extending bolt  302  insures only one paintball  110  is fired when the trigger  36  is pulled. The movement of the chamber wall component  348  further creates a combustion chamber  303  for the allowing for the ignition of the combustible material  301 .  
         [0044]     The forward block  314 , as mentioned above, contains a number of channels and conduits necessary for the operation of the invention. The forward block  314  contains a main channel  349  allowing for the movement of the extending bolt  302  and for the release of combustion gases  399  for the propulsion of the paintball  110 . The forward block  314  additionally contains an exhaust conduit  350 , the fuel conduit  409  running perpendicular to the barrel assembly  29 , the fuel conduit  410  running parallel to the barrel assembly  29 , and the fuel inlet  411  for the release of the combustible material  301  into the combustion chamber  303 . The rear block  315 , as mentioned above, contains a number of channels and conduits necessary for the operation of the invention. The rear block  315  contains a solenoid channel  351  running from the ignition coil  6  located in the fuel adapter assembly  33 .  
         [0045]     As discussed above, after a user pulls the trigger  36  and the chamber wall component  348  has been motivated forward, an electric signal is transmitted from the battery  25  to the solenoid  15  to release  620  the combustible material  301  into the combustion chamber  303 . Further, air is allowed  610  into the combustion chamber  303  through a conduit  350  for mixing  630  with the combustible material. A second electric signal is then transmitted from the battery  25  to the ignition coil  6  and spark plug housing  34  to initiate the ignition  640  of the combustible material  301 . Further details regarding the battery  25  and the electric circuitry  210  are discussed below. The combustion reaction contained within the combustion chamber  303  creates a contained pressure forcing the chamber wall component  348  to move forward even further. This movement of the chamber wall component  348  forces the interior bolt  338  forward until the interior bolt spring  341  reaches a maximum constriction position. The forward movement of the interior bolt  338  is thus limited by the constriction of the interior bolt spring  341 . The chamber wall component  348  is able to move forward further than the interior bolt  338 , thus providing a channel  352  within the chamber wall component  348 . This channel  352  releases a portion of combustion gases to propel the paintball  110  from the launching area  114 . The release of pressure within the combustion chamber  300  thus allows the interior bolt spring  341  to relax to an unconstricted position which allows the interior bolt  338  to move backwards within the compound bolt  329 . Excess combustion gases not expelled through the channel  352  are released  647  through the exhaust conduit  350 . The pressure from the reaction additionally motivates the combustion chamber assembly  300  to return to a cocked position for further use.  
         [0046]     As can be appreciated by those skilled in the art, combustion reactions release a tremendous amount of energy, much of which is in the form of heat. In the current invention, the presence of a large quantity of heat is detrimental to the proper workings of the paintball marker  101 . In particular, the gelatin of the paintball  110  cannot withstand high temperatures. The present invention compensates for this heat by providing a cooling assembly  500 . The cooling assembly  500  encases the combustion chamber exterior  313  and extends between the forward block  314  and rear block  315 . The cooling assembly  500  radiates  645  excess heat from the combustion chamber exterior  313  to help maintain a cooler temperature for the paintball marker apparatus  100 . The cooling assembly  500  is defined by a plurality of fins  501  extending from the cylindrical base  502  around the combustion chamber exterior  313 . The cooling assembly  500  is preferably constructed of a durable material conducive to radiating and wicking away the heat from the combustion chamber assembly  300 , such as aluminum, diamond, carbon or any other substance. The plurality of fins  501  are defined by a plurality of surfaces, namely a front edge  503 , a back edge  504 , a top edge  505 , a bottom edge  506 , a left edge  507 , and a right edge  508 . The bottom edge  506  is attached to the cylindrical base  502  of the cooling assembly  500 . In a preferred embodiment, the front edge  503  and back edge  504  are rounded to prevent injury to paintball users or snagging of clothing or other items by the plurality of fins  501 . The plurality of fins  501  are positioned upon the cylindrical base  502  radiating from a central point in an appropriate ratio to maximize the efficiency of the cooling assembly  500  without increasing production costs for the marker  101 .  
         [0047]     As mentioned above, a battery  25  and an electric circuit  210  are necessary for the current invention. The battery  25  is housed at the posterior end  201  of the grip frame assembly  32  in a battery housing  24 . The battery housing  24  is defined by a front  211 , a back  212 , a left side  213 , a right side  214 , a top  215 , and a bottom  216 . The housing bottom  216  consists of the battery housing door  22  which is affixed to the battery housing by battery door screw  21 . The battery housing  24  is attached to the grip frame assembly  32  by housing screws  26 ,  226 . An electric circuit board  210  is housed within the grip frame assembly  32 . The electric circuit board  210  transmits electric charge  227  to the solenoid  15  to release the combustible material  301  into the combustion chamber  303  and transmits electric charge  228  shortly after to the ignition coil  6  for the ignition of the combustible material  301 .  
         [0048]      FIG. 13  of the drawings shows a flow chart of a Combustion launching method  600  of the present invention. The method includes the elements of inserting paintball  601  to the firing chamber, and continues with a parallel process of providing air  610 , providing combustible material  620 , regulating the fuel and pressurizing the fuel injection system  646  and then mixing the air and combustible material  630 . The method then uses the element of igniting the mixed air and combustible material  640  which continues by radiating the excess heat from the combustion  645 , motivating bolt  648 , launching paintball  649  and purging the ignition by-products  647 .  
         [0049]     Reference numerals used throughout the detailed description and the drawings correspond to the following elements:  
         [0050]     Fuel cell assembly  1   
         [0051]     Fuel cell adapter  2   
         [0052]     Feed port  5   
         [0053]     Ignition coil  6   
         [0054]     Fuel cell retainer  7   
         [0055]     Fuel injection pin  8   
         [0056]     O-ring fuel valve  9   
         [0057]     Fuel injection pin spring  12   
         [0058]     Schrader valve  13   
         [0059]     Fuel filter  14   
         [0060]     Solenoid  15   
         [0061]     Fuel cell depressor pin  17   
         [0062]     O-ring fuel valve  19   
         [0063]     O-ring fuel valve  20   
         [0064]     Battery door screw  21   
         [0065]     Battery door  22   
         [0066]     Schrader valve housing  23   
         [0067]     Battery housing  24   
         [0068]     Battery  25   
         [0069]     Battery housing screw  26   
         [0070]     Regulator screw  27   
         [0071]     Barrel assembly  29   
         [0072]     Core assembly  30   
         [0073]     Regulator assembly  31   
         [0074]     Grip frame assembly  32   
         [0075]     Fuel adapter assembly  33   
         [0076]     Spark plug housing  34   
         [0077]     Trigger  36   
         [0078]     Paintball marker  100   
         [0079]     Marker body  101   
         [0080]     Fuel cell port  102   
         [0081]     Fuel cell cartridge  103   
         [0082]     Fuel cell bottom  104   
         [0083]     Fuel cell top  105   
         [0084]     Fuel cell side  106   
         [0085]     Marker surface  107   
         [0086]     Paintball  110   
         [0087]     Launching area  114   
         [0088]     Ignition assembly  200   
         [0089]     Grip frame posterior  201   
         [0090]     Circuit  210   
         [0091]     Housing front  211   
         [0092]     Housing back  212   
         [0093]     Housing left side  213   
         [0094]     Housing right side  214   
         [0095]     Housing top  215   
         [0096]     Housing bottom  216   
         [0097]     Housing screw  226   
         [0098]     Electric charge  227   
         [0099]     Electric charge  228   
         [0100]     Combustion chamber assembly  300   
         [0101]     Combustible material  301   
         [0102]     Extending bolt  302   
         [0103]     Combustion chamber  303   
         [0104]     Front chamber wall  304   
         [0105]     Back chamber wall  305   
         [0106]     Bottom chamber wall  306   
         [0107]     Top chamber wall  307   
         [0108]     Left chamber wall  308   
         [0109]     Right chamber wall  309   
         [0110]     Alternative front chamber wall  310   
         [0111]     Alternative back chamber wall  311   
         [0112]     Cylindrical chamber wall  312   
         [0113]     Chamber exterior  313   
         [0114]     Forward block  314   
         [0115]     Rear block  315   
         [0116]     Forward block left  316   
         [0117]     Forward block right  317   
         [0118]     Forward block front  318   
         [0119]     Forward block back  319   
         [0120]     Forward block top  320   
         [0121]     Forward block bottom  321   
         [0122]     Rear block left  322   
         [0123]     Rear block right  323   
         [0124]     Rear block top  324   
         [0125]     Rear block bottom  325   
         [0126]     Rear block front  326   
         [0127]     Rear block back  327   
         [0128]     Core exterior  328   
         [0129]     Compound bolt  329   
         [0130]     Core assembly base  330   
         [0131]     Rear block bolt channel  331   
         [0132]     Exterior bolt groove  332   
         [0133]     Sear member  333   
         [0134]     Trigger solenoid  334   
         [0135]     Sear member lower arm  335   
         [0136]     Sear member engaging arm  336   
         [0137]     Exterior bolt  337   
         [0138]     Interior bolt  338   
         [0139]     Cocking bolt  339   
         [0140]     Exterior bolt spring  340   
         [0141]     Interior bolt spring  341   
         [0142]     Cocking bolt forward end  342   
         [0143]     Cocking bolt rear end  343   
         [0144]     Interior bolt forward end  344   
         [0145]     Cocking bolt channel  345   
         [0146]     Exterior bolt channel  346   
         [0147]     Exterior bolt forward end  347   
         [0148]     Chamber wall component  348   
         [0149]     Main channel  349   
         [0150]     Exhaust conduit  350   
         [0151]     Solenoid channel  351   
         [0152]     Chamber wall channel  352   
         [0153]     Combustion gases  399   
         [0154]     Fuel injection assembly  400   
         [0155]     Fuel adapter assembly front  401   
         [0156]     Fuel adapter assembly left side  402   
         [0157]     Fuel adapter assembly right side  403   
         [0158]     Fuel adapter assembly back  404   
         [0159]     Fuel adapter assembly top  405   
         [0160]     Fuel adapter assembly bottom  406   
         [0161]     Fuel injection channel  407   
         [0162]     Fuel conduit  408   
         [0163]     Fuel conduit  409   
         [0164]     Fuel conduit  410   
         [0165]     Fuel inlet  411   
         [0166]     Cooling assembly  500   
         [0167]     Plurality of fins  501   
         [0168]     Cylindrical base  502   
         [0169]     Fin front edge  503   
         [0170]     Fin back edge  504   
         [0171]     Fin top edge  505   
         [0172]     Fin bottom edge  506   
         [0173]     Fin left edge  507   
         [0174]     Fin right edge  508   
         [0175]     Combustion launching method  600   
         [0176]     Inserting paintball  601   
         [0177]     Providing air  610   
         [0178]     Injecting combustible material  620   
         [0179]     Mixing air and combustible material  630   
         [0180]     Igniting mixed air and combustible material  640   
         [0181]     Radiating excess heat  645   
         [0182]     Pressurizing fuel injection system  646   
         [0183]     Purging ignition by-products  647   
         [0184]     Motivating bolt  648   
         [0185]     Launching paintball  649   
         [0186]     From the foregoing, it will be seen that this invention well adapted to obtain all the ends and objects herein set forth, together with other advantages which are inherent to the structure. It will also be understood that certain features and subcombinations are of utility and may be employed without reference to other features and subcombinations. This is contemplated by and is within the scope of the claims. Many possible embodiments may be made of the invention without departing from the scope thereof. Therefore, it is to be understood that all matter herein set forth or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.