Patents by Inventor Fred F. Duarte

Fred F. Duarte 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).

  • Magnetic support plate for cladded steel and steel-backed polymer stamping/blocking and embossing graphic arts dies
    Patent number: 6152035
    Abstract: A magnetic support plate for cladded steel and steel-backed polymer stamping/blocking and embossing graphic arts dies is provided in which a non-ferrous, rectangular support member (14, 114, 214) made up of a plate (26, 126, 226) has a die mounting surface (24) for complementally receiving the graphic arts die assembly (12). The plate (26, 126, 226) has a series of elongated recesses or cavities (28, 128, 228) in one face thereof, with each of the cavities being provided with two rectangular magnets that are located in spaced relationship one from another. The two magnets within each cavity are disposed in positions with the magnetic north and south poles thereof opposite one another. A ferro-magnetic component (36) in the form of a steel plate or strip is provided within each cavity in bridging, contacting relationship to both of the magnets within each cavity.
    Type: Grant
    Filed: December 17, 1999
    Date of Patent: November 28, 2000
    Assignee: Universal Engraving, Inc.
    Inventors: Todd E. Scholtz, Fred F. Duarte, Dennis F. Hendrix