Nozzle holder for bodily care

Details Nozzle holder for bodily care Nozzle holder for bodily care

1992-10-20

1994-01-25

Wilson, John J.

Dentistry

Apparatus

Having intra-oral dispensing means

128 66, A61G 1702

Patent

active

052811379

ABSTRACT:
The nozzle holder comprises a liquid conduit and a valve (5) actuated by a control button (8) which, in the rest position, leaves free the passage of the jet of pulsed liquid towards the nozzle fixed to the nozzle holder and which, in the pressed position, closes this passage.
The valve (5) comprises a chamber (9) which is in communication with the upstream part (6) of the conduit and connected through the opening (7a) of the valve to the downstream part (7) of said conduit. This chamber (9) is delimited partially by an elastic cup (10) which can be deformed by the button (8) and which, in the rest state of the button (8), under the effect of its own elasticity and of the pressure of the liquid, remains moved away from the opening (7a) of the valve and is completely inactive while, under the action of the pressed button, it covers the opening (7a) of the valve (5) to block the passage of the liquid. In this blocked state, the part of the cup (10) surrounding the opening (7a) of the valve is deformable under the effect of the pulsations of the liquid such that said chamber undergoes a periodic expansion, damping these liquid pulsations.

REFERENCES:
patent: 3540437 (1970-11-01), Troy
patent: 4442831 (1984-04-01), Trenary

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