Patents by Inventor John M. Oldham

John M. Oldham 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).

  • Low profile compact RF coaxial to planar transmission line interface
    Patent number: 8123556
    Abstract: A compact, low profile coaxial to printed wiring board interface includes an interface block and an adapter. The interface block has a stepped opening for receiving the adapter and a coaxial cable. The adapter includes an outer profile with a series of steps that align and mate with the stepped opening of the interface block. An inner insulator of the coaxial cable is positioned entirely within the interface block and lies substantially flush with a first outside surface of the interface block, an outer conductor of the coaxial cable is positioned at an approximate midpoint interface of the adapter, an outer insulator of the coaxial cable lies flush with an external surface of the adapter, and a portion of the adapter positioned outside the interface block comprises a low profile such that the coaxial cable can be positioned away from a perpendicular to the interface block.
    Type: Grant
    Filed: April 9, 2009
    Date of Patent: February 28, 2012
    Assignee: Raytheon Company
    Inventors: Roger C. Esplin, John M. Oldham
  • LOW PROFILE COMPACT RF COAXIAL TO PLANAR TRANSMISSION LINE INTERFACE
    Publication number: 20110183544
    Abstract: A compact, low profile coaxial to printed wiring board interface includes an interface block and an adapter. The interface block has a stepped opening for receiving the adapter and a coaxial cable. The adapter includes an outer profile with a series of steps that align and mate with the stepped opening of the interface block. An inner insulator of the coaxial cable is positioned entirely within the interface block and lies substantially flush with a first outside surface of the interface block, an outer conductor of the coaxial cable is positioned at an approximate midpoint interface of the adapter, an outer insulator of the coaxial cable lies flush with an external surface of the adapter, and a portion of the adapter positioned outside the interface block comprises a low profile such that the coaxial cable can be positioned away from a perpendicular to the interface block.
    Type: Application
    Filed: April 9, 2009
    Publication date: July 28, 2011
    Inventors: Roger C. Esplin, John M. Oldham