Christopher D Cunningham

6365268, Apr 2, 2002

Jun 5, 2000

09/587705

Michael R. Williams - Houston TX
Christopher E. Cunningham - Spring TX

FMC Corporation - Chicago IL

B32B 516

428327, 428323, 428325, 428332, 42840221, 42840224, 4284231

An insulation material useful in deep water well drilling applications includes an elastic polymer matrix, a plurality of rigid macro-beads within the elastic polymer matrix, an inelastic polymer matrix within the macro-beads, and a plurality of hollow, insulative micro-beads within the inelastic polymer matrix. The insulation material has adequate flexibility and elasticity to withstand thermal expansion and contraction, adequate compressive strength to withstand high water pressures, and good insulative properties at cold temperatures near the freezing point of water.

6923423, Aug 2, 2005

Jul 5, 2002

10/190174

Taylor L. Jones - Houston TX, US
Philip Hernandez - Stafford TX, US
Archie L. Smith - Marble Falls TX, US
David E. Cain - New Braunfels TX, US
Gregory L. Glidden - Spring TX, US
Christopher D. Bartlett - Spring TX, US
Christopher E. Cunningham - Spring TX, US
Paul P. Luangraj - Houston TX, US

FMC Technologies, Inc. - Chicago IL

E21B007/12
F16K031/143

251 14, 251 636, 251328, 251360, 166373

A gate valve comprises a valve body, a stem bore which extends through the valve body, a stem which is disposed in the stem bore and which includes a first stem portion that is sealed to the stem bore, a second, smaller diameter stem portion that is sealed to the stem bore, and a gate pocket that is located between the first and second stem portions, and gate which is disposed within the gate pocket between the first and second seats.

58904506, Apr 6, 1999

Jul 1, 1997

8/886589

Robert S. Hamell - Houston TX
Harold B. Skeels - Kingwood TX
Christopher D. Bartlett - Spring TX
Christopher E. Cunningham - Spring TX

FMC Corporation - Chicago IL

F16K 3700

116277

The present invention is directed to a valve position indicator for indicating an open or closed position of a valve having a valve stem, the valve position indicator comprising a body adapted to be mounted to a subsea xmas tree structure, a traveling block movably connected to the body by at least one guide bolt, the traveling block including a threaded hole for engaging a threaded extension shaft which is coupled to the valve stem, a rigid tube connected to the body and having first and second open ends, and a coiled spring member having one end connected to the traveling block and the other end extending through the first end of the rigid tube, wherein the extension of the spring member beyond the second end by a predetermined amount provides a visual indication that the valve is in its open or closed position, whereby movement of the traveling block in response to actuation of the valve will push or pull the spring member through the tube to provide the desired visual indication.