Patents by Inventor E. E. Linder

E. E. Linder 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).

  • Energy saving device for walk-in refrigerators and freezers
    Patent number: 6397612
    Abstract: An energy saving apparatus for use with a heat exchange system having a cooled chamber, a compressor, a condenser, an evaporator, an evaporator fan, and refrigerant within refrigerant carrying lines has an evaporator fan controller for monitoring operational status of the system (cooling or non-cooling) and setting an energy saving operational speed for the evaporator fan based on the operational status of the system (cooling or non-cooling) and a current sensor coupled to the evaporator fan controller for detecting the operational status of the system (cooling or non-cooling). If the system is detected as cooling, the evaporator fan controller directs the evaporator fan to operate at a high speed and if the system is detected as not cooling (non-cooling), the evaporator fan controller decreases the operational speed of the evaporator fan to a low speed, thereby decreasing evaporator fan produced heat, resulting in an overall decreased energy requirement for the heat exchange system.
    Type: Grant
    Filed: February 6, 2001
    Date of Patent: June 4, 2002
    Assignee: Energy Control Equipment
    Inventors: John H. Kernkamp, E. E. Linder, Ed Kersten