David J Koester, 672302 S 12Th St, Marshalltown, IA 50158

6974121, Dec 13, 2005

Mar 19, 2002

10/101139

David John Koester - Gladbrook IA, US
Sarah Lynn Dvorak - Ames IA, US
Lynn Dean Mahncke - Marshalltown IA, US
Brandon Wayne Bell - Marshalltown IA, US
Loree Lee Bovee - Marshalltown IA, US
Gary Alan Witt - Sherman TX, US

Fisher Controls International, Inc. - Austin TX

F16K025/00

251174, 251177, 251192, 25131507

A control valve of the ball type with bi-directional shutoff capabilities is disclosed. The ball valve including an inlet and an outlet, a ball element and a seal assembly. When closing the valve, the ball element, which is eccentrically mounted on a shaft, rotates to abut the seal assembly. While closed, the seal assembly including a seal housing, a main seal and a resilient member, contacts the ball element at the main seal, while the resilient member biases the main seal toward the ball element. The seal assembly further includes a secondary flowpath between the main seal and seal housing, which is restricted by two unidirectional seal rings.

7077384, Jul 18, 2006

Jan 13, 2004

10/756920

David John Koester - Gladbrook IA, US

Fisher Controls International LLC. - St. Louis MO

F16K 1/42

251363, 251360

A control valve having a seat ring assembly constructed from a unitary piece of material is disclosed. The seat ring assembly may include a base which serves as a valve seat for the valve plug of the valve, and which includes a plurality of exterior threads adapted to rotatably attach to a plurality of interior threads provided within the valve body. The seat ring assembly may also include a post-guided bearing surface to maintain alignment of the valve plug to the valve seat. The seat ring assembly can be secured to the valve body simply by threadably attaching the elements. Moreover, by providing the valve seat and the guide surface as integral parts of the seat ring assembly, manufacturing costs and maintenance requirements are reduced and subsequent seal leak performance is increased.

7469708, Dec 30, 2008

Dec 21, 2004

11/018468

David John Koester - Gladbrook IA, US

Fisher Controls International LLC - St. Louis MO

F16K 27/00

137269, 137602, 251366

Universal fluid valve body apparatus and articles of manufacture are disclosed. An example fluid control valve body includes opposing first and second openings and opposing third and fourth openings. Each of the third and fourth openings is disposed at a respective angle to at least one of the first and second openings and one of the third and fourth openings is configured to enable the fluid control valve body to be mounted directly to a vessel.

7484710, Feb 3, 2009

Feb 28, 2005

11/068946

David John Koester - Gladbrook IA, US
Sarah Lynn Dvorak - Ames IA, US
Lynn Dean Mahncke - Marshalltown IA, US
Brandon Wayne Bell - Marshalltown IA, US
Ronald R. Brestel - Marshalltown IA, US

Fisher Controls International LLC - St. Louis MO

F16K 5/08

251160, 251172, 251192, 251298, 25131507

A control valve of the ball type with bi-directional shutoff capabilities is disclosed. The ball valve including an inlet and an outlet, a ball element and a seal assembly. When closing the valve, the ball element, which is eccentrically mounted on a shaft, rotates to abut the seal assembly. While closed, the seal assembly including a seal housing, a main seal and a resilient member, contacts the ball element at the main seal, while the resilient member biases the main seal toward the ball element. The seal assembly further includes a secondary flowpath between the main seal and seal housing, which is restricted by a high temperature seal.

7980530, Jul 19, 2011

Aug 16, 2005

11/204574

Lynn Dean Mahncke - Marshalltown IA, US
David John Koester - Gladbrook IA, US
Jason Gene Olberding - Marshalltown IA, US
Andrew Kinser - Walnut IA, US

Fisher Controls International LLC - Marshalltown IA

F16K 31/50
F16K 51/00
F16K 5/04
F16J 15/18

251214, 13731528, 277500, 277520

A packing nut assembly for a control valve having a valve body and a valve stem includes a packing box arranged for operative coupling to the valve body and having a primary bore sized to receive the valve stem and first and second counterbores. The first counterbore is sized to receive valve packing and the second counterbore includes internal threads. A packing nut having a central bore is sized to receive the valve stem and includes a threaded outer surface positioned to engage the second counterbore of the packing box. The packing nut includes an adjustment surface positioned to face the first counterbore, and includes an adjustment head having a plurality of tool-receiving apertures sized to receive an adjustment tool.

8286938, Oct 16, 2012

Apr 27, 2007

11/741258

Wade Jonathon Helfer - Ames IA, US
David John Koester - Gladbrook IA, US
Benjamin Uriah Good - Marshalltown IA, US
Paul Russell Dalluge - Marshalltown IA, US
Andrew John Olson - Brookings SD, US

Fisher Controls International LLC - St. Louis MO

F16K 1/42

251174, 251180, 251306, 251314, 251359

Flexible seals for process control valves are disclosed. An example disclosed seal includes a seal for use with a butterfly valve. The example seal includes a substantially flexible ring-shaped carrier configured to be fixed within the butterfly valve and to surround a flow control aperture therein. Additionally, the seal includes a ring-shaped cartridge coupled to an inner diameter of the ring-shaped carrier. The cartridge includes a first portion and a second portion coupled to the first portion to define a circumferential opening to hold a seal ring.

2007013, Jun 21, 2007

Dec 21, 2005

11/313364

Wilbur Hutchens - Marshalltown IA, US
Jason Olberding - Marshalltown IA, US
Larry Weber - Marshalltown IA, US
Wade Helfer - Ames IA, US
David Koester - Gladbrook IA, US
Ted Grabau - Marshalltown IA, US
Harry Champlin - Mystic CT, US

F16K 1/42

251359000

Flexible seals for process control valves are disclosed. An example disclosed seal includes a substantially flexible ring-shaped carrier configured to be fixed within the butterfly valve and to surround a flow control aperture therein. The seal also includes a substantially rigid seal ring that has an outer circumferential surface fixed to the substantially flexible carrier and an inner circumferential surface configured to sealingly engage a control member that operatively interacts with the flow control aperture.

2009002, Jan 22, 2009

Jul 20, 2007

11/780802

David J. Koester - Gladbrook IA, US

F16K 31/00
F16K 51/00
F16K 99/00

13731537, 251 58

A fluid control device or a device for coupling a rotary valve actuator to a rotary valve shaft comprises a housing, a lever, a threaded collet, and first and second stops carried by the housing. The lever comprises a cylindrical member containing the threaded collet. During operation, the first and second stops limit the rotation of the lever between first and second positions, thereby limiting rotation of the valve shaft. During assembly, the device further comprises a third stop that is removably carried by the housing. The third stop engages the lever in the first position simultaneously with the first stop, for example, thereby locking the lever against rotation. With the lever locked, a technician may apply generally any amount of torque to a draw nut disposed on the collet to tighten and/or loosen the collet onto the rotary valve shaft without rotating the lever.