Patents by Inventor Tom Grayson

Tom Grayson 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: 5379596
    Abstract: A portable, hand-held, completely self-contained, solar energy device that uses only sunlight and solar energy to power a thermoelectric or mechanical chemical cooling and heating system for the use, storage or transportation, of substances requiring temperature tempering or a temperature controlled environment in low, high and medium temperature ranges in an insulated storage chest with an accessible storage cooling or heating chamber of usable practical volume, of at least one cubic foot, with a permanently attached adjustable solar energy collector array of 3.5 square feet for the medium temperature range and 7 square feet for the low and high temperature ranges, that can be carried and operated by the average adult, child and laymen between 60 degrees global north and south latitudes, annually.
    Type: Grant
    Filed: May 13, 1992
    Date of Patent: January 10, 1995
    Inventor: Tom Grayson