Patents by Inventor Assar Natanael Svensson

Assar Natanael Svensson 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 producing a paving mass and a paving mass produced by the method
    Patent number: 4086291
    Abstract: Producing a paving mass by heating macadam stone material, mixing rubber vulcanizate with the heated macadam for a time sufficient for the rubber vulcanizate to adhere to the heated macadam stone material, and thereafter mixing in filling material and a binding agent.
    Type: Grant
    Filed: April 14, 1976
    Date of Patent: April 25, 1978
    Assignee: Skega AB
    Inventor: Assar Natanael Svensson
  • Device for sealing between preferably movable parts
    Patent number: 3930657
    Abstract: A device for producing a seal between movable and/or stationary parts, such as a piston and a cylinder particularly under conditions of high fluid pressures, comprises a sealing ring having an O-ring configuration and fabricated of a material such as rubber. A support ring is disposed on at least one side of the sealing ring in coaxial relation thereto, the support ring being fabricated of a thermoplastic polymer material having a hardness greater than the sealing ring and being formed with a concavely curved contact surface facing and engaging the sealing ring. A guide ring having an L-shaped cross section is disposed outside of the support ring relative to the sealing ring in coaxial relation to the sealing and support rings, and consists of a polymer material having a hardness greater than the thermoplastic polymer of the support ring.
    Type: Grant
    Filed: July 31, 1973
    Date of Patent: January 6, 1976
    Assignee: Skega Aktiebolag
    Inventors: Assar Natanael Svensson, Sture Valter Persson