MICHAEL FOSTER WILSON
Pilots at Dapple Gray St, Spring, TX

5713389, Feb 3, 1998

Aug 24, 1995

8/518949

Michael E. Wilson - Spring TX
Roy C. Bates - Crosby TX

FMC Corporation - Chicago IL

F16K 1500

1375157

The present invention is directed to a check valve assembly comprising an upstream body member and a downstream body member which are joined in sealing engagement to thereby form a closed body; a generally ring-shaped seating member formed from a unitary piece of material and comprising a flat base surface positioned in said closed body with said flat base surface facing upstream, a flat top surface parallel to said flat base surface, a flow passage extending from said base surface to said top surface and a bore extending into said top surface toward said base surface, said bore defining an annular lip surrounding said flow passage and a recessed upward-angled planar top sealing surface; said seating member further comprising a cut-out segment formed in said lip which defines two extensions projecting axially from the top sealing surface and a transverse hole in each extension through which a hinge pin is received to connect a movable flapper lid to said seating member; said flapper lid comprising a flapper sealing surface adapted to sealingly engage the top sealing surface of the seating member to stop backflow when said regular flow pressure from upstream drops to a predetermined level causing the flapper to rest in the closed position,.

2001004, Nov 22, 2001

Mar 22, 2001

09/815436

Christopher Cunningham - Spring TX, US
Christopher Bartlett - Spring TX, US
Thomas Hergarden - Houston TX, US
Philip Hernandez - Stafford TX, US
Michael Wilson - Spring TX, US

E21B033/00

166/086300, 166/089300, 166/075140

A gate valve for a component which includes an elongated body and a flow passage extending generally longitudinally through the body, the flow passage including a generally lateral first branch connected to a generally longitudinal second branch. The gate valve comprises a gate which is moveable generally longitudinally across the first branch between an open position in which a hole in the gate is aligned with the first branch and a closed position in which the hole is offset from the first branch; a conduit which extends through the body from the gate; an actuating mechanism positioned in the conduit for moving the gate from a first position to a second position; and a return biasing mechanism for moving the gate from the second position to the first position; wherein one of the first and second positions corresponds to the open position of the gate and the other position corresponds to the closed position of the gate; and wherein the conduit extends generally longitudinally through the body.

2002018, Dec 12, 2002

Aug 5, 2002

10/213541

Christopher Cunningham - Spring TX, US
Christopher Bartlett - Spring TX, US
Thomas Hergarden - Houston TX, US
Philip Hernandez - Stafford TX, US
Michael Wilson - Spring TX, US

E21B034/04

166/368000, 166/348000, 166/087100, 166/088100, 166/095100, 166/097100

A gate valve for a component which includes an elongated body and a flow passage extending generally longitudinally through the body, the flow passage including a generally lateral first branch connected to a generally longitudinal second branch. The gate valve comprises a gate which is moveable generally longitudinally across the first branch between an open position in which a hole in the gate is aligned with the first branch and a closed position in which the hole is offset from the first branch; a conduit which extends through the body from the gate; an actuating mechanism positioned in the conduit for moving the gate from a first position to a second position; and a return biasing mechanism for moving the gate from the second position to the first position; wherein one of the first and second positions corresponds to the open position of the gate and the other position corresponds to the closed position of the gate; and wherein the conduit extends generally longitudinally through the body.

5676348, Oct 14, 1997

Jun 12, 1996

8/662172

Tep Ungchusri - Woodlands TX
Roy C. Bates - Crosby TX
Michael E. Wilson - Spring TX

FMC Corporation - Chicago IL

F16K 514

251316

A valve comprising a body having an interior cavity, an inlet port and an outlet port; an upstream seat and a downstream seat positioned within the cavity, each seat including a bore in alignment with the inlet and outlet ports to define a flow passage through the valve body; a closure member movably positioned between the seats to either open or close the flow passage; a seat-to-closure member seal defined between each seat and the closure member, the seat-to-closure member seal defining a first area between the seat-to-closure member seal and the bore of the upstream seat; wherein the upstream seat includes a sealing member between the seat and the valve body which is positioned asymmetrically around the bore; and wherein the sealing member defines a second area between the sealing member and the bore which is larger than the first area.