Tescom Corporation

Fisher Controls International LLC

Tescom Corporation, a Minnesota Company

Todd William Larsen

Eric W Neumann

Paul Thomas Street

Jacob T R Renollett

Brian James Tutt

Thomas M Bydalek

Eric J Burgett

Jason David Clifford

Gordon Cameron Muir

William John Neubauer

Robert Kenneth Miller

David L Thomas

John Leonard Schlegel

Chad Ray Kirchner

Brian J Tutt

Jason D Clifford

A high pressure fluid control device includes a valve body defining an inlet, an outlet, and a throat disposed between the inlet and the outlet. The valve body defines a longitudinal axis. A valve seat is disposed in the throat and includes a sloped surface. A seat support is disposed in the throat and is adjacent to the valve seat. The seat support includes a sloped surface adjacent to the sloped surface of the valve seat. A control element is disposed in the valve body and includes a stem and a seating surface. The control element is movable between an open position, in which the seating surface is spaced away from the valve seat, and a closed position, in which the seating surface engages the valve seat. The sloped surface of the seat support provides a rigid support to the valve seat to resist deformation of the valve seat.

Control valve seat and seat support

A valve assembly includes a sensing cavity and a piston cavity defined in valve body and/or in a bonnet. A piston head of a piston may be disposed within the piston cavity, and a piston stem has an end portion in contact with valve plug. A baffle plate has a first surface defining a portion of the sensing cavity and a second surface defines a portion of the piston cavity. The baffle plate includes at least one baffle aperture such that the sensing cavity is in fluid communication with the piston cavity, and pressure in the sensing cavity acts on a surface of the piston head to displace the piston and the valve plug between an open and closed position. The at least one baffle aperture is adapted to restrict the flow of fluid between the sensing cavity and the first working volume.

Piston sensor with baffle plate

Methods and apparatus to couple manifold blocks to form a manifold are disclosed. An example apparatus includes a first manifold block including a first fluid passageway defining a first opening in a first surface of the first manifold block. The example apparatus includes a first keyway extending along the first surface of the first manifold block. The example apparatus includes a first key to be inserted in the first keyway and a second keyway of a second manifold block to couple the first manifold block to the second manifold block to fluidly couple the first fluid passageway to a second fluid passageway of the second manifold block.

Methods and apparatus to couple manifold blocks to form a manifold

Diaphragm interface apparatus to improve a cycle life of a diaphragm are described. An example fluid regulator includes a fluid flow passageway between an inlet and an outlet, where a sensing chamber defines a portion of the fluid flow passageway. A diaphragm senses a pressure in the sensing chamber and a diaphragm interface adjacent the sensing chamber has a curved surface to contact a portion of the diaphragm that moves in response to pressure changes in the sensing chamber. The curved surface affects an amount of stress imparted to the portion of the diaphragm during operation of the fluid regulator.

Diaphragm interface apparatus to improve a cycle life of a diaphragm

A control valve includes a body, a first end cap, a second end cap, an insert, and a piston. The first end cap, second end cap, and insert are removably secured to the body and define a first port, second port, and third port of the control valve, respectively. The piston is positioned within the bore of the body and is movable between a first position in which the first port is in fluid communication with the second port and not with the third port and a second position in which the first port is in fluid communication with the third port and not with the second port.

3-way inline air operated valve

A fluid flow control device includes a regulator for operating at high pressures and an integral bypass valve. The regulator and the bypass valve each include a control assembly that is movable between an open position and a closed position. The regulator and bypass valves are biased into the open positions and adapted to move into the closed positions when an operating pressure rises to above respective regulator and bypass set-point pressures. The bypass set-point pressure is lower than the regulator set-point pressure such that when the operating pressure rises above the bypass set-point pressure, the bypass valve automatically closes and allows the regulator to perform under normal operating conditions. So configured, the bypass valve is arranged to accommodate at least some of the fluid flow through the system until the operating pressure reaches the normal operating pressure, which is somewhere between the bypass and regulator set-point pressures.

Fluid regulator with integrated rapid pressurization bypass valve

Manual overrides for valves are disclosed herein. An example apparatus includes an actuator to move a stem of a valve. The actuator includes a housing defining a bore and a piston disposed in the bore. The example apparatus also includes a rod movably coupled to the housing to extend into the bore, and the piston is to be movable via the rod or a fluid to flow into the bore. The example apparatus also includes a lock to hold the rod in a first position on the housing where the rod is to disable a supply of the fluid to the bore.

Manual overrides for valves

A high pressure three-way control valve comprises a valve body defining first, second, and third ports disposed in selective fluid communication with each other via a control element. The control element is movable between a first seated position and a second seated position to selectively control the direction of fluid between the first and second port, or alternatively, between the first and third port. So configured, the control valve serves a function that conventionally requires two valves plumbed together.

3-way high-pressure air operated valve

Mounting assemblies for use with fluid control devices are disclosed. An example apparatus includes a bonnet to be coupled to a valve and a mounting assembly including a first side to be coupled to an actuator and a second side to be rotatably coupled at an end of the bonnet to enable a rotational position of the mounting assembly to change relative to the bonnet.

Mounting assemblies for use with fluid control devices

An example valve described herein includes a bonnet having a bonnet cavity defining a bonnet inner surface, a bonnet outer surface, and a first pressure sensing passageway extending between the bonnet outer surface and the bonnet cavity. A base is coaxially coupled to the bonnet and has a base outer surface, a base cavity that defines a base inner surface, a fluid inlet passageway extending between the base outer surface and the base cavity, a fluid outlet passageway extending between the base outer surface and the base cavity, and a second pressure sensing passageway extending between the base outer surface and the base cavity. A valve element within the base and bonnet cavities controls a fluid flow path through the fluid inlet passageway and the fluid outlet passageway.

Apparatus and methods to dispense fluid from a bank of containers and to refill same

An example dual check valve device described herein includes a housing and a first check valve in the housing. A second check valve is located in the housing adjacent the first check valve and in substantial axial alignment with the first check valve.

Dome-loaded pressure regulators are disclosed. An example pressure regulator includes a body having a pressure inlet and first and second pressure outlets and a first dome-loaded pressure regulating valve fluidly coupled to the pressure inlet, the first pressure outlet, and a first control pressure. The first dome-loaded pressure regulating valve includes a first piston having a transverse bore defining a fluid path through the first piston to fluidly couple the pressure inlet to the first pressure outlet and configured to engage a first valve seat and to respond to the first control pressure to control the flow of fluid between the pressure inlet and the first pressure outlet via the first valve seat. The example pressure regulator includes a second dome-loaded pressure regulating valve fluidly coupled to the pressure inlet, the second pressure outlet, and a second control pressure.

Dome-loaded pressure regulators

An example cascade system includes a manifold having a fluid outlet port to dispense fluid and a fluid valve engaged to the manifold. First and second fluid storage containers are coupled to the manifold. The fluid valve is configured to control a first fluid flow path between the second fluid storage container and the fluid outlet port.

A fluid dispensing system includes a manifold having a fluid outlet port to dispense fluid from a plurality of fluid supply containers. The system additionally includes a plurality of valves connected to the manifold for controlling the flow of fluid from the containers. The manifold and valves are configured such that all fluid flow connections are disposed within the manifold, thereby reducing and/or eliminating the amount of piping required external to the manifold. So configured, the valves include simple cartridge-type devices that are easily installed into and removed from the manifold.

Dome-loaded pressure regulators are disclosed. An example pressure regulator includes a dome-loaded pressure regulating valve fluidly coupled to a pressure inlet, a pressure outlet, and a control pressure. The pressure regulating valve includes a piston, having a transverse bore defining a fluid path through the piston to fluidly couple the pressure inlet to the pressure outlet configured to engage a valve seat and to respond to the control pressure to control the flow of fluid between the pressure inlet and the pressure outlet via the valve seat.

Growing community of inventors

Milaca, MN, United States of America

Todd William Larsen