Patents by Inventor Runo Roy Oskar Ternehall

Runo Roy Oskar Ternehall 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).

  • Device for wear warning in a servo operated disc clutch
    Patent number: 4084671
    Abstract: A disc clutch servo mechanism cylinder has a signal bore extending from the cylinder working chamber to atmosphere. In normal operating state a pin seals this bore. The pin extends into the chamber and when the clutch is worn the piston will come close to the cylinder bottom and push the pin outwards. This movement causes the pin to open an air passage from the chamber to atmosphere, whereby an acoustic signal indicates clutch wear.
    Type: Grant
    Filed: September 14, 1976
    Date of Patent: April 18, 1978
    Assignee: AB Volvo
    Inventor: Runo Roy Oskar Ternehall
  • Hydrodynamic brake device for motor vehicles
    Patent number: 4061214
    Abstract: A hydrodynamic brake device for motor vehicles comprises a rotor which is rotatably journalled in a stator shell, the rotor being operably connected to the transmission of the vehicle. The stator shell has a brake fluid inlet and outlet, and a regulator valve is arranged which can be set for regulating the supply of brake fluid to the fluid inlet of the stator shell. A thermostat controls the regulator valve so as to decrease the degree of filling as the temperature of the fluid increases.
    Type: Grant
    Filed: September 16, 1976
    Date of Patent: December 6, 1977
    Assignee: AB Volvo
    Inventor: Runo Roy Oskar Ternehall