Patents by Inventor Darrell W. Miller

Darrell W. Miller 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: 11784416
    Abstract: An apparatus includes a first layer having an RF lossy material, a second layer having the RF lossy material, and a plurality of conductive or resistive pads arranged in a planar array between the first layer and the second layer. The apparatus may also include a plurality of thermal vias, where each thermal via may correspond to one of the pads, may extend through at least the first layer, and may be formed of a thermally-conductive material. Dimensions of each pad may be selected based on a desired resonant frequency band, and the desired resonant frequency band may be associated with RF energy transmitted by at least one RF source in proximity to the apparatus.
    Type: Grant
    Filed: January 6, 2020
    Date of Patent: October 10, 2023
    Assignee: Raytheon Company
    Inventors: Jeremy J. Holdstock, James E. Foreman, David R. Gorman, Darrell W. Miller
  • Publication number: 20210210862
    Abstract: An apparatus includes a first layer having an RF lossy material, a second layer having the RF lossy material, and a plurality of conductive or resistive pads arranged in a planar array between the first layer and the second layer. The apparatus may also include a plurality of thermal vias, where each thermal via may correspond to one of the pads, may extend through at least the first layer, and may be formed of a thermally-conductive material. Dimensions of each pad may be selected based on a desired resonant frequency band, and the desired resonant frequency band may be associated with RF energy transmitted by at least one RF source in proximity to the apparatus.
    Type: Application
    Filed: January 6, 2020
    Publication date: July 8, 2021
    Inventors: Jeremy J. Holdstock, James E. Foreman, David R. Gorman, Darrell W. Miller
  • Patent number: 8497812
    Abstract: A composite radome structure includes a first structural laminate layer having an outer radome surface, a second structural laminate layer comprising an inner radome surface, and an antenna having a screen, wherein the screen is inserted between the first and the second structural laminate layers.
    Type: Grant
    Filed: January 30, 2009
    Date of Patent: July 30, 2013
    Assignee: Raytheon Company
    Inventors: William P. Harokopus, Darrell W. Miller
  • Patent number: 8232928
    Abstract: According to one embodiment, an antenna array includes a plurality of first antenna elements having a first polarity and a plurality of second antenna elements having a second polarity. A feed circuit couples the plurality of first antenna elements and the plurality of second antenna elements to an antenna drive circuit. The feed circuit is configured on a plurality of columns extending in a direction that is oblique to the plurality of first antenna elements and the plurality of second antenna elements.
    Type: Grant
    Filed: June 22, 2009
    Date of Patent: July 31, 2012
    Assignee: Raytheon Company
    Inventors: Brian W. Johansen, James M. Irion, II, Darrell W. Miller
  • Publication number: 20100194661
    Abstract: A composite radome structure includes a first structural laminate layer having an outer radome surface, a second structural laminate layer comprising an inner radome surface, and an antenna having a screen, wherein the screen is inserted between the first and the second structural laminate layers.
    Type: Application
    Filed: January 30, 2009
    Publication date: August 5, 2010
    Applicant: Raytheon Company
    Inventors: William P. Harokopus, Darrell W. Miller
  • Publication number: 20090315802
    Abstract: According to one embodiment, an antenna array includes a plurality of first antenna elements having a first polarity and a plurality of second antenna elements having a second polarity. A feed circuit couples the plurality of first antenna elements and the plurality of second antenna elements to an antenna drive circuit. The feed circuit is configured on a plurality of columns extending in a direction that is oblique to the plurality of first antenna elements and the plurality of second antenna elements.
    Type: Application
    Filed: June 22, 2009
    Publication date: December 24, 2009
    Applicant: Raytheon Company
    Inventors: Brian W. Johansen, James M. Irion, II, Darrell W. Miller
  • Patent number: 6111550
    Abstract: An endfire monopole array in a low cross section, low profile package with the area used being vertical or tube-like. The array is aerodynamically shaped on one or more sides in order to minimize wind resistance. The antenna array includes an RF transparent housing having a tapered end portion which is substantially "V" shaped, a first plurality of parallel endfire monopole antenna elements secured to a stripline or microstrip within the housing, each antenna element thereof extending in a first direction and a second plurality of parallel endfire monopole antenna elements secured to a stripline or microstrip within the housing, each antenna elements of the second plurality extending in the first direction, the first plurality being spaced from the second plurality in the first direction. An energy feeding structure is coupled to the antenna elements, with a dielectric layer disposed over that structure and a ground plane disposed over the dielectric layer.
    Type: Grant
    Filed: September 26, 1997
    Date of Patent: August 29, 2000
    Assignee: Texas Instruments Incorporated
    Inventors: Darrell W. Miller, Joseph E. Wheeler, III, Paul C. Gilliland, Leslie D. Clements
  • Patent number: 5056203
    Abstract: An abrading and cutting tool assembly particularly adapted for use in auto body repair is disclosed. The assembly includes a tool body of a rectangular, disc, or cylindrical shape, and means on the tool body for connecting it to a drive assembly such as a reciprocating or revolving sander assembly. A plurality of successive spaced cutting and abrading blades, all of which have a toothed, saw-like cutting edge, are secured at an acute angle to the surface of the tool body. The ideal angle the blades make with the surface of the tool body is 45 degrees, and all of the blades are inclined and facing the same direction for abrading and cutting.
    Type: Grant
    Filed: April 5, 1991
    Date of Patent: October 15, 1991
    Inventor: Darrell W. Miller
  • Patent number: 4217711
    Abstract: An advertising display unit for use with a shopping cart, said display unit having a flat base member mountable on the shopping cart, a cover member releasably securable to the base member, the base member and the cover member being configured to define a slot between them. The slot can be divided into a plurality of pockets to hold advertising material, each of the pockets having a window to display the advertising material.
    Type: Grant
    Filed: February 9, 1978
    Date of Patent: August 19, 1980
    Assignee: Advocart, Inc.
    Inventors: Howard L. Spresser, Darrell W. Miller