Patents by Inventor Robert T. Dall

Robert T. Dall 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: 9791129
    Abstract: Disclosed is a hybrid lamp assembly (44) which includes a substantially parabolic primary reflector (12) having an open end (20) and a circumferential mounting member (54) extending outwardly from the open end (20) of the primary reflector (12). A primary light source (14) is operably assembled with the parabolic reflector (12). A secondary light source (46), comprising a plurality of LED lamps (48) and a plurality of substantially parabolic reflectors (50) associated with the plurality of LED lamps (48) and configured to project secondary light beams, is positioned circumferentially around the open end (20). The LED lamps (48) each are mounted to project light directed by the secondary reflector (50) with which it is associated. Upper and lower reflectors (50a, 50b) project light beams substantially parallel to the beam of the primary light source (14) and lateral reflectors (50c-j) are angled inwardly in a horizontal plane to project light beams that cross the beam of the primary light source (14).
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: October 17, 2017
    Assignee: Lightforce Australia Pty Ltd.
    Inventors: Raymond L. Dennis, Robert T. Dall
  • Publication number: 20160003444
    Abstract: Disclosed is a hybrid lamp assembly (44) which includes a substantially parabolic primary reflector (12) having an open end (20) and a circumferential mounting member (54) extending outwardly from the open end (20) of the primary reflector (12). A primary light source (14) is operably assembled with the parabolic reflector (12). A secondary light source (46), comprising a plurality of LED lamps (48) and a plurality of substantially parabolic reflectors (50) associated with the plurality of LED lamps (48) and configured to project secondary light beams, is positioned circumferentially around the open end (20). The LED lamps (48) each are mounted to project light directed by the secondary reflector (50) with which it is associated. Upper and lower reflectors (50a, 50b) project light beams substantially parallel to the beam of the primary light source (14) and lateral reflectors (50c-j) are angled inwardly in a horizontal plane to project light beams that cross the beam of the primary light source (14).
    Type: Application
    Filed: September 17, 2015
    Publication date: January 7, 2016
    Inventors: Raymond L. Dennis, Robert T. Dall
  • Patent number: D780350
    Type: Grant
    Filed: September 17, 2015
    Date of Patent: February 28, 2017
    Assignee: Lightforce Australia Pty Ltd.
    Inventors: Raymond L. Dennis, Robert T. Dall
  • Patent number: D799079
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 3, 2017
    Assignee: Lightforce Australia Pty Ltd.
    Inventors: Raymond L. Dennis, Robert T. Dall
  • Patent number: D799080
    Type: Grant
    Filed: July 25, 2016
    Date of Patent: October 3, 2017
    Assignee: Lightforce Australia Pty Ltd.
    Inventors: Raymond L. Dennis, Robert T. Dall
  • Patent number: D805225
    Type: Grant
    Filed: October 6, 2016
    Date of Patent: December 12, 2017
    Assignee: Lightforce Australia Pty Ltd.
    Inventors: Raymond L. Dennis, Robert T. Dall
  • Patent number: D851297
    Type: Grant
    Filed: September 14, 2017
    Date of Patent: June 11, 2019
    Assignee: Lightforce Australia Pty Ltd.
    Inventors: Raymond L. Dennis, Robert T. Dall
  • Patent number: D867639
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: November 19, 2019
    Assignee: Lightforce Australia Pty Ltd.
    Inventors: Raymond L. Dennis, Robert T. Dall
  • Patent number: D882836
    Type: Grant
    Filed: January 31, 2019
    Date of Patent: April 28, 2020
    Assignee: Lightforce Australia Pty Ltd.
    Inventors: Raymond L. Dennis, Robert T. Dall
  • Patent number: D884957
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: May 19, 2020
    Assignee: Lightforce Australia Pty Ltd.
    Inventors: Raymond L. Dennis, Robert T. Dall
  • Patent number: D885645
    Type: Grant
    Filed: July 11, 2018
    Date of Patent: May 26, 2020
    Assignee: Lightforce Australia Pty Ltd.
    Inventors: Raymond L. Dennis, Robert T. Dall