Patents by Inventor David S. Platt

David S. Platt 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).

  • Scale calibration/zeroing in data gathering system
    Patent number: 5086879
    Abstract: A data gathering system adapted to be installed within a checkout counter for determining information about products presented for purchase at the counter including the weight of such products comprises two support flanges within the checkout counter. The support flanges define a portion of an upper surface of the data gathering system and a scale supported by the flanges defines the remaining upper surface which comprises a weighing platter for the scale. A scale calibrating and zeroing system is incorporated into the support flanges to be accessible through the upper surface of the data gathering system such that the scale can be periodically zeroed and calibrated as necessary to maintain the accuracy of the scale without removal of the data gathering system from the counter.
    Type: Grant
    Filed: September 4, 1990
    Date of Patent: February 11, 1992
    Assignees: Spectra-Physics, Inc., Toledo Scale Corporation
    Inventors: David L. Latimer, Howard H. Nojiri, James F. Million, Steven R. Grimm, David S. Platt