Patents by Inventor Sean C. Keeping

Sean C. Keeping 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).

  • Chart recorder having review means
    Patent number: 5576740
    Abstract: A chart recorder with the facility to automatically review recorded data on chart paper. This review feature is high speed and accurate, and is provided by a series of one way drive mechanisms.These mechanisms comprise of various spools, rollers and gears. The chart paper is transferred from spool to spool.A removable cassette houses these mechanisms. The cassette is juxtapositioned with a floating recording station. The mutual abutment of the cassette with the recording station ensures that the required tolerances between the chart paper and the pen head are achieved.
    Type: Grant
    Filed: May 19, 1994
    Date of Patent: November 19, 1996
    Inventors: Sean C. Keeping, John C. Emmerson, David J. Claydon