Inflator manifold having plastic parts

Details Inflator manifold having plastic parts Inflator manifold having plastic parts

1993-03-22

1994-04-26

Swinehart, Edwin L.

Buoys, rafts, and aquatic devices

Rafts

Inflatable

285901, 137232, 137853, F16K 1520

Patent

active

053061870

ABSTRACT:
An inflator manifold made of plastic materials that is as strong as metallic inflator manifolds and that has the same external dimensions of metallic inflator manifolds so that it meets industry strength and size standards. The outermost end of the inflator manifold is capped by an end cap having external and internal threads so that a double screw threaded engagement is achieved that matches the strength of metallic threads. The side walls of the inflator manifold are thickened in an internal direction so that the bore for gaseous fluids under pressure entering the article to be inflated has a diameter less than the diameter of a bore of a metallic inflator manifold. A check valve that admits gaseous fluids into the article is formed by positioning a tubular plastic member in the bore, capping the innermost end of the tubular plastic member with an imperforate plate, and forming at least one aperture in the tubular plastic member just inwardly of the capped innermost end so that the gaseous fluids are constrained to flow through the at least one aperture. A resilient sleeve covers the at least one aperture when no gaseous fluid is flowing, and is lifted from the at least one aperture by the force of the flow of the gaseous fluid only when the article is being inflated.

REFERENCES:
patent: 3142850 (1964-08-01), De Boer
patent: 3724488 (1973-04-01), Featherstone
patent: 3754731 (1973-08-01), Mackal et al.
patent: 3983907 (1976-10-01), Sorensen
patent: 3995653 (1976-12-01), Mackal et al.
patent: 4413645 (1983-11-01), Seabase et al.

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