Invention Grant
- Patent Title: Subsea hydraulic coupling with metal bore liner
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Application No.: US15730993Application Date: 2017-10-12
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Publication No.: US10557577B2Publication Date: 2020-02-11
- Inventor: Robert E. Smith, III , Scott Stolle
- Applicant: National Coupling Company, Inc.
- Applicant Address: US TX Stafford
- Assignee: National Coupling Company
- Current Assignee: National Coupling Company
- Current Assignee Address: US TX Stafford
- Agency: Blank Rome LLP
- Main IPC: F16L21/08
- IPC: F16L21/08 ; F16L21/00 ; F16L1/26 ; F16L57/06

Abstract:
A female hydraulic coupling member has a pressure-energized C-seal having an internal cavity that is positioned to seal between the body of the coupling and the probe of a corresponding male hydraulic coupling member inserted in the receiving chamber. A metal sleeve lines at least a portion of the receiving chamber to resist galling. The main portion of the sleeve has an inside diameter (i.d.) and an outside diameter (o.d.) with a first end of the sleeve abutting a shoulder in the central axial bore of the coupling member. An opposing second end of the sleeve has an annular, axial extension with a larger i.d. and a smaller o.d. than the main portion of the sleeve. At least a portion of the extension projects into the internal cavity of the pressure-energized C-seal so as to retain and position it.
Public/Granted literature
- US20180106403A1 Subsea Hydraulic Coupling With Metal Bore Liner Public/Granted day:2018-04-19
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