Invention Grant
- Patent Title: Hybrid check valve
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Application No.: US15305249Application Date: 2014-09-09
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Publication No.: US10174852B2Publication Date: 2019-01-08
- Inventor: Abbas Arian , Bruce Mackay
- Applicant: HALLIBURTON ENERGY SERVICES, INC.
- Applicant Address: US TX Houston
- Assignee: Halliburton Energy Services, Inc.
- Current Assignee: Halliburton Energy Services, Inc.
- Current Assignee Address: US TX Houston
- Agency: Kilpatrick Townsend & Stockton LLP
- International Application: PCT/US2014/054703 WO 20140909
- International Announcement: WO2016/039728 WO 20160317
- Main IPC: F16K15/18
- IPC: F16K15/18 ; E21B49/08 ; E21B34/06 ; F16K15/04 ; F16K31/42 ; F16K31/122 ; E21B43/12 ; E21B34/00

Abstract:
An assembly is provided that can include check valve. The check valve can include a ball positioned between an inflow line and an outflow line. The ball can be movable between (i) an open position at which a fluid is allowed to flow between the inflow line and the outflow line and (ii) a closed position at which the fluid is prevented from flowing between the inflow line and the outflow line. The assembly can also include a spring positioned adjacent to the ball and operable to bias the ball in a closed position. The assembly can further include a poppet positioned adjacent to the ball. The poppet can be movable in response to a communication of a pilot pressure to the poppet. Further, the ball can be movable to the closed position in response to a force applied by the poppet.
Public/Granted literature
- US20170037980A1 HYBRID CHECK VALVE Public/Granted day:2017-02-09
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