Fluid dispenser

Details Fluid dispenser Fluid dispenser

1986-04-23

1987-08-11

Rolla, Joseph J.

Dispensing

With discharge assistant

Container with follower

222399, 604143, B67D 542

Patent

active

046855963

ABSTRACT:
A portable device is provided for dispensing fluid in a controlled manner, and, optionally, for mixing two or more fluid components prior to dispensing the resulting mixture. The device comprises a modified syringe provided with needle valve and associated cannula through which fluid is drawn into the syringe chamber and expelled therefrom in a controlled manner by appropriate movement of the piston. In a particular embodiment propellant gas is released behind the piston which, in sealing slidable engagement with the syringe cylinder, thereby exerts expelling pressure on the fluid in the cylinder chamber. The rate of expulsion of fluid from the chamber is regulated by adjustment of the needle valve. The device is especially adapted for mixing two or more liquid components of a periodontal composition and for controlled dispensing of the resulting composition at the locus to be treated.

REFERENCES:
patent: 2818999 (1958-01-01), Miller
patent: 4441629 (1984-04-01), Mackal

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