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Dispensing gun having pressure relieving device

  • US 6,691,899 B2
  • Filed: 07/03/2002
  • Issued: 02/17/2004
  • Est. Priority Date: 07/03/2002
  • Status: Active Grant
First Claim
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1. A dispensing gun for dispensing a viscous material received in a cartridge, the cartridge including a piston slidably received therein for moving the viscous material out of the cartridge, said dispensing gun comprising:

  • a stock including a handle extended therefrom, and including at least one guide orifice formed therein, and including a frame for holding the cartridge therein, a rod slidably engaged through said at least one guide orifice of said stock, and including a first end having a plunger provided thereon for engaging with the piston of the cartridge, means for moving said rod forwardly and rearwardly relative to said stock to force the viscous material out of the cartridge, said moving means including an actuating plate having an aperture formed therein for receiving said rod, a trigger pivotally secured to said stock and having an actuating pin for engaging with said actuating plate, and means for biasing said actuating plate to engage with said actuating pin of said trigger, means for limiting a rearward movement of said rod relative to said stock, and means for retrieving said rod forwardly to force said plunger to engage with the piston of the cartridge.

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