Patents by Inventor Edward M. Fernandes

Edward M. Fernandes 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).

  • Method of making captive O-ring face seal
    Patent number: 5564177
    Abstract: A fitting body is provided with a lip that protrudes radially from at least one of the side walls of the seal groove in the sealing face toward the other side wall to form an undercut whereby an annular seal is trapped axially behind the lip to prevent the annular seal from falling out of the groove. The lip is formed by forming the fitting body with a ledge that is integral with the fitting body and protrudes axially from the sealing face adjacent one of the side walls of the groove in the sealing face. The ledge is then flattened to form the lip and an annular seal such as an elastomeric O-ring seal is then inserted into the groove with the annular seal being mechanically trapped axially behind the lip to prevent the annular seal from falling out of the groove.
    Type: Grant
    Filed: June 5, 1995
    Date of Patent: October 15, 1996
    Assignee: Parker-Hannifin Corporation
    Inventors: Edward M. Fernandes, Hiralal V. Patel
  • Captive O-ring face seal
    Patent number: 5490680
    Abstract: A fitting body is provided with a lip that protrudes radially from at least one of the side walls of the seal groove in the sealing face toward the other side wall to form an undercut whereby an annular seal is trapped axially behind the lip to prevent the annular seal from falling out of the groove. The lip is formed by forming the fitting body with a ledge that is integral with the fitting body and protrudes axially from the sealing face adjacent one of the side walls of the groove in the sealing face. The ledge is then flattened to form the lip and an annular seal such as an elastomeric O-ring seal is then inserted into the groove with the annular seal being mechanically trapped axially behind the lip to prevent the annular seal from falling out of the groove.
    Type: Grant
    Filed: April 6, 1993
    Date of Patent: February 13, 1996
    Assignee: Parker-Hannifin Corporation
    Inventors: Hiralal V. Patel, Edward M. Fernandes