Air valve for spas and baths

Details Air valve for spas and baths Air valve for spas and baths

1987-11-18

1990-04-24

Sholl, Linda J.

Baths, closets, sinks, and spittoons

Tubs

Combined with diverse means

251310, 251288, 251209, 137854, A61H 3302

Patent

active

049187686

ABSTRACT:
An air valve for controlling the supply of air to a venturi jet of a spa includes a housing, a cylindrical barrel, means for sealing between the housing and the barrel, and means for rotating the barrel. The housing has an interior chamber extending between an open, cylindrical bore at one end and a pipe coupling at the other end. The housing mounts on the inside wall of the spa, with the open end of the bore facing the inside of the spa and the rest of the housing extending through the side wall and positioned outside the spa. The cylindrical barrel is insertable into and rotatably mounted within the cylindrical bore of the housing. The housing and barrel each include ports that, when overlapping, provide a path for air to flow from a point exterior of the housing, through the overlapping ports, through the interior of the barrel and housing to the pipe coupling. Rotating the barrel to a position where the ports do not overlap blocks the air flow path. The sealing means prevents air from flowing through the valve except when the housing and barrel ports overlap.

REFERENCES:
patent: 865451 (1967-09-01), Swift
patent: 1043935 (1912-11-01), Hitchcock
patent: 2723102 (1955-11-01), Mueller
patent: 3409270 (1968-11-01), Hulsey
patent: 3874374 (1975-04-01), Jacuzzi
patent: 4262880 (1981-04-01), Danko et al.
patent: 4592100 (1986-06-01), Robertson et al.

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