Patents by Inventor David Henry Eber

David Henry Eber 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).

  • Air cooled centrifugal refrigeration machine with provision to prevent evaporator freezing
    Patent number: 4081971
    Abstract: An air cooled centrifugal refrigeration machine is shown having an automatic shut-off valve in the liquid line to prevent natural circulation of refrigerant at low outdoor ambient temperatures that otherwise would cause freezing of the water in the evaporator.
    Type: Grant
    Filed: September 17, 1976
    Date of Patent: April 4, 1978
    Assignee: The Trane Company
    Inventor: David Henry Eber