Oral hygiene appliances

Details Oral hygiene appliances Oral hygiene appliances

1982-08-23

1989-04-25

Mancene, Gene

Dentistry

Apparatus

Having intra-oral dispensing means

128 62A, A61G 1702

Patent

active

048243680

ABSTRACT:
An oral hygiene device includes a supply of liquid, a pump for propelling the to a point of use. A housing defines a cavity within which the pump is seated and which also includes an inlet and an outlet. The pump is of a kind having a hollow body with a chamber defined in a first portion, a piston disposed for reciprocation in that chamber and a motor to drive the piston and thereby the pump. A second portion of the body is coupled to an outlet. A third portion of the body is coupled to an inlet. A first check valve is at least effectively disposed in a third portion of the body and poled to pass liquid only from the inlet to the chamber. A second check valve is at least effectively disposed in the second portion of the body and is poled to pass liquid only from the chamber to the outlet.

REFERENCES:
patent: 3227158 (1966-01-01), Mattingly
patent: 4302186 (1981-11-01), Cammack et al.

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