Patents by Inventor Frank William Schadewald, Jr.

Frank William Schadewald, Jr. 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).

  • 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
  • Patent number: 6507467
    Abstract: An apparatus for protecting a magnetoresistive head from electrostatic discharge. The apparatus includes an actuator assembly including the magnetoresistive head, and a connector board including a plurality of conductive traces in electrical contact with the magnetoresistive head. The connector board defines a plurality of openings therein, each of the openings having sides surfaces in electrical contact with one of the traces. The apparatus further includes a conductive shunting member including a plurality of protruding members adapted to be inserted into the openings and contact the side surfaces of the openings. The shunting member, when so inserted into the openings shorts the traces to provide protection of the magnetoresistive head from electrostatic discharge.
    Type: Grant
    Filed: August 17, 2000
    Date of Patent: January 14, 2003
    Assignee: Seagate Technology LLC
    Inventors: Frank William Schadewald, Jr., Mark James Schaenzer, Scott Michael Franzen