Valve placement in a multi-ply, inflatable bag

Details Valve placement in a multi-ply, inflatable bag Valve placement in a multi-ply, inflatable bag

1974-11-01

1976-02-24

Werner, Frank E.

Railway rolling stock

Special car bodies

Sleeping

105468, B60P 714

Patent

active

039399958

ABSTRACT:
A multi-ply, inflatable bag, formed from: an inner, inflatable bladder; an outer, protective shell enclosing the bladder; and a valve connected to the bladder and extending outwardly of the bladder and the shell; the valve being located in the eyelet of a rigid grommet; the grommet being secured to the shell about a fold in an edge of the shell, to protect the valve from damage when the bag is crushed; and the grommet also being secured to the shell over a distance, on both sides of the fold and transverse to the fold, which is at least about equal to the distance that the valve extends outwardly of the shell, to protect the valve against damage when the bag is scuffed, rubbed, or struck near the valve.

REFERENCES:
patent: 2853720 (1958-09-01), Friedlander
patent: 3414140 (1968-12-01), Feldkamp
patent: 3554135 (1971-01-01), Duvall et al.

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