Patents by Inventor Gregory J. Markert

Gregory J. Markert 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).

  • Optic level sensing system for use in a refrigerator
    Patent number: 6351958
    Abstract: A system for protecting optical elements from moisture and/or ice build up when used in freezing environment, such as a freezer compartment of a refrigerator. The system includes a hood or sleeve which can be assembled to an optical element such as a light emitting or receiving elements used in a freezer compartment. The sleeve acts to trap air about the optic element such that warm humid air does not readily move into contact with the optic element. Moreover, the warm, humid air that does flow toward the optic element may be cooled by the sleeve such that moisture condenses out of the air and onto the sleeve. A heater may be provided adjacent the sleeve for heating the sleeve if the optic element is impaired due to ice or moisture build up.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: March 5, 2002
    Assignee: Whirlpool Corporation
    Inventors: Jim J Pastryk, Donald E. Janke, Mark H. Nelson, Gregory J. Markert
  • Refrigerator having an ice maker and a control system therefor
    Patent number: 6314745
    Abstract: The present invention is directed toward a control system for an ice making system. The ice making system includes an ice maker, and an ice storage bin for receiving ice pieces formed by the ice maker. The control system controls the ice maker and includes optic elements for emitting and receiving a beam of light directed across the upper portion of the bin. The control system senses when the ice maker is ready to harvest ice pieces and then directs a beam of light or light signal from a first side of the ice storage bin, across the bin toward a second side of the ice storage bin. The control system senses for the light signal at the second side of the ice storage bin and if ice pieces block the path of the light signal, the control system prevents ice harvesting from the ice maker. The optic elements of the control system include a light emitting element and a light receiving element.
    Type: Grant
    Filed: January 12, 2000
    Date of Patent: November 13, 2001
    Assignee: Whirlpool Corporation
    Inventors: Donald E. Janke, Gregory J. Markert, Larry J. Manson, Husein Allgayer, Jim J Pastryk, Mark H Nelson
  • Method for energy efficient control of a dryer of clothes
    Patent number: 6199300
    Abstract: A method and apparatus for controlling the heat input of a dryer where the initial heat input to a clothes load is set at full power until a first predetermined temperature or time condition occurs. The heat input of the dryer is then reduced to in order to reduce power consumption while effectively removing moisture from the clothes load. When the moisture content of the clothes load falls below a predetermined amount, full heat input is once again applied to remove remaining moisture in the clothes load.
    Type: Grant
    Filed: March 1, 2000
    Date of Patent: March 13, 2001
    Assignee: Whirlpool Corporation
    Inventors: Timothy E. Heater, Shawn Richard Oltz, Gregory J. Markert, Mark F. Kendall