Waterbed mattress air bleeder valve

Details Waterbed mattress air bleeder valve Waterbed mattress air bleeder valve

1991-03-27

1991-10-15

Grosz, Alexander

Beds

Bedclothing

And means to facilitate changing thereof

5508, 141386, 220855P, A47C 2708

Patent

active

050561715

ABSTRACT:
A standpipe to facilitate bleeding of air through the flexible filler spout of a waterbed mattress includes an elongated cylindrical tube adapted for a frictional slide fit within the spout end fitting so as to afford a substantially liquid tight seal between the tube and end fitting. A lip protrudes outwardly from the bottom of the tube to engage the underside of the spout and thereby resist removal of the standpipe from the spout. A collar at the top end of the standpipe seats upon the spout in the lowered position of the standpipe. A transverse closure plate closes and seals the top end of the standpipe, but air can escape through a sidewall opening adjacent to and below the closure plate. Just below the sidewall openings, a check valve is provided to allow the escape of air from the mattress, yet prevent air from being drawn into the mattress by suction. Pivotal handles on the threaded cap for the spout may be used to engage the standpipe for lifting it from the spout.

REFERENCES:
patent: 3203665 (1965-08-01), Grant et al.
patent: 3856188 (1974-12-01), Newby
patent: 4316489 (1982-02-01), Bova

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