Dentistry – Apparatus – Having intra-oral dispensing means
Patent
1984-03-12
1986-10-28
Wilson, John J.
Dentistry
Apparatus
Having intra-oral dispensing means
222575, A61C 504
Patent
active
046196137
ABSTRACT:
A bulk dental syringe for dispensing predetermined incremental amounts of dental material that includes a barrel assembly that contains a bulk supply of dental material. The barrel assembly is detachably connected to a handle or holder which may be either a finger holder or a lever actuated holder. The barrel assembly is sealed at one end with a displaceable plug or piston, which is engaged by a plunger to express the material therefrom . A discharge spout and a plurality of flexible fingers circumscribing the spout is connected to the other end of the barrel assembly, and a disposable nozzle tip is releaseably secured to the spout by the flexible fingers. A lock collar is provided to positively maintain the flexibe fingers in securement about the nozzle tip. To prevent drooling of the material, a pressure relief arrangement is provided on the end of the plunger.
REFERENCES:
patent: 742446 (1903-10-01), Kelly
patent: 2530999 (1950-11-01), Schuler
patent: 2928533 (1960-03-01), Loucony
patent: 3285256 (1966-11-01), Despard
patent: 3724077 (1973-04-01), Preston et al.
patent: 3827147 (1974-08-01), Condon
patent: 3854209 (1974-12-01), Franklin et al.
patent: 3943628 (1976-03-01), Kronman et al.
Fattibene Arthur T.
Wilson John J.
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