Patent · US Active

Bypass valve

US10822896B2 · kind B2 · utility

0Cited by

7References

25Claims

0Family size

Assignee

Baker Hughes, a GE company, LLC · US

Inventors

Darin H. Duphorne · Houston, US
Gregory L. Hern · Porter, US
William A. Hered · Houston, US

Key dates

Filing date	Nov 7, 2017
Grant date	Nov 3, 2020
Priority date	—
Expiry date	Jun 28, 2038

Classification

Technology area (CPC E)Fixed Constructions
CPC primaryE21B2200/06
WIPO fieldCivil engineering
WIPO sectorOther fields

Abstract

A method and apparatus for controlling fluid flow through a drill string includes a housing having an axis, a radial wall with a bore extending axially therethrough, and an aperture formed in the radial wall. The aperture is in fluid communication with the bore. A piston is located inside the housing and has an orifice configured to permit axial fluid flow through the housing. The spring axially biases the piston to a closed position.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.