초록 ▼

A valve for use with an inflatable article having side walls made of flexible impervious fabric, the valve being attached and sealed to the article at an opening through the side wall thereof. The valve has a hollow valve body having a fixed seat therein, a valve element within the valve body and se

A valve for use with an inflatable article having side walls made of flexible impervious fabric, the valve being attached and sealed to the article at an opening through the side wall thereof. The valve has a hollow valve body having a fixed seat therein, a valve element within the valve body and selectively movable into and out of sealing engagement with the valve seat, and a resilient spring constantly urging the valve element toward and into sealing engagement with the valve seat. The valve is attached and sealed by a nut screwed onto the valve body, the nut having a first, axially outwardly expanding frusto-conical flange on its axially outer end, the first flange underlying the portion of the fabric which surrounds the opening through the side wall of the article, and a second frusto-conical flange attached to the valve body. The second flange is coaxial with and substantially parallel to the first flange; the second flange overlies at least a part of the portion of the fabric which surrounds the opening through the side wall of the article and which overlies the first flange, the two flanges forcibly and sealingly engaging opposite sides of the portion of the fabric which is disposed between them.

대표청구항 ▼

In combination: a valve for us with an inflatable article having side walls made of flexible impervious fabric, and means for attaching and sealing the valve to the article at an opening through the side wall thereof, said valve comprising a hollow valve body having a fixed valve seat therein, a val

In combination: a valve for us with an inflatable article having side walls made of flexible impervious fabric, and means for attaching and sealing the valve to the article at an opening through the side wall thereof, said valve comprising a hollow valve body having a fixed valve seat therein, a valve element within the valve body and selectively movable into and out of sealing engagement with the valve seat, and resilient means constantly urging the valve element toward and into sealing engagement with the valve seat, the means for attaching and sealing the valve to the article comprising a nut screwed onto the valve body, the nut having a first, axially outwardly expanding rigid frusto-conical flange on its axially outer end, said first flange underlying the portion of the fabric which surrounds the opening through the side wall of the article, a second rigid frusto-conical flange attached to the valve body, said second flange being coaxial with and substantially parallel to the first flange, said second flange overlying at least a part of the portion of the fabric which surrounds the opening through the side wall of the article and which overlies the first flange, the two flanges forcibly engaging opposite sides of the said portion of the fabric, whereby to force said portion into a frusto-conical configuration, parallel to and between the confronting surfaces of the first and second flanges, and to form seals between them and the respective surfaces of the said portion of the fabric which they engage.