Patents Assigned to Letraset Limited
  • Patent number: 5087495
    Abstract: The present invention is directed to a transfer sheet for selectively transferring a transfer layer to xerographic images on a receiving substrate such as paper. The preferred transfer sheet comprises, in successive layers, a carrier film, a metallic film and an adhesive, the adhesive containing a dispersion of 0.5 micron or larger particulate material. In the preferred embodiment, the invention comprising an assembly for use in the process of making a selective transfer to xerographic images on sheet material. The assembly comprises a backing sheet, a transfer sheet and a connector (such as a length of adhesive tape) securing the backing sheet to the transfer sheet at the leading edge of the assembly.
    Type: Grant
    Filed: April 7, 1989
    Date of Patent: February 11, 1992
    Assignee: Esselte Letraset Limited
    Inventor: Marshall A. Nelson
  • Patent number: 5012603
    Abstract: A modular sign system is disclosed in which signs having various thicknesses can be adjustably mounted on a post. The system comprising a post which has a longitudinally extending slot into which a sign or a plurality of nesting components can be accommodated. Each nesting component can be accommodated to receive either a sign of lesser thickness or another nesting component which may form a spacer between several signs or may itself hold a sign of appropriate thickness.
    Type: Grant
    Filed: February 23, 1989
    Date of Patent: May 7, 1991
    Assignee: Esselte Letraset Limited
    Inventor: Kenneth W. A. Elcock
  • Patent number: 4544430
    Abstract: Legends are built up from dry transfers in the usual way but on an intermediate carrier. Water or other liquid is applied to the rear surface of the intermediate carrier and an adhesive tape or sheet applied over the letters. The adhesive tape is then peeled away from the intermediate carrier bearing the letters which can then be adhered where desired, e.g. on a background scene or in a frame, using their own adhesive, whereafter the adhesive tape or sheet is peeled away to leave the letters looking as though they had been transferred there in the usual way.
    Type: Grant
    Filed: February 3, 1982
    Date of Patent: October 1, 1985
    Assignee: Letraset Limited
    Inventor: John V. Shepherd
  • Patent number: 4365551
    Abstract: The invention relates to screen printing apparatus which comprises a printing station, means for feeding a web of material to be printed to the printing station and away therefrom, a squeegee mounted at the printing station for cooperation with a screen printing mesh, means for attaching a screen printing mesh tensioned on a frame so that part of the mesh is at the printing station, means for reciprocating such a screen printing mesh in a frame through the printing station, means for feeding ink to one side of the squeegee, a profiled support at the printing station for supporting the material to be printed, and means for advancing the screen mesh in a frame and the material to be printed at the same speed past the printing station while biasing the screen mesh by means of the squeegee towards the support. According to the invention the profiled support is movable in order to compensate for changes in the shape of the screen mesh during the printing stroke.
    Type: Grant
    Filed: August 12, 1980
    Date of Patent: December 28, 1982
    Assignee: Letraset Limited
    Inventor: David Horton
  • Patent number: D414346
    Type: Grant
    Filed: June 12, 1995
    Date of Patent: September 28, 1999
    Assignee: Esselte Letraset Limited
    Inventor: Vazgen J. Houssian