J. Yen Ligh - Houston TX Juan A. Giscard - Houston TX
Assignee:
Valve Concepts, Inc. - Houston TX
International Classification:
F16K 1500
US Classification:
1375195
Abstract:
A check valve having an elongated body with bore therethrough, the bore having a small diameter section abutting a downstream frustoconical section with an increasing diameter, a ball positioned downstream of the small diameter section and movable in the frustoconical section and a pin blocking the bore to keep the ball at or near the frustoconical section and near to the small section, such that a reversal in fluid flow will seat the ball within the frustoconical section and block the bore.