Patents by Inventor T. Gus McDonald

T. Gus McDonald 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: 9479089
    Abstract: The present invention relates to an energy harvester device comprising an elongate resonator beam comprising a piezoelectric material, the resonator beam extending between first and second ends; a base connected to the resonator beam at the first end with the second end being freely extending from the base as a cantilever; a mass attached to the second end of the resonator beam; a package surrounding at least a portion of the second end of the resonator beam; and a stopper connected to the mass and/or the second end of the resonator beam, where the stopper is configured to prevent contact between the second end of the resonator beam and the package. Also disclosed is a system, a method of powering an electrically powered apparatus, and methods of producing an anergy harvester device.
    Type: Grant
    Filed: December 31, 2013
    Date of Patent: October 25, 2016
    Assignee: Microgen Systems, Inc.
    Inventors: Robert G. Andosca, T. Gus McDonald, David Trauernicht, Kathleen M. Vaeth
  • Publication number: 20150188458
    Abstract: The present invention relates to an energy harvester device comprising an elongate resonator beam comprising a piezoelectric material, the resonator beam extending between first and second ends; a base connected to the resonator beam at the first end with the second end being freely extending from the base as a cantilever; a mass attached to the second end of the resonator beam; a package surrounding at least a portion of the second end of the resonator beam; and a stopper connected to the mass and/or the second end of the resonator beam, where the stopper is configured to prevent contact between the second end of the resonator beam and the package. Also disclosed is a system, a method of powering an electrically powered apparatus, and methods of producing an anergy harvester device.
    Type: Application
    Filed: December 31, 2013
    Publication date: July 2, 2015
    Applicant: MicroGen Systems, Inc.
    Inventors: Robert G. Andosca, T. Gus McDonald, David Trauernicht, Kathleen M. Vaeth
  • Patent number: 5345521
    Abstract: An optical switching device with switch elements (224) similar to digital micromirror devices (DMD). The switching element (224) resides in a trench (216) between two elevated areas on the substrate (214a, 214b). Sending and receiving fibers (218a, 218b) face each other across the trench (216) with the switch element (224) between them. When the switch is ON, light travels through lenses (220a, 220b) in the trench (216) from one fiber (218b) to the other (218a). When the switch is flipped OFF, the element (224) is activated and blocks the light from the sending fiber (218b) by reflecting or absorbing the light from the sending fiber (218b). The switch is activated and possibly deactivated by addressing electrodes (226a, 226b) under the element (224), which deflects through an air gap towards the activated electrode (226b). For better deflection angles the posts can be arranged closer to one end of the element than the other. An alternate hinge architecture is also provided.
    Type: Grant
    Filed: July 12, 1993
    Date of Patent: September 6, 1994
    Assignee: Texas Instrument Incorporated
    Inventors: T. Gus McDonald, R. Mark Boysel
  • Patent number: 5155778
    Abstract: A structure for optical interconnection is disclosed along with methods of manufacture and operation. In one embodiment, the structure consists of optical fibers connected to an array of microlenses, either through integrated waveguides or not, that direct light onto a mirror formed in a substrate, which reflects light to a spatial light modulator. The spatial light modulator in turn reflects the light back to another mirror, which reflects the light through another microlens array, through integrated waveguides or not, and out another optical fiber. The structure is manufactured by forming the mirrors out of the substrate, forming waveguides if desired, forming troughs for the fibers and the microlenses, attaching external pieces such as the fibers, the lenses, and the spatial light modulator package, and packaging the device to maintain alignment.
    Type: Grant
    Filed: June 28, 1991
    Date of Patent: October 13, 1992
    Assignee: Texas Instruments Incorporated
    Inventors: Gregory A. Magel, T. Gus McDonald
  • Patent number: 5148506
    Abstract: There is disclosed a micro-mechanical switch mounted on a waveguide structure that can be utilized as a switching device in optical networks. The device comprises an individually deflectable element suspended over a gap in a waveguide. The individually deflectable element has attached to its underside a vertical metal shutter which can be raised or lowered by the movement of the element. The raising or lowering of the shutter is used to control light propagating through the waveguide.
    Type: Grant
    Filed: December 10, 1991
    Date of Patent: September 15, 1992
    Assignee: Texas Instruments Incorporated
    Inventor: T. Gus McDonald