Patents by Inventor David Dewing

David Dewing 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: 10204159
    Abstract: An apparatus for use with a commercial vehicle comprises a media recorder configured to receive video from one or more cameras. The media recorder comprises a memory configured to store a loop of the video as a circular buffer having a predetermined duration. A transceiver is communicatively coupled to the media recorder and configured to receive a video request command generated at a central office. An event detector is configured to communicate with a vehicle computer and detect predetermined events occurring during vehicle operation. The media recorder is configured to retrieve a portion of the loop of video stored in the memory and the transceiver is configured to transmit the portion of the loop of video to the central office in response to the video request command.
    Type: Grant
    Filed: August 21, 2015
    Date of Patent: February 12, 2019
    Assignee: Trimble Navigation Limited
    Inventors: James W. Angel, David Dew, Michael D. Nalepka
  • Publication number: 20170054948
    Abstract: An apparatus for use with a commercial vehicle comprises a media recorder configured to receive video from one or more cameras. The media recorder comprises a memory configured to store a loop of the video as a circular buffer having a predetermined duration. A transceiver is communicatively coupled to the media recorder and configured to receive a video request command generated at a central office. An event detector is configured to communicate with a vehicle computer and detect predetermined events occurring during vehicle operation. The media recorder is configured to retrieve a portion of the loop of video stored in the memory and the transceiver is configured to transmit the portion of the loop of video to the central office in response to the video request command.
    Type: Application
    Filed: August 21, 2015
    Publication date: February 23, 2017
    Inventors: James W. Angel, David Dew, Michael D. Nalepka
  • Patent number: 9243414
    Abstract: The swimming pool cleaner of the invention is a suction device comprising a rectangular housing, at least four wheels enabling the device to be manually rolled along the swimming pool bottom with the long sides perpendicular to the direction of motion, and two cylindrical rotary brushes adjacent and parallel to opposing long sides of the housing and driven by rotation of the device wheels. Tree leaves and other debris are effectively captured due to a downward sweeping action produced by rotation of the cylindrical rotary brush on the leading edge as the cleaning device, connected to a suction means, is rolled back and forth over the swimming pool bottom by an operator pulling and pushing on a pole attached to the top of the housing. The performance of the device is enhanced via fenders that wrap around the tops of the rotary brushes, and inclusion of various housing bottom features.
    Type: Grant
    Filed: May 29, 2009
    Date of Patent: January 26, 2016
    Inventor: David Dewing
  • Patent number: 8268038
    Abstract: A method of conducting a bioleaching process including the steps of forming a main heap, culturing at least one microorganism which exhibits bioleaching activity in a predetermined temperature range, monitoring the temperature in the main heap, which is a result, at least, of microbial leaching activity and inoculating the heap with the cultured microorganism at least before the temperature reaches the predetermined range.
    Type: Grant
    Filed: October 22, 2008
    Date of Patent: September 18, 2012
    Assignee: BHP Billiton SA Limited
    Inventors: David Dew, Jaco Willem Steyn, Susanna Helena Minnaar
  • Publication number: 20120144605
    Abstract: The pool cleaning device of the invention has a housing bottom with an elliptically-beveled suction hole inlet and optional topographical features that facilitate smooth flow of water to and into the suction hole so as to improve capture of tree leaves and other debris. The optional topographical features include a sloped bottom along the leading edge to minimize the possibility of debris catching on the outer edge of the housing bottom, a bottom suction cavity with or without partitions designed to direct debris toward the elliptically-beveled suction hole inlet, and a fender that partially wraps around a cylindrical rotary brush along the leading edge of the housing.
    Type: Application
    Filed: December 22, 2011
    Publication date: June 14, 2012
    Inventor: David Dewings
  • Publication number: 20110023662
    Abstract: A method of conducting a bioleaching process including the steps of forming a main heap, culturing at least one microorganism which exhibits bioleaching activity in a predetermined temperature range, monitoring the temperature in the main heap, which is a result, at least, of microbial leaching activity and inoculating the heap with the cultured microorganism at least before the temperature reaches the predetermined range.
    Type: Application
    Filed: October 22, 2008
    Publication date: February 3, 2011
    Inventors: David Dew, Jaco Willem Steyn, Susanna Helena Minnaar
  • Publication number: 20100299863
    Abstract: The swimming pool cleaner of the invention is a suction device comprising a rectangular housing, at least four wheels enabling the device to be manually rolled along the swimming pool bottom with the long sides perpendicular to the direction of motion, and two cylindrical rotary brushes adjacent and parallel to opposing long sides of the housing and driven by rotation of the device wheels. Tree leaves and other debris are effectively captured due to a downward sweeping action produced by rotation of the cylindrical rotary brush on the leading edge as the cleaning device, connected to a suction means, is rolled back and forth over the swimming pool bottom by an operator pulling and pushing on a pole attached to the top of the housing. The performance of the device is enhanced via fenders that wrap around the tops of the rotary brushes, and inclusion of various housing bottom features.
    Type: Application
    Filed: May 29, 2009
    Publication date: December 2, 2010
    Inventor: David Dewing
  • Patent number: 4215465
    Abstract: An improved method for producing a vanadium-gallium superconductor wire having aluminum as a component thereof is disclosed, said wire being encased in a gallium bearing copper sheath. The superconductors disclosed herein may be fabricated under normal atmospheres and room temperatures by forming a tubular shaped billet having a core composed of an alloy of vanadium and aluminum and an outer sheath composed of an alloy of copper, gallium and aluminum. Thereafter the entire billet is swage reduced to form a wire therefrom and heat treated to form a layer of V.sub.3 Ga in the interior of the wire.
    Type: Grant
    Filed: December 6, 1978
    Date of Patent: August 5, 1980
    Assignee: The United States of America as represented by the United States Department of Energy
    Inventor: David Dew-Hughes