Paintball marker internal reset system

A paint ball projectile marker comprising:

• a bolt chamber and barrel through which a projectile is received and expelled;
• a bolt in said bolt chamber sealably reciprocable between a first reset position to accept said projectile into said bolt chamber, to a second firing position wherein said projectile is expelled forwardly from said barrel by pressurized gas;
• a hammer chamber connected to and parallel to said bolt chamber;
• a back block exteriorly and rearwardly connecting said bolt and a hammer assembly;
• said hammer assembly comprising:
• a hammer body internally reciprocable in said hammer chamber from said reset position to said firing position, said hammer body including a lug;
• a reset rod, a forward end of said reset rod having an enlarged head that is axially retained in said hammer body, a rearward end of said reset rod being affixed to said back block;
• a hammer spring normally biasing said hammer body towards said firing position;
• means to supply projectiles into said bolt chamber in said reset position;
• a handle and trigger assembly, said trigger including a pivotal sear releasably connectable to said lug to retain said hammer body in said reset position against said spring bias;
• means to supply pressurized gas ultimately to said bolt chamber via a control valve positioned forwardly of said hammer body, said control valve comprising a valve pin normally spring biased to close said valve, said valve pin extending rearwardly into said hammer chamber in said reset position, whereby said hammer body can strike said valve pin to open said valve and supply said pressurized gas to said bolt chamber to expel said paint ball projectile;
• and
• means connectable with said pressurized gas, after said projectile is expelled, to force a connected assembly of said bolt, said back block, said reset rod and said hammer body to said reset position.

An internal reset system for paint ball projectile markers of the type having a first chamber for a bolt and a parallel second chamber for a hammer assembly, and means to connect said bolt and said hammer assembly for substantially simultaneous movement in their respective chambers from a rearward reset position to a forward firing position of said marker, the improvement in said hammer assembly comprising:

• a hammer body, said hammer body including sear lug means to releasably retain said hammer body in said reset position,
• a reset rod, a forward head of said reset rod being axially and reciprocably retained in said hammer body, a rearward end of said reset rod being affixed to said means connecting said bolt and hammer assembly;
• and
• a hammer spring normally biasing said hammer assembly towards said firing position.