Invention Grant
- Patent Title: Hydraulic coupling member with pressure-relieving poppet valve
- Patent Title (中): 具有减压提升阀的液压联轴器
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Application No.: US13216920Application Date: 2011-08-24
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Publication No.: US08689828B2Publication Date: 2014-04-08
- Inventor: Robert E. Smith, III
- Applicant: Robert E. Smith, III
- Applicant Address: US TX Stafford
- Assignee: National Coupling Company, Inc.
- Current Assignee: National Coupling Company, Inc.
- Current Assignee Address: US TX Stafford
- Agency: Wong, Cabello, Lutsch, Rutherford & Brucculeri, LLP.
- Main IPC: F16K5/10
- IPC: F16K5/10 ; F16L37/28 ; F16L37/32

Abstract:
A poppet valve for a hydraulic coupling member has an internal, spring-loaded check valve (which may be a ball check valve) in fluid communication with a bleed passage. The check valve may be configured as a pressure-relief valve which bleeds off excess hydraulic fluid pressure within the coupling member to a preselected value. A poppet valve according to the invention may be used in female coupling members and/or male coupling members. Certain embodiments of the invention may be retrofitted to coupling members of the prior art.
Public/Granted literature
- US20130025713A1 Hydraulic Coupling Member With Pressure-Relieving Poppet Valve Public/Granted day:2013-01-31
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