Patents by Inventor Marcus St. E. Cardew

Marcus St. E. Cardew 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).

  • Electrical connector
    Patent number: 5334032
    Abstract: An electrical connector for use in electrically conductive aqueous mixtures, solution or suspensions such as seawater, sewage, electrolytes and so forth has one or more contact pins 3 each having a contact area 4. The contact areas 4 are electrically isolated from the electrically conductive environment by way of a dielectric seal carrier 6 which may be moved away from the contact areas 4 as the socket and the plug of the connector are brought into engagement.
    Type: Grant
    Filed: May 11, 1993
    Date of Patent: August 2, 1994
    Assignee: Swift 943 Ltd T/A Systems Technologies
    Inventors: Fred D. Myers, Marcus St. E. Cardew
  • Information scanner providing two separate digital images of a written text
    Patent number: 5247170
    Abstract: An information scanning apparatus for scanning and marking parts of a written text comprises two viewing elements (14,16) for forwarding information concerning scanned text to a linescan camera (42) so as to provide two physically displaced digital images of the relevant parts of the text. A highlighter pen (34) located adjacent the viewing elements (14,16) marks the scanned text as well as providing control feedback to the scanning operation such that the apparatus can deal with variations in speed, text quality and attitude of the scanning head 10.
    Type: Grant
    Filed: January 2, 1992
    Date of Patent: September 21, 1993
    Assignee: Swift 943 LTD T/A System Technologies
    Inventor: Marcus St. E. Cardew