Patents by Inventor Harry R. Nara

Harry R. Nara 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).

  • Tank closure assembly
    Patent number: 4228575
    Abstract: A tank closure assembly adapted to releasably couple tank sections formed by transversely splitting an integral bag-molded fiber-reinforced tank. The assembly includes external circumferential flanges secured to the tank sections adjacent their severed faces and in opposed relation to each other. An O-ring seal, disposed externally of the tank sections and between the flanges, is compressed into sealing engagement with surrounding surfaces, by tightening of a circumferential band encircling the flanges, to seal the tank sections at their plane of separation. A method of machining a tank to simultaneously form the split sections and suitable flange receiving grooves thereon is disclosed, as well as a method of pressure-testing the machined tank sections prior to assembly of the flanges and O-ring seal.
    Type: Grant
    Filed: November 27, 1978
    Date of Patent: October 21, 1980
    Assignee: Structural Fibers, Inc.
    Inventors: Arthur J. Wiltshire, Harry R. Nara, Edward T. Le Breton, Ward L. Bliley
  • Tank closure assembly
    Patent number: 4219125
    Abstract: A tank closure assembly adapted to releasably couple tank sections formed by transversely splitting an integral bag-molded fiber-reinforced tank. According to one aspect of the invention, the assembly includes external circumferential flanges secured to the tank sections adjacent their severed faces and in opposed relation to each other. An O-ring seal, disposed externally of the tank sections and between the flanges, is compressed into sealing engagement with surrounding surfaces, by tightening of a circumferential band encircling the flanges, to seal the tank sections at their plane of separation. According to another aspect of the invention, the assembly includes a unitary clamping band having hooked ends which engage grooves adjacent the severed faces of the tank sections and the clamping band retains a pair of O-rings which seal the tank at their plane of separation.
    Type: Grant
    Filed: December 7, 1978
    Date of Patent: August 26, 1980
    Assignee: Structural Fibers, Inc.
    Inventors: Arthur J. Wiltshire, Harry R. Nara, Edward T. LeBreton, Ward L. Bliley
  • Tank closure assembly
    Patent number: 4133442
    Abstract: A tank closure assembly adapted to releasably couple tank sections formed by transversely splitting an integral bag-molded fiber-reinforced tank. The assembly includes external circumferential flanges secured to the tank sections adjacent their severed faces and in opposed relation to each other. An O-ring seal, disposed externally of the tank sections and between the flanges, is compressed into sealing engagement with surrounding surfaces, by tightening of a circumferential band encircling the flanges, to seal the tank sections at their plane of separation. A method of machining a tank to simultaneously form the split sections and suitable flange receiving grooves thereon is disclosed, as well as a method of pressure-testing the machined tank sections prior to assembly of the flanges and O-ring seal.
    Type: Grant
    Filed: December 27, 1976
    Date of Patent: January 9, 1979
    Assignee: Structural Fibers, Inc.
    Inventors: Arthur J. Wiltshire, Harry R. Nara, Edward T. LeBreton, Ward L. Bliley