DOUGLAS JAMES BOYD
Pilots at Patterson Ln, Marshalltown, IA

5427358, Jun 27, 1995

Jun 23, 1994

8/264607

Philip W. Eggleston - Marshalltown IA
Douglas J. Boyd - Marshalltown IA

Fisher Controls International, Inc. - Clayton MO

F16K 5100

251367

A fluid control valve for controlling fluid flow includes a valve housing having an inlet port, an outlet port, and a passage in the valve housing interconnecting and permitting fluid communication between the inlet port and the outlet port. The passage is substantially smoothly contoured along the length of the interior thereof so that when fluid flows through the passage, the flow of fluid will not substantially increase in turbulence in the passage. The fluid control valve further includes a removable valve seat having an inner flow aperture substantially matching the interior contour of the passage thereby minimizing the turbulence of fluid flow in the passage. A valve element is moveable between a first position wherein fluid flow is permitted through the passage and a second position wherein the valve element sealingly engages the valve seat substantially blocking fluid flow through the passage. The valve seat is removably mounted in the passage.

2011008, Apr 14, 2011

Dec 17, 2010

12/971270

Jason Gene Olberding - Marshalltown IA, US
Douglas James Boyd - Marshalltown IA, US
Paul Andrew Day - Marshalltown IA, US

B23P 19/04

29240

Actuator levers, collets and collet tools for use in process control devices are disclosed. An example apparatus includes a tool for installing or removing a collet from an actuator lever. The example tool comprises a tool body and at least one of a plurality of inner-diameter threads, a plurality of outer-diameter threads, or a plate to removably couple the tool to at least one of an actuator lever or a collet. The tool is configured to apply a force to at least one of the actuator lever, the collet, a valve shaft, or an intervening structure to install the collet in or remove the collet from the actuator lever.

7874542, Jan 25, 2011

Aug 9, 2006

11/501315

Jason Gene Olberding - Marshalltown IA, US
Douglas James Boyd - Marshalltown IA, US
Paul Andrew Day - Marshalltown IA, US

Fisher Controls International LLC - St. Louis MO

F16K 31/00

251292, 251304, 403371

Actuator levers, collets and collet tools for use in process control devices are disclosed. An example apparatus includes an actuator lever, a collet coupled to the actuator lever, and a collet tool. In the example apparatus, the collet tool is removably coupled to at least one of the lever or the collet, and the collet tool applies a force to at least one of the actuator lever, the collet, a valve shaft, or an intervening structure to couple or decouple the collet to or from the lever.

7478816, Jan 20, 2009

May 10, 2004

10/842679

Jason G. Olberding - Marshalltown IA, US
Douglas J. Boyd - Marshalltown IA, US

Fisher Controls International, LLC - Saint Louis MO

F16J 3/00

277628, 277644, 277654, 251173, 251306

Apparatus for increasing stiffness in a seal are disclosed. A disclosed apparatus includes a first flexible member having a curved sealing surface and a second flexible member adjacent to a retainer side of the first flexible member. The second flexible member is configured to increase a stiffness of the first flexible member in one of a plurality of flow directions.