James Chester Hawkins - Allen TX, US David Edwards Woollums - Frisco TX, US Neal Arthur Ackerman - McKinney TX, US Chun Lin - McKinney TX, US Harold Joe McKinney - Durant OK, US Erik Matthew Quijano - San Antonio TX, US
Assignee:
Emerson Process Control - Austin TX
International Classification:
G05D016/02
US Classification:
13750546, 251284
Abstract:
A pressure reducing fluid regulator having a housing with a flange including a plurality of ear-shaped protrusions is disclosed. Each of the protrusions includes at least one aperture configured to receive fastener such that the circumferential spacing between first and second fasteners is less than the circumferential spacing between the second fastener and a third fastener. The regulator includes a valve having a valve seat, a valve disc, a valve stem coupled to the valve disc and a valve guide that holds the valve stem. A lever having a first end coupled to the valve stem and a second end coupled to a diaphragm applies a force to the valve stem in a direction that is non-parallel to the longitudinal axis of the valve stem to cause the valve stem to frictionally engage the valve guide. The valve stem includes a stop that limits travel of the valve stem and disc toward the valve seat.
Field Removable Bonnet Assemblies For Use With Valves
Chun Lin - McKinney TX, US Matthew William Hanusa - McKinney TX, US Roy Ronald Pelfrey - Sherman TX, US Eric Alan Miller - McKinney TX, US
Assignee:
Emerson Process Management Regulator Technologies, Inc. - McKinney TX
International Classification:
F16K 31/44
US Classification:
251214, 251258, 251263, 277375, 277523
Abstract:
Field removable bonnet assemblies for use with valves are described herein. An example field removable bonnet assembly for use with internal valves includes a body that is to be removably coupled to the internal valve. The body defines a bore that is to receive a valve packing. Additionally, the field removable bonnet assembly includes a shaft having a cam assembly that is to rotatably engage a stem of the internal valve. The shaft is rotatably coupled to the body and the shaft is at least partially positioned within the bore. Further, the field removable bonnet assembly includes a removable adjuster that is externally accessible to enable an adjustment of the removable adjuster relative to the body to change a force exerted by the valve packing on the shaft. The removable adjuster is field removable to replace or repair the valve packing.
Chun Lin - McKinney TX, US Eric Alan Miller - McKinney TX, US Roy Ronald Pelfrey - Sherman TX, US Yan Tao Sun - Zhejiang, CN Fan Jian Jun - Shanghai, CN
Assignee:
Emerson Process Management Regulator Technologies, Inc. - McKinney TX
International Classification:
F16K 39/02 F16K 1/38
US Classification:
137630, 13763015
Abstract:
Fluid flow control members for use with valves are described herein. An example fluid flow control member for use with a valve includes a body having a first seating surface to control a flow of fluid through the valve. The body defines a second seating surface opposite the first seating surface to control a flow of fluid through the valve. Additionally, the body defines an aperture to receive a stem of the valve, and a bore surrounded by the first seating surface to receive at least one of a seal or a sliding member each of which have a first surface to be engaged by a second surface of a spring seat coupled to the stem to control a fluid flow through the valve.
Flow Controlled Actuator Apparatus For Use With Self-Closing Stop Valves
Chun Lin - McKinney TX, US Yin Zhuang - Shanghai, CN Lu Cang - Shanghai, CN Fan Jian Jun - Shanghai, CN
Assignee:
Fisher Controls International, LLC - St. Louis MO
International Classification:
F16K 31/12
US Classification:
251 58, 251 61, 251263, 137460, 137496, 137498
Abstract:
An apparatus for operating a device such as a self-closing internal valve is disclosed. The apparatus includes a housing assembly having an internal chamber, a fluid inlet in fluid communication with the internal chamber, and an actuator stem extending from the housing assembly. The actuator stem is moveable in response to the addition or removal of a fluid into or out of the internal chamber. To control the flow rate of a fluid into and out of the internal chamber, the apparatus includes a fluid control valve in fluid communication with the fluid inlet of the housing assembly, wherein the fluid control valve is adapted to restrict the rate of fluid flow into the internal chamber of the housing assembly.
Chun Lin - McKinney TX, US Roy Ronald Pelfrey - Sherman TX, US
Assignee:
Fisher Controls International LLC - St. Louis MO
International Classification:
F16K 21/06
US Classification:
1375145, 137529
Abstract:
Pressure relief valves are described herein. An example pressure relief valve includes a body having external threads to threadably engage another body having a pressurized chamber. Additionally, the pressure relief valve includes a relief valve orifice that is threadably engaged with the body via internal threads of the body. The relief valve orifice includes a seating surface. Further, the pressure relief valve includes a pressure-balanced piston assembly that is slidably movable within the body relative to the relief valve orifice and the seating surface to control the flow of fluid between the pressurized chamber and the relief valve orifice.
Valves Having Removable Internal Actuation Mechanisms
Chun Lin - McKinney TX, US Tung Kim Nguyen - McKinney TX, US Roy Ronald Pelfrey - Sherman TX, US
Assignee:
Fisher Controls International, LLC - St. Louis MO
International Classification:
F16K 31/12
US Classification:
137490, 137221, 137460, 13763015
Abstract:
Internal valve apparatus are described. An example internal valve includes a body having a valve seat disposed between an inlet and an outlet. A flow control member operatively coupled to the body moves between a first position in which the flow control member engages the valve seat to restrict the flow of fluid through the valve and a second position in which the flow control member is spaced from the valve seat to allow the flow of fluid through the valve. The example internal valve further includes a removable actuation member disposed within the body and responsive to a fluid pressure to cause the flow control member to move between the first and second positions.
Redundant Metal-To-Metal Seals For Use With Internal Valves
Redundant metal-to-metal seals for use with internal valves are described. A plug having redundant sealing functionality for use with a poppet of an internal valve includes a tapered surface to sealingly engage a seat of the poppet. Additionally, the plug includes a seal adjacent the tapered surface and disposed in a groove defined by the plug to sealingly engage the seat.
Field Removable Bonnet Assemblies For Use With Valves
Chun Lin - McKinney TX, US Matthew William Hanusa - McKinney TX, US Roy Ronald Pelfrey - Sherman TX, US Eric Alan Miller - McKinney TX, US
Assignee:
Fisher Controls International LLC - Marshalltown IA
International Classification:
F16K 31/44
US Classification:
251214, 251258, 251263, 277375, 277526
Abstract:
Field removable bonnet assemblies for use with valves are disclosed. An example internal valve includes an internal valve body and a field removable bonnet assembly. The field removable bonnet assembly includes a body that is to be removably coupled to the internal valve body and a shaft to be at least partially positioned within the body. The field removable bonnet assembly also includes an adjuster including a first adjuster portion and a second adjuster portion. The body defines a bore having a first diameter portion and a second diameter portion larger than the first diameter portion. The first diameter portion is to receive a valve packing. The second diameter portion to be threadably engaged by the second adjuster portion. The adjuster is externally accessible to adjust the first adjuster portion within the first diameter portion to change a force exerted by the valve packing on the shaft.
Pain Medicine, 2007 Physical Medicine & Rehabilitation, 2007
Awards:
Healthgrades Honor Roll
Languages:
English Mandarin Taiwanese
Education:
Medical School Northwestern University The Feinberg School Of Medicine Graduated: 2002 Medical School Northwestern Memorial Hospital Graduated: 2003 Medical School Rehabilitation Institute Graduated: 2006 Medical School UCLA Med Center Graduated: 2007 Medical School Northwestern University Graduated: 1997
Medical School Northwestern University Feinberg School of Medicine Graduated: 2002
Procedures:
Physical Therapy Neurological Testing
Languages:
English Spanish
Description:
Dr. Lin graduated from the Northwestern University Feinberg School of Medicine in 2002. He works in Dallas, TX and specializes in Pain Management and Physical Medicine & Rehabilitation. Dr. Lin is affiliated with Baylor Medical Center At Uptown, Baylor Scott & White Medical Center Waxahachie and Methodist Dallas Medical Center.
Medical School University of Virginia School of Medicine Graduated: 2004
Languages:
English
Description:
Dr. Lin graduated from the University of Virginia School of Medicine in 2004. He works in Houston, TX and specializes in Cardiovascular Disease and Internal Medicine. Dr. Lin is affiliated with Houston Methodist Hospital and Houston Methodist Willowbrook Hospital.
Northwestern University (2002) Rehabilitation Institute of Chicago (2006) *Physical Medicine & Rehabilitation UCLAVA Hospitals (2007) *Interventional Pain Medicine
Northwestern University, Feinberg School of Medicine - Doctor of Medicine Ronald Reagan UCLA Medical Center - Fellowship - Pain Management Rehabilitation Institute of Chicago - Residency - Physical Medicine and Rehabilitation Northwestern Memorial Hospital - Internship - Physical Medicine and Rehabilitation
Board certifications:
American Board of Physical Medicine and Rehabilitation Certification in Physical Medicine and Rehabilitation American Board of Physical Medicine and Rehabilitation Sub-certificate in Pain Medicine (Physical Medicine and Rehabilitation)