Patents by Inventor David D. Barrett

David D. Barrett 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: 5024065
    Abstract: This invention is a method and apparatus for air conditioning small and confined spaces, particularly where silence of operations is important, and wherein the method involves drawing air through an ice containing chamber and passing it into the confined space desired to be cooled together with provisions for adequate drainage of melted ice and adjustments for varying the actual temperature produced. It includes specially designed radiating tubes for special effect on the cooling ability.
    Type: Grant
    Filed: March 13, 1986
    Date of Patent: June 18, 1991
    Inventor: David D. Barrett