Patents by Inventor Warren J. Jochem

Warren J. Jochem 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).

  • Medical capsule device actuated by radio-frequency (RF) signal
    Patent number: 5170801
    Abstract: A medical capsule device for releasing a substance at a defined location in the gastrointestinal tract. The device has a capsule body defining one or more apertures in the circumferential wall thereof and a sleeve valve rotatably positioned therein having one or more corresponding apertures in the circumferential wall thereof. The sleeve valve comprises a coil and electrically connected heatable resistor which are operatively associated with an actuator member formed of a shape memory alloy responsive to heat and which will move from a non-heated first shape to a heated second shape. Actuator stop means are provided in the capsule body for being engaged by the actuator member during movement from the non-heated first shape to the heated second shape so that the actuator member movement will serve to rotate the sleeve valve to an open position.
    Type: Grant
    Filed: October 2, 1990
    Date of Patent: December 15, 1992
    Assignee: Glaxo Inc.
    Inventors: Robert A. Casper, Michael L. McCartney, Warren J. Jochem, Alan F. Parr
  • Medical capsule device actuated by radio-frequency (RF) signal
    Patent number: 5167626
    Abstract: A medical capsule device for releasing a substance at a defined location in the gastrointestinal tract. The device has a capsule body defining one or more apertures in the circumferential wall thereof and a sleeve valve rotatably positioned therein having one or more corresponding apertures in the circumferential wall thereof. The sleeve valve comprises a coil and electrically connected heatable resistor which are operatively associated with an actuator member formed of a shape memory alloy responsive to heat and which will move from a non-heated first shape to a heated second shape. Actuator stop means are provided in the capsule body for being engaged by the actuator member during movement from the non-heated first shape to the heated second shape so that the actuator member movement will serve to rotate the sleeve valve to an open position.
    Type: Grant
    Filed: January 27, 1992
    Date of Patent: December 1, 1992
    Assignee: Glaxo Inc.
    Inventors: Robert A. Casper, Michael L. McCartney, Warren J. Jochem, Alan F. Parr