|국가/구분||United States(US) Patent 등록|
|미국특허분류(USC)||137/315 ; 137/4542 ; 137/5121 ; 137/515|
|발명자 / 주소|
|출원인 / 주소|
|인용정보||피인용 횟수 : 15 인용 특허 : 3|
The invention contemplates a particular body construction and assembly for a check valve or the like whereby the entire valve assembly may be readily installed as a unit within the bore of standard pipe or conduit, or a standard fitting therefor. A single circumferentially extending radially inwardly open groove in the bore of the pipe, conduit or fitting, faces a corresponding radially outwardly open groove in the valve body, and stiffly compliant circumferentially extensive retainer element such as a wire of suitable gage substantially fills these groo...
In combination, first means of conducting fluid flow and including a circular bore at an open end thereof, said bore having a circumferentially continuous annular groove therein at a location axially offset from said open end, and an insert valve removably seated in said bore; said insert valve comprising an annular body with a cylindrical outer surface sized for support in said bore in axial overlap with said groove, an externally open circumferential groove in said body and having sectional proportions substantially matching but radially opposed to tho...