William Everett Wears

US Patent:

6789784, Sep 14, 2004

Filed:

Jan 3, 2003

Appl. No.:

10/336476

Inventors:

William Everett Wears - Marshalltown IA
Lynn Dean Mahncke - Marshalltown IA

Assignee:

Fisher Controls International LLC - St. Louis MO

International Classification:

F16K 2500

US Classification:

251360, 251357

Abstract:

An improved seat ring, valve body, and seat ring valve assembly have self-aligning characteristics that reduce leakage without the need for an unacceptably high level of assembly torque. The seat ring includes at least one annular thrust bearing surface rim for receiving a valve plug to open and close the valve. The seat ring further includes threads positioned on its exterior surface for mating with threads in the valve body to provide a secondary seal of the seat ring. In order to prevent unacceptable leakage, a point of contact is provided to seat on an angled body contact surface of the valve to form a superior primary contact seal. The seat ring valve assembly reduces torque requirements, properly aligns the seat ring within the cavity, and reduces leakage.

US Patent:

6866244, Mar 15, 2005

Filed:

Feb 7, 2003

Appl. No.:

10/360979

Inventors:

William E. Wears - Marshalltown IA, US

Assignee:

Fisher Controls International LLC - St. Louis MO

International Classification:

F16K041/04
F16J015/20

US Classification:

251214, 251318

Abstract:

A fluid control valve, in which the usual metal stem guide bushings have been eliminated, includes a valve bonnet and a packing nut threadably engaging the valve bonnet. A valve stem passes through the valve bonnet and the packing nut in a clearance fit so that there is no engagement therebetween. A single packing set is included, having a middle virgin PTFE sealing ring, a carbon or glass filled PTFE male packing ring on one side and a carbon or glass filled PTFE female ring on the other side. Belleville disk springs may be provided intermediate the packing nut and the packing set, for supplying live loading to the packing. The packing provides sufficient stem guidance, interference fit with the valve stem to enable the usual upper and lower metal guide bushings to be eliminated.

US Patent:

7014170, Mar 21, 2006

Filed:

Jul 30, 2004

Appl. No.:

10/903571

Inventors:

William E. Wears - Marshalltown IA, US
Lynn D. Mahncke - Marshalltown IA, US

Assignee:

Fisher Controls International LLC. - St. Louis MO

International Classification:

F16K 31/00

US Classification:

251360

Abstract:

A valve seat assembly includes a valve body defining a cavity having an axis, the cavity having a threaded receiving portion and a conical contact surface substantially concentric with the threaded receiving portion. The valve seat assembly further includes a seat ring formed about a center axis having a threaded portion to engage the valve body threaded receiving portion. The seat ring also having an outer surface including a curved contact surface sized to sealingly engage the conical contact surface wherein the curved contact surface is slidable over the conical contact surface to position the seat ring so that the seat ring center axis is substantially aligned with the cavity axis.

US Patent:

7028712, Apr 18, 2006

Filed:

Jul 17, 2002

Appl. No.:

10/197068

Inventors:

William Everett Wears - Marshalltown IA, US
David George Halm - Haverhill IA, US

Assignee:

Fisher Controls International LLC. - St. Louis MO

International Classification:

F16K 3/22

US Classification:

13762533, 13762538

Abstract:

A skirt guided control valve provides streamlined flow and minimum resistance to flow in flow up and flow down conditions when the valve is open. The skirt guided control valve has a fluid inlet, a fluid outlet, a passageway disposed between the fluid inlet and fluid outlet, a valve seat and a valve plug with a skirt. The valve seat and the skirt portion of the valve plug include blended edges and contoured surfaces to provide for streamlined flow.

US Patent:

7832425, Nov 16, 2010

Filed:

Aug 31, 2006

Appl. No.:

11/469047

Inventors:

William E. Wears - Marshalltown IA, US
Michael W. McCarty - Marshalltown IA, US

Assignee:

Fisher Controls International LLC - Marshalltown IA

International Classification:

F16K 3/22

US Classification:

13762533, 251118

Abstract:

A valve assembly includes a valve body, a valve seat, and a valve plug. The valve body defines a flow path for a fluid. The valve plug is adapted for displacement between a closed position and an open position in the valve body. The valve plug includes a crown, a skirt and a protrusion. The crown is for sealingly engaging the valve seat when the valve plug is in the closed position. The skirt defines a flow path for accommodating the fluid when the valve plug is in the open position. The protrusion is substantially concentrically aligned with the skirt. Each of the skirt or the protrusion have a surface treatment for enhancing the flow of the fluid through the valve when in the one or more open positions.

US Patent:

7832426, Nov 16, 2010

Filed:

Sep 5, 2006

Appl. No.:

11/470029

Inventors:

William E. Wears - Marshalltown IA, US

Assignee:

Fisher Controls International LLC - Marshalltown IA

International Classification:

F16K 1/12

US Classification:

13762538, 13762548, 251118

Abstract:

A fluid control device including a valve body, a control member, and a one-piece bonnet. The valve body defines a flow path for a fluid. The control member is disposed in the valve body and adapted for displacement between at least a first position and a second position. The one-piece bonnet is coupled to the valve body and defines a protrusion. The protrusion extends at least partially into the flow path and is arranged to direct at least some of the fluid flowing along the flow path when the control member is disposed between the first position and the second position.

US Patent:

7854239, Dec 21, 2010

Filed:

Mar 3, 2008

Appl. No.:

12/041169

Inventors:

William E. Wears - Marshalltown IA, US
Galen D. Wilke - Ames IA, US
John Christen - Waterloo IA, US

Assignee:

Fisher Controls International LLC - St. Louis MO

International Classification:

F16K 1/42

US Classification:

1376254, 13762542, 251363

Abstract:

A trim assembly for a control valve includes a seal for sealing a leak path, where the seal is provided to perform advantageously in high-temperature applications, e. g. , applications including temperatures of at least 450 F. (232. 22 C. ). The control valve comprises a valve body and control element. The control element is disposed within the valve body for controlling the flow of fluid therethrough. The trim assembly comprises a valve seat and a retention ring. The valve seat is fixed to the valve body, and the retention ring is threadably connected to the valve seat. The seal can be effected by an annular graphite seal compressed between the trim assembly and the valve body, or by a metal-to-metal contact between the retention ring and the valve body.

US Patent:

8122908, Feb 28, 2012

Filed:

Feb 20, 2008

Appl. No.:

12/034117

Inventors:

William E. Wears - Marshalltown IA, US
Daniel M. Adams - Marshalltown IA, US
Ross A. Schade - Ames IA, US
David G. Halm - Haverhill IA, US

Assignee:

Fisher Controls International LLC - Marshalltown IA

International Classification:

F16K 11/044

US Classification:

13762548, 251118

Abstract:

A three-way valve body comprises a throat defining a generally cylindrical throat cavity. At least one flow diverter is carried by the valve body and extends into the throat cavity. The flow diverter advantageously interrupts any circulatory fluid flow within the throat cavity, thereby increasing the efficiency at which fluid flows through the valve body. In one embodiment, the at least one flow diverter can comprise one or more ribs integrally formed with the valve body and disposed parallel to a central axis of the throat cavity.