Dental viscous material dispenser

Details Dental viscous material dispenser Dental viscous material dispenser

1987-09-25

1989-03-21

Wilson, John J.

Dentistry

Apparatus

Having intra-oral dispensing means

222386, A61C 504

Patent

active

048138711

ABSTRACT:
A viscous material dispenser (10) for the controlled application of a viscous dental material from a capsule (40) through an applicator tip (50) with nozzle (55). Capsule (40) is inserted within syringe barrel (30) and retained in place by capsule locking means (20). Syringe barrel (30) includes a slot (32) through which retaining spring (24) passes for contact with an end of capsule (40). Retention spring (24) follows the helical contour of slot (32), through which it passes, as capsule locking means (20) is rotated. Clockwise rotation forces capsule (40) toward applicator tip (50) and thus securing capsule (40) in place. Capsule (40) includes plunger (42) which is lockingly coupled to applicator (44) by barb (48). This arrangement permits plunger (42) to alternately apply pressure and suction to the viscous material such that a controlled volume can be aspirated through nozzle (55).

REFERENCES:
patent: 2648906 (1953-08-01), Holmes
patent: 2837824 (1958-06-01), Moller
patent: 3521356 (1970-07-01), Newman
patent: 3581399 (1971-06-01), Dragan
patent: 4295828 (1981-10-01), Rudler

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