Patents by Inventor George E. Ehlert

George E. Ehlert 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).

  • Economical house air cooling arrangement
    Patent number: 4874038
    Abstract: An economical air cooling and dehumidifying arrangement for a house wherein a conventional window mountable air cooling and dehumidifying unit cool air discharge opening is connected directly to the air return system of a conventional house forced hot air heating system near the furnace, so the furnace blower can be used to transfer air to the house through the furnace air delivery system.
    Type: Grant
    Filed: February 14, 1989
    Date of Patent: October 17, 1989
    Inventor: George E. Ehlert