Patent Number: 8,820,358

Title: Check valve

Abstract: A check valve including a cylindrical valve well defining a chamber, a valve disk, a pin centrally connecting the valve well to the valve disk; the valve disk being axially symmetrically positioned with respect to the valve well. The valve disk forms a fluid seal with an annular rim of the valve well when a first pressure acting on the valve disk is greater that a opposing second pressure within the chamber. The check valve further includes a plurality of vanes disposed within the chamber, where the vanes prevent the valve disk from collapsing into the chamber due to an excessive first pressure on the valve disk.

Inventors: Tan; Changlin (Singapore, SG)

Assignee: Hewlett-Packard Development Company, L.P.

International Classification: F16K 15/14 (20060101)

Expiration Date: 9/02/12018