초록 ▼

A seal arrangement includes a groove provided in a surface surrounding a port, and an elastic sealing material disposed in the groove. The sealing material includes a portion extending out of the groove, and the groove and sealing material are configured so as to provide a void between the extending

A seal arrangement includes a groove provided in a surface surrounding a port, and an elastic sealing material disposed in the groove. The sealing material includes a portion extending out of the groove, and the groove and sealing material are configured so as to provide a void between the extending portion and the sidewall portions of the groove such that material may elastically fill the void when it is engaged by a valve member, and such that it may return to its original shape upon disengagement of the valve member without substantial permanent deformation.

대표청구항 ▼

[ I claim:] [1.] A method of forming a seal between a cavity in a valve body of a diaphragm valve and a port provided in said valve body, comprising:providing a circumferential groove in a surface of said valve body surrounding said port;disposing an elastic sealing material in said groove, said sea

[ I claim:] [1.] A method of forming a seal between a cavity in a valve body of a diaphragm valve and a port provided in said valve body, comprising:providing a circumferential groove in a surface of said valve body surrounding said port;disposing an elastic sealing material in said groove, said sealing material having an extension portion which at least partially extends out of said groove past said surface of said valve body, and said sealing material being configured to provide a void within said groove between said extension portion and a sidewall of said groove; andbringing a valve member into a closed position in which said valve member closes said port and elastically compresses said extension portion such that said extension portion at least partially fills said void within said groove.