Ross Operating Valve Company

Ross South America Ltda.

Robert N Winsand

Neil E Russell

Russell J Cameron

Charles A Weiler, Jr

José Carlos Bento

David W Haselden, Jr

Richard P Krape

Jr David W Haselden

An energy saver valve includes a first spool () and a second spool () slidably received in a passage () of a housing (). The first spool and the second spool are separate components. The energy saver valve also includes a first outlet port (), a second outlet port (), and a resilient member () located in a resilient member chamber () that biases the second spool towards the first spool. Fluid exits the first outlet port at a first pressure when the energy saver valve is in an initial position, and another passage () provides fluid communication between the fluid in the resilient member chamber and the first outlet port. The fluid exits the second outlet port at a second pressure when the energy saver valve is in an actuated position. The first pressure is less than the second pressure.

Two spool energy saver valve

A system for selectively controlling movement of a piston between first and second positions, the system comprising a controller selectively actuated to enable fluid communication between a device and a source of pressurized fluid, a control valve for enabling fluid communication between a control system and the source of pressurized fluid, a sensing system for identifying the first and second positions, a monitoring valve selectively actuated by the at least one sensing valve for exhausting the flow of pressurized fluid, wherein the monitoring actuator remains actuated until the control valve is deactuated, and a latching mechanism selectively capable of engaging the piston when a loss of pressurized fluid has been identified.

Inlet monitor and latch for a crust breaking system

Several embodiments are disclosed of an automatic shutoff valve apparatus for permitting removal, repair, or replacement of a control valve from a mounting base without deactivating a complete system. In addition, a redundancy arrangement is disclosed wherein the shutoff valve apparatus and at least two control valves are employed in parallel so that the device activated by the control valves can be maintained operative when one control valve malfunctions or is removed, repaired, or replaced.

Valve system and arrangement for on-line valve replacement

Growing community of inventors

Chicago, IL, United States of America

Robert N Winsand