|국가/구분||United States(US) Patent 등록|
|국제특허분류(IPC7판)||F16J-015/48 F16J-015/56 E21B-033/126|
|미국특허분류(USC)||277/236 ; 277/74 ; 277/205 ; 251/214|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 7 인용 특허 : 0|
An improved seal for sealing across an annulus between an inner cylindrical sealing surface and an outer cylindrical sealing surface. The seal provides a body and a flange spaced therefrom with an annular flexible arch extending between the body and the flange and having a taper of its thickness so that its thinnest section is at the mid point of the arch and within its sealing area. A suitable sealing is provided to seal against the surface opposite to the surface against which the flexible annular arch seals so that there is a complete sealing across t...
An annular sealing apparatus for sealing across an annulus between a first member and a second member with one of said members having a cylindrical sealing surface comprising an annular metal seal body having a pair of spaced apart annular flanges and an annular arch extending between said flanges and toward said cylindrical sealing surface of said one of said members, said arch being relatively thick adjacent said flanges and including a thin portion that is progressively thinner toward its apex so that an area of sealing contact with said cylindrical s...