Patents by Inventor Richard P. Krape

Richard P. Krape has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Valve system and arrangement for on-line valve replacement
    Patent number: 4930401
    Abstract: 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.
    Type: Grant
    Filed: October 28, 1988
    Date of Patent: June 5, 1990
    Assignee: Ross Operating Valve Company
    Inventors: Russell J. Cameron, Richard P. Krape, Robert N. Winsand