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1. (WO2018063942) IMPROVED VALVE ASSEMBLY

Pub. No.:    WO/2018/063942    International Application No.:    PCT/US2017/053060
Publication Date: Fri Apr 06 01:59:59 CEST 2018 International Filing Date: Sat Sep 23 01:59:59 CEST 2017
IPC: E21B 34/06
F16K 17/04
E21B 43/12
Applicants: OSBORNE, Lawrence
PRATHER, Joshua, Terry
Inventors: OSBORNE, Lawrence
PRATHER, Joshua, Terry
Title: IMPROVED VALVE ASSEMBLY
Abstract:
A valve with a shuttle for use in a flow management system is capable of bypassing a backflow. The valve comprises: a spring biased shuttle within a valve body through hole and coaxially arranged for translating along a through hole axis; the valve body including an upper housing and a lower housing; the upper housing having a box end with a box end face, a tapered internal thread, an internal nose, and a sidewall spill port below the nose; the lower housing having a pin end with a tapered external thread, the thread extending between a pin face and a pin shoulder and engaging the box end thread; a shuttle upper end for selectively engaging the nose and a shuttle skirt for selectively blocking the sidewall port; a spring upper end for engaging the shuttle or a structure that extends from the shuttle; and a spring lower end for engaging the pin end or a structure that extends from the pin end.