초록 ▼

A check valve including a housing formed by a base portion and a cap portion positioned in telescoping relation with each other. A disc shaped valve member is positioned within the housing and is defined by opposing first and second planar sides. The valve member includes a spherical portion located

A check valve including a housing formed by a base portion and a cap portion positioned in telescoping relation with each other. A disc shaped valve member is positioned within the housing and is defined by opposing first and second planar sides. The valve member includes a spherical portion located centrally thereon and which is captured between first and second valve supports supported on the base portion and cap portion, respectively. The valve supports hold the valve member in engagement with a valve seat, and the valve member moves out of engagement with the valve seat in response to a fluid pressure applied at a fluid inlet in the base portion to permit forward fluid flow while preventing fluid flow in the reverse direction.

대표청구항 ▼

[ What is claimed is:] [1.] A check valve allowing fluid flow in a first direction and preventing fluid flow in a second direction comprising:a housing having a first portion defining an inlet and a second portion defining an outlet;an elastomeric valve member extending diametrically across said hou

[ What is claimed is:] [1.] A check valve allowing fluid flow in a first direction and preventing fluid flow in a second direction comprising:a housing having a first portion defining an inlet and a second portion defining an outlet;an elastomeric valve member extending diametrically across said housing between said inlet and said outlet, said valve member including opposing first and second sides and a peripheral outer edge;said valve member defining a geometrically central axis extending perpendicular to said first and second sides;first and second protrusions extending from said first and second sides, respectively, of said valve member, said first and second protrusions defining first and second engagement surfaces intersected by said central axis;a first valve support supported on said first portion adjacent said fluid inlet and engaging said first engagement surface in surface contact;a second valve support supported on said second portion adjacent said fluid outlet and engaging said second engagement surface in surface contact;a valve seat located on said first portion adjacent said inlet wherein said first side of said valve member engages said valve seat radially outwardly from said first and second valve supports; andwherein said valve member flexes to cause said peripheral outer edge to move toward said outlet and permit fluid flow in said first direction, and said valve member cooperates with said valve seat to prevent fluid flow in said second direction.