Tub transfer-diverter valve with built-in vacuum breaker and bac

Details Tub transfer-diverter valve with built-in vacuum breaker and bac Tub transfer-diverter valve with built-in vacuum breaker and bac

1989-05-19

1990-09-04

Michalsky, Gerald A.

Fluid handling

Back flow prevention by vacuum breaking

Air vent in liquid flow line

137119, F16K 1100, F16K 2402

Patent

active

049535854

ABSTRACT:
A transfer-diverter valve assembly is provided including vacuum breaker and back-flow prevention structure. The valve is formed as a single unit for mounting on the deck or flange of a tub, bath or similar fixture and is designed for ready installation as well as ready access to the unit for maintenance or replacement. The valve assembly includes a manually actuated diverter valve for transferring liquid flow from an inlet to one or another of multiple outlets, with a back-flow preventer/vacuum breaker valve located in an inlet flow path and actuatable by changes in fluid flow pressure and direction or atmospheric pressure. In addition, a back-flow preventer valve is located in a first outlet flow path and normally biased to close the inlet flow path, but opens in response to flow from the inlet.

REFERENCES:
patent: 3144873 (1964-08-01), Moore et al.
patent: 3180352 (1965-04-01), Kersten et al.
patent: 4224962 (1980-09-01), Orszullok
patent: 4326671 (1982-04-01), Goguen
patent: 4589438 (1986-05-01), Breda

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