Patents by Inventor Arnold Warren Johansen

Arnold Warren Johansen 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).

  • Disc drive shunting device
    Patent number: 6894879
    Abstract: An electrostatic discharge protection device can protect a head gimbal assembly circuit from electrostatic discharge. The device includes a housing and a shunt positioned within the housing. The shunt includes a pair of electrical contacts and the shunt has a first position in which the electrical contacts are in electrical communication with the circuit and a second position in which the electrical contacts are removed from electrical communication with the circuit. The shunt can be placed in its first position to protect the head gimbal assembly against electrostatic discharge and is moved into its second position to permit testing operations of the head gimbal assembly. The shunt is then returned to its first position.
    Type: Grant
    Filed: December 17, 2001
    Date of Patent: May 17, 2005
    Assignee: Seagate Technology LLC
    Inventors: Frank William Schadewald, Jr., Arnold Warren Johansen
  • Disc drive shunting device
    Publication number: 20020075610
    Abstract: An electrostatic discharge protection device can protect a head gimbal assembly circuit from electrostatic discharge. The device includes a housing and a shunt positioned within the housing. The shunt includes a pair of electrical contacts and the shunt has a first position in which the electrical contacts are in electrical communication with the circuit and a second position in which the electrical contacts are removed from electrical communication with the circuit. The shunt can be placed in its first position to protect the head gimbal assembly against electrostatic discharge and is moved into its second position to permit testing operations of the head gimbal assembly. The shunt is then returned to its first position.
    Type: Application
    Filed: December 17, 2001
    Publication date: June 20, 2002
    Inventors: Frank William Schadewald, Arnold Warren Johansen