Patents by Inventor David A. Wurangian

David A. Wurangian 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).

  • Guided gate valve
    Patent number: 5836569
    Abstract: A guided gate valve having a valve body with an interior surface defining a passage having an upstream opening an downstream opening. Upstream and downstream valve seats are mounted within the passage. A guide rail is mounted to the valve body between the valve seats to guide a pair of gates between an open position and a closed position.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: November 17, 1998
    Assignee: Flowserve Management Company
    Inventor: David A. Wurangian
  • Guided gate valve
    Patent number: 5820106
    Abstract: A guided gate valve having a valve body with an interior surface defining a passage having an upstream opening an downstream opening. Upstream and downstream valve seats are mounted within the passage. A guide rail is mounted to the valve body between the valve seats to guide a pair of gates between an open position and a closed position.
    Type: Grant
    Filed: August 8, 1997
    Date of Patent: October 13, 1998
    Assignee: BW/IP International, Inc.
    Inventor: David A. Wurangian
  • Guided gate valve
    Patent number: 5704594
    Abstract: A guided gate valve having a valve body with an interior surface defining a passage having an upstream opening an downstream opening. Upstream and downstream valve seats are mounted within the passage. A guide rail is mounted to the valve body between the valve seats to guide a pair of gates between an open position and a closed position.
    Type: Grant
    Filed: April 11, 1995
    Date of Patent: January 6, 1998
    Assignee: BW/IP Internatinal, Inc.
    Inventor: David A. Wurangian