Fisher Controls International LLC

Michael Melvin Anderson

Michael Wildie McCarty

Ted Alan Long

Hans D Baumann

Michel Ken Lovell

Douglas Paul Gethmann

David John Koester

Galen Dale Wilke

Paul J Schafbuch

Thomas Adam Brandau

Doug Gethmann

Mark Stiehl

Wayne Russell Faas

Alan D Bremers

Michael Wildie Mccarty

Mark D Stiehl

Example apparatus include load relieving stem connectors. An example apparatus includes a connector housing including an internal cavity therein, a load relieving body disposed in the internal cavity, and a shaft coupled to the load relieving body. In the example apparatus, the shaft is to rotate the load relieving body between a first position and a second position.

Load relieving stem connectors

Apparatus for operatively connecting an actuator rod to a valve stem is disclosed. An example apparatus includes a connector housing having an outer surface and an inner surface where the inner surface defines an internal cavity. The example apparatus also includes an actuator rod passage extending from the outer surface into the internal cavity that is adapted to receive at least a portion of the actuator rod and a valve stem passage extending from the outer surface into the internal cavity that is adapted to receive at least a portion of the valve stem. Additionally, the example apparatus includes a load relieving body disposed within the internal cavity between the actuator rod passage and the valve stem passage.

A fluid pressure reduction device comprises a plurality of stacked disks having a perimeter and a hollow center aligned along a longitudinal axis. Each disk has at least one flow path extending between the hollow center and the perimeter, the flow path including an inlet section, an outlet section, and an intermediate section extending between the inlet and outlet sections. Each flow path intermediate section includes a pressure reducing structure and a recovery zone positioned immediately downstream of the pressure reducing structure.

Fluid pressure reduction device

A process control valve includes a valve stem, a valve plug. The valve stem and the valve plug are attached to one another by an arrangement that includes a locking pin that passes through substantially aligned bores in the valve stem and the valve plug. The locking pin is positively retained mechanically and prevented from extending outside of the bores in the valve stem and the valve plug.

Control valve with retained pin for easy valve trim maintenance

A control valve includes a valve body defining a top opening. A bonnet is provided for closing off the top opening of the valve body. A stem housed in the bonnet and the valve housing slidably moves a valve plug in the valve housing to open and close the valve. A packing assembly is provided for sealing between the stem and bonnet, and a packing retainer maintains the packing assembly within the bonnet. A retainer ring is provided for securing the packing retainer in place. The retainer ring can be formed as a generally cylindrical ring that engages the packing retainer and can be tightened on the packing retainer. Outer notches formed in an exterior surface of the lock nut provide for tightening of the lock nut with a tool. In addition, the retainer ring may include a lower portion that closely receives an outer surface of the packing retainer, thereby to center the retainer ring with the packing retainer. Still further, the retainer ring may have an upper portion that automatically centers the retainer ring with the bonnet.

Retainer lock nut for fluid pressure control device

A fluid pressure reduction device with low noise generation. A stack of annular disks with fluid passageways formed of inlet slots, outlet slots, and interconnecting plenums. Selectively stacking and orienting the annular disks along with an asymmetric slot pattern creates the desired fluid passageways without creating an uninterrupted axial fluid flow path. High recovery inlet stages are in fluid communicating series with low recovery outlet stages and the combination provides a high performance fluid pressure reduction device with low noise generation.

Growing community of inventors

Marshalltown, IA, United States of America

Michael Melvin Anderson