Disconnector for the protection of the watermain, with particula

Details Disconnector for the protection of the watermain, with particula Disconnector for the protection of the watermain, with particula

1990-02-20

1991-08-13

Dawson, Robert A.

Liquid purification or separation

Structural installation

Closed circulating system

137215, 137386, 137583, 433 92, F16L 5507

Patent

active

050394053

ABSTRACT:
The present invention relates to a back-flow prevention device for use with a water supply for supplying water to dental instruments within a dental clinic for preventing bacteria contamination of a water source feeding water supply. The device provides no mechanical connection between the water source and the water supply.

REFERENCES:
patent: 3482313 (1969-12-01), Stram
patent: 3754741 (1973-08-01), Whitehurst
patent: 4245989 (1981-01-01), Folkenroth et al.
patent: 4293300 (1981-10-01), Cattani
patent: 4344756 (1982-08-01), Folkenroth et al.
patent: 4386910 (1983-06-01), Cattani
patent: 4414998 (1983-11-01), Rudler et al.
patent: 4580978 (1986-04-01), Motola et al.
patent: 4684345 (1987-08-01), Cattani

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