Patents by Inventor Vinay K. Nagpal

Vinay K. Nagpal 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).

  • Surge relief valve
    Patent number: 5226444
    Abstract: A surge relief valve suitable for high pressure application, for example in a crude oil pumped pipeline. The valve has a plug movable to expose different areas of an energy-absorbing cage trim to fluid flow. The plug position is controlled by a control device proportionately responsive to changes in upstream fluid pressure. The valve requires no external power for its actuation.
    Type: Grant
    Filed: October 16, 1992
    Date of Patent: July 13, 1993
    Assignee: Control Components Inc.
    Inventors: Vinay K. Nagpal, Curtis G. Sterud, Laurence R. Stratton