Valve device, especially for air cushions

Details Valve device, especially for air cushions Valve device, especially for air cushions

1975-12-31

1976-10-05

Weakley, Harold W.

Fluid handling

Inflatable article

13751615, F16K 1520

Patent

active

039839079

ABSTRACT:
A valve device, especially for an air cushion of plastic sheet, said device having a first portion which is adapted to be mounted in an aperture in the wall of the cushion, said first portion having a relatively large bore which is adapted to constitute an outlet for emptying the air cushion, a second portion of the valve device being adapted to be screwed into the bore in the first portion, the two portions having valve surfaces which are adapted to close the bore airtightly when the second portion is screwed completely into the bore, a relatively small air passage in the second portion adapted to constitute an inlet for pressurized air during inflation of the air cushion, a non-return valve in said air passage, and stop means at the outer end of said second portion adapted to prevent the second portion's becoming completely detached from the first portion.

REFERENCES:
patent: 511706 (1893-12-01), Lamplugh
patent: 2854018 (1958-09-01), Kilmarx
patent: 3410299 (1968-11-01), Whittington
patent: 3491786 (1970-01-01), Crossman

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