Patents by Inventor Michael D. Grassmuck

Michael D. Grassmuck 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).

  • Patent number: 7856770
    Abstract: A glass assembly for a refrigerated display case. In some embodiments, the glass assembly includes a first pane having a first edge, a second pane substantially parallel to the first pane having a second edge substantially aligned with the first edge, and a third pane substantially parallel with the first pane and the second pane. The third pane includes a third edge offset from the second edge and defines a step in the glass assembly.
    Type: Grant
    Filed: August 31, 2004
    Date of Patent: December 28, 2010
    Assignee: Hussmann Corporation
    Inventors: Michael D. Grassmuck, Garrick N. McFarland, John D. Withouse
  • Patent number: 7318321
    Abstract: A refrigerated display case including a case having rear and bottom walls that are coupled together to at least partially define a product display area adapted to receive a wheeled cart containing food product. The bottom wall includes a cart support surface elevated above the floor and adapted to support the wheeled cart within the product display area. The case includes an air passageway having a lower return flue located below the cart support surface. A refrigeration component is at least partially located in the air passageway to cool air directed to the product display area to maintain the products at the desired temperature. At least a portion of the cooled air in the product display area returns to the refrigeration component through the lower return flue.
    Type: Grant
    Filed: May 24, 2005
    Date of Patent: January 15, 2008
    Assignee: Hussmann Corporation
    Inventors: Michael D. Grassmuck, Martin J. Duffy, John D. Withouse, Dennis L. Dickerson, Aaron Hernandez
  • Patent number: 7240506
    Abstract: A refrigerated display case including a case that defines a product display area adapted to support and display food product to be visible from the front of the case. The case includes a canopy positioned above the product display area with at least one display panel. A refrigeration system supplies refrigerated air to the product display area and is adapted to maintain the food product at a desired temperature. A light source supported by the case projects light along a first path of illumination directed toward the product display area adapted to brighten the food product and projects light along a second path of illumination directed toward the display panel. At least a portion of the light along the second path of illumination passes through the display panel to be visible from the front of the display panel.
    Type: Grant
    Filed: April 29, 2005
    Date of Patent: July 10, 2007
    Assignee: Hussmann Corporation
    Inventors: Michael D. Grassmuck, Oswaldo Carrillo
  • Patent number: 5639149
    Abstract: A glass front merchandiser having a refrigerated cabinet with a product zone normally closed by a glass front panel having a hinging side margin, the glass front panel including an outer glass pane and a structural frame member secured adjacent to the peripheral edge thereof along its hinging side margin, a hinge directly connected to the structural frame member and being constructed and arranged for hinging movement of the glass front panel on the refrigerated cabinet to open up the product zone, the outer peripheral edge of the structural frame member overhanging the hinge in a closed sealing position of the glass front panel with the merchandiser cabinet, and other seals constructed and arranged along the side margins of the glass front panel.
    Type: Grant
    Filed: May 4, 1993
    Date of Patent: June 17, 1997
    Assignee: Hussmann Corporation
    Inventor: Michael D. Grassmuck
  • Patent number: 4990749
    Abstract: This invention is an apparatus for controlling food temperatures in a food warming cabinet having at least one food holding zone. The apparatus includes a first sensor for sensing a temperature representative of the temperature of the food, a heater, a second sensor for sensing a temperature representative of an operating condition of the apparatus, and a control circuit connected to receive sensed input signals from the first and second sensors, and being constructed and arranged for controlling the operation of the heater in response to the sensed input signals and for selecting a set point value forming an ideal temperature condition for the food.
    Type: Grant
    Filed: May 5, 1989
    Date of Patent: February 5, 1991
    Assignee: Hussmann Corporation
    Inventors: Michael E. Devine, Michael D. Grassmuck, Mason E. Laster, Jr., Nai H. Mak