Patents by Inventor Paul F. Renuad

Paul F. Renuad 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).

  • Refrigeration monitor and alarm system
    Patent number: 4612775
    Abstract: A refrigerant monitor and alarm includes a sensor positioned to detect the level of liquid state refrigerant in the system and provide an electrical output signal therefrom, a digital display for displaying the refrigerant level, a circuit coupling the digital display to the sensor for actuating the digital display, and a heat reclaim system lockout circuit coupled to the sensor. In a preferred embodiment, the level display is a bar-graph LED-type display incorporated on a control panel also including a refrigerant level alarm and other parameter alarms.
    Type: Grant
    Filed: April 19, 1985
    Date of Patent: September 23, 1986
    Assignee: Kysor Industrial Corporation
    Inventors: Michael A. Branz, Paul F. Renuad