Dispensing – With discharge assistant – Insertable cartridge or removable container
Patent
1982-06-04
1984-04-03
Skaggs, H. Grant
Dispensing
With discharge assistant
Insertable cartridge or removable container
74142, 74404, 74202, 222333, 222386, 222336, B67D 542, B67D 546
Patent
active
044403240
ABSTRACT:
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.
REFERENCES:
patent: 679983 (1901-08-01), O'Neil
patent: 2118154 (1938-05-01), Buedingen
patent: 2313213 (1943-03-01), Atherley
patent: 3604597 (1971-09-01), Pohl et al.
patent: 4330070 (1982-05-01), Doubleday
patent: 4335834 (1982-06-01), Zepkin
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