Patents by Inventor Lowell J. Wells

Lowell J. Wells 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).

  • Ceramic decorated glassware
    Patent number: 4290533
    Abstract: Halftone printing of a plurality of different colors is employed to produce a composite graphic display on the surface of the glass. Precise alignment is utilized in order to register the halftone printing screens for each color that is deposited on the glass surface. The opaque enamels employed in the decorative process are carefully balanced with respect to each other to obtain the desired color hues. The deposition angles for the alignment of the halftone dots is controlled to minimize the undesirable moire effect.
    Type: Grant
    Filed: December 21, 1978
    Date of Patent: September 22, 1981
    Assignee: Owens-Illinois, Inc.
    Inventors: Thomas F. Rupp, Lowell J. Wells
  • Method of decorating glassware
    Patent number: 4143183
    Abstract: The method and decorated article comprising glassware such as bottles and drinking tumblers is set forth. Halftone printing of a plurality of different colors is employed to produce a composite graphic display on the surface of the glass. Precise alignment is utilized in order to register the halftone printing screens for each color that is deposited on the glass surface. The opaque enamels employed in the decorative process are carefully balanced with respect to each other to obtain the desired color hues. The deposition angles for the alignment of the halftone dots is controlled to minimize the undesirable moire effect.
    Type: Grant
    Filed: June 27, 1977
    Date of Patent: March 6, 1979
    Assignee: Owens-Illinois, Inc.
    Inventors: Thomas F. Rupp, Lowell J. Wells