Patents by Inventor Douglas Cullen

Douglas Cullen 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: 10668859
    Abstract: A commercial trailer camera interface for providing an apparatus and method for connecting video cameras and data buses from a trailer to the tow vehicle. The trailer camera interface generally includes a nose box, which affixes to the front of the trailer, a tail box which affixes inside the rear of the tow vehicle, and an umbilical cable which connects the nose box to the tail box. The nose box encodes the video signals, for example as differential signals, for transmission over the umbilical cable and the tail box decodes the received encoded signals to recover the video signals. The nose box and the tail box may each include a plurality of video camera connectors. The tail box may include a video handler to display or record or stream the video signals.
    Type: Grant
    Filed: February 22, 2018
    Date of Patent: June 2, 2020
    Assignee: VELVAC INCORPORATED
    Inventors: Mark M. Moeller, Larry Piekarski, David Wood, Mason Harwell, Douglas Cullen Chamber
  • Publication number: 20180244200
    Abstract: A commercial trailer camera interface for providing an apparatus and method for connecting video cameras and data buses from a trailer to the tow vehicle. The trailer camera interface generally includes a nose box, which affixes to the front of the trailer, a tail box which affixes inside the rear of the tow vehicle, and an umbilical cable which connects the nose box to the tail box. The nose box encodes the video signals, for example as differential signals, for transmission over the umbilical cable and the tail box decodes the received encoded signals to recover the video signals. The nose box and the tail box may each include a plurality of video camera connectors. The tail box may include a video handler to display or record or stream the video signals.
    Type: Application
    Filed: February 22, 2018
    Publication date: August 30, 2018
    Applicant: VELVAC INCORPORATED
    Inventors: Mark M. Moeller, Larry Piekarski, David Wood, Mason Harwell, Douglas Cullen Chamber
  • Publication number: 20050224667
    Abstract: A device 60 for fixing together first and second side-by-side beams of a kind having first and second spaced apart flanges connected by a web. The device 60 comprises a member 62 having first and second opposing ends 64, 66 and is configured to extend from a first flange to a second flange of the beams. The device further comprises at least one portion 68, 70 extending laterally of each of said first and second opposing ends with the at least one portion at the first opposing end being configured to be fixed to an outer surface of the first flange of the first beam and the at least one portion at the second opposing end being configured to be fixed to an outer surface of the second flange of the second beam.
    Type: Application
    Filed: February 18, 2005
    Publication date: October 13, 2005
    Inventors: Luke John Whale, Douglas Cullen
  • Publication number: 20020121474
    Abstract: A filter cartridge is made from an elongate, rectangularly shaped, pleated filter element that is secured at opposite ends thereof in a pair of end caps. The cartridge is removably mounted in a filter housing sealingly to surround an elongate, perforated, square-shaped element that is fixed in the housing to have one end of its central opening connected through a central opening in one of the cartridge end caps, and through an outlet opening in the housing with apparatus that is operable to draw fluid into the housing and through the pleated filter element to the outlet opening.
    Type: Application
    Filed: March 5, 2001
    Publication date: September 5, 2002
    Inventor: Douglas Cullen