Patents by Inventor Donald Mark Zimmerman

Donald Mark Zimmerman 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: 6383068
    Abstract: An apparatus and method for portioning food items. The inventive apparatus preferably comprises: a carrier structure having a cavity provided therein for receiving a first portion of a food item; a holding device for imparting a force to the food item sufficient to hold the first portion of the food item in the cavity; and a saw or knife having a blade receivable between the carrier structure and the holding structure for cutting the food item into the first portion and a second portion. The holding structure is preferably an upper belt-type conveyor and the apparatus most preferably comprises a series of carrier plates conveyed by a lower conveyor system. Alternatively, the holding structure can be replaced with a vacuum system for generating a vacuum in the plate cavities.
    Type: Grant
    Filed: April 9, 1998
    Date of Patent: May 7, 2002
    Assignee: Tyson Foods, Inc.
    Inventors: Leland Edward Tollett, Stanley Bryan Andrews, Mark Henry Curry, Johnny Simpson Breeden, Donald Mark Zimmerman
  • Patent number: 5733184
    Abstract: An article, an apparatus, and a method for processing a meat product. The inventive article comprises: a shaft; a spiral conveying channel on the exterior of the shaft; and a cutting member projecting from the shaft and positioned within the conveying channel. The inventive apparatus comprises the inventive article and a driving assembly for rotating the inventive article about its longitudinal axis. The inventive method comprises the step of conveying a meat item through the conveying channel of the inventive article such that the cutting member contacts and forms a cut in the meat item.
    Type: Grant
    Filed: January 19, 1996
    Date of Patent: March 31, 1998
    Assignee: Tyson Holding Company
    Inventors: Mark Henry Curry, Donald Mark Zimmerman, Kelvin Donald Lasse, Bobby Z. Haley