초록 ▼

A dispensing gun of the type holding a cartridge to push a substance out of it and characterized by using a longitudinally arc-shaped cartridge for a more compact operation and construction, by conveniently using a wheel drive to provide improved leverage or multiplication of the force deployed by t

A dispensing gun of the type holding a cartridge to push a substance out of it and characterized by using a longitudinally arc-shaped cartridge for a more compact operation and construction, by conveniently using a wheel drive to provide improved leverage or multiplication of the force deployed by the user, and by providing more steady piston pressure and dispensing an effortless retraction of the piston under spring action. This dispensing gun includes a longitudinally arc-shaped cartridge chamber, a piston with a similarly arc-shaped piston rod, a pawl and ratchet assembly to provide stepwise advance of the piston, a hand-controlled actuation assembly connected to the ratchet wheel and piston to push the piston against the movable bottom of the cartridge, and a spring to retract the piston upon release of the pawl and ratchet assembly.

대표청구항 ▼

A cartridge-type dispenser gun comprising a body defining a longitudinally arc-shaped cartridge chamber, a hand-controlled actuation assembly operatively connected to said body, a piston connected to the actuation assembly and displaceable longitudinally in the cartridge chamber, a pawl and ratchet

A cartridge-type dispenser gun comprising a body defining a longitudinally arc-shaped cartridge chamber, a hand-controlled actuation assembly operatively connected to said body, a piston connected to the actuation assembly and displaceable longitudinally in the cartridge chamber, a pawl and ratchet assembly connected to the hand-controlled actuation assembly and stepingly holding the piston in advanced position in the cartridge chamber, and spring means connected to the piston and operatively retracting the same in the cartridge chamber upon release of the pawl and ratchet assembly.