Invention Grant
- Patent Title: Integral check valve lock open device for oil and gas equipment
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Application No.: US17464306Application Date: 2021-09-01
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Publication No.: US11781397B2Publication Date: 2023-10-10
- Inventor: George Todd Lowry , Christopher Len Jackson
- Applicant: George Todd Lowry , Christopher Len Jackson
- Applicant Address: US TX Magnolia
- Assignee: George Todd Lowry,Christopher Len Jackson
- Current Assignee: George Todd Lowry,Christopher Len Jackson
- Current Assignee Address: US TX Magnolia
- Agency: Ochoa & Associates, P.C.
- Agent M. Susan Spiering
- Main IPC: E21B33/06
- IPC: E21B33/06 ; F16K31/52 ; F16K15/02 ; F16K11/04 ; F16K31/50 ; F16K15/18 ; F16K31/60 ; F16K11/048
Abstract:
An inventive lock open device for use with a poppet type check valve is disclosed. The device permits bidirectional flow of fluid or gas by defeating the check valve sealing device which permits hydrostatic testing without the need for check valve disassembly or the need for additional tooling.
Public/Granted literature
- US20220065065A1 INTEGRAL CHECK VALVE LOCK OPEN DEVICE FOR OIL AND GAS EQUIPMENT Public/Granted day:2022-03-03
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