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US 5,836,483 AGranted
Self-regulating fluid dispensing cap with safety pressure relief valve for dental/medical unit fluid bottles
AssigneeAerotech Dental Systems, Inc.
InventorJimmy D. Disel
Life of this patent
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Abstract
Unitary, self-regulating fluid dispensing cap for a dental unit water line treatment system having both a regulator valve and a relief valve located therein, and threads to receive a fluid bottle. The cap receives unregulated high pressure air of 50-80 psi and controls and reduces the pressure to about 30-35 psi with the adjustable regulator valve. The relief valve prevents the fluid bottle from bursting if over pressure of above about 35 psi, or other selected value, builds up in the bottle.
Claims10
A cap for a water line treatment system comprising in operative combination:
- (a) a generally cylindrical cap body having a recess in one end and threads in said recess for receiving engaging a fluid bottle for supply of fluid to said water line;
- (b) said cap including a regulator valve and a relief valve disposed in bores therein;
- (c) said cap including a high pressure air inlet bore to said regulator valve and a low pressure bore leading from said regulator valve into communication with a headspace volume in said bottle;
- and
- (d) said relief valve is located in said cap in communication with said low pressure bore, said relief valve includes means for preventing overpressure build-up in said bottle.
2 more elements
Dependencies are inferred from the claim text.