Patents by Inventor Horst Pissulla

Horst Pissulla 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).

  • Rotary potentiometer
    Patent number: 4908598
    Abstract: The cover of a casing of the potentiometer is formed with an opening which is adapted to be closed by another cover and through which the top surface of a resistor core is accessible. Trimming resistors are located on the top surface and are connected electrically to a resistor path applied on the bottom surface of the resistor core. This permits adjustments of the potentiometer to be made even when the assembly is completed.
    Type: Grant
    Filed: October 25, 1988
    Date of Patent: March 13, 1990
    Assignee: Wilhelm Ruf KG
    Inventors: Rita Burger, Horst Pissulla
  • Potentiometer having vibration damping means
    Patent number: 4894638
    Abstract: A potentiometer for attachment to objects undergoing strong vibrations, such as the engine block of an internal combustion engine has an outer housing which is secured to the object and an inner housing which is largely positioned inside the outer housing. The two housings are connected by at least one springy damping member, such as an O-ring made of rubber and, at the same time, they are largely uncoupled with respect to vibrations.
    Type: Grant
    Filed: April 29, 1988
    Date of Patent: January 16, 1990
    Assignee: Wilhelm Ruf Kg
    Inventors: Werner Flierl, Horst Pissulla