One-piece valve for a closed enclosure, its production process,

Details One-piece valve for a closed enclosure, its production process, One-piece valve for a closed enclosure, its production process,

1987-07-14

1990-02-13

Yu, Mickey

Amusement devices: toys

Inflatable

Having check valve

137843, 137859, A63H 306, F16K 1514

Patent

active

049002880

ABSTRACT:
A one-piece valve for a closed enclosure. The valve is formed in the thickness of at least a part of the wall of the enclosure. The valve comprises an inside cavity communicating with the outside of the enclosure by means of a first hole, and with the inside of the enclosure by means of at least one second hole. The valve element is an integral part of the enclosure and occupies the central part of the cavity of the enclosure. The valve can be used for closing inflatable enclosures, particularly balloons, which can be inflated or deflated at will by the user.

REFERENCES:
patent: 1051738 (1913-01-01), Kavanagh
patent: 1942959 (1934-01-01), Fenton
patent: 2088248 (1937-07-01), Perry
patent: 2094264 (1937-09-01), Crowley
patent: 2589716 (1952-03-01), Marsh
patent: 2604297 (1952-07-01), Winstead
patent: 2795425 (1957-06-01), Orms
patent: 3048860 (1962-08-01), Richardson
patent: 4240630 (1980-12-01), Hoffman

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