Patents by Inventor Dennis Karlsson

Dennis Karlsson 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: 7513072
    Abstract: A method for producing, by a laser that scans the rear side of a transparent object, figures and text that are recessed in the transparent material and that as seen from the outside (5) appear as a raised relief (1) and for which the effect of depth (d, d?) depends on the amplitude of a signal superposed the input, frequency-controlled laser power by which the screen pattern is obtained. By an optimal fineness of scanning relative the material of the sign, the figures may obtain a very strong luminescence even at a very low input edge-illumination power. Furthermore, the invention relates to an edge-illuminated electric sign (L1, L2) with a figure produced by the manufacturing method according to the invention. Furthermore, the invention relates to a mounting system in the form of two interacting molding strips (3, 4) for mounting one or more electric signs (L1, L2) manufactured according to the invention.
    Type: Grant
    Filed: April 5, 2004
    Date of Patent: April 7, 2009
    Inventor: Dennis Karlsson
  • Publication number: 20070030693
    Abstract: The present invention relates to an electric sign comprising an front side (2), a rear side (4) and at least one side surface (5, 6, 15) that extends between and links together the front side (2) and the rear side (4), where a light guiding interior of a transparent material is comprised between said front side (2), rear side (4) and side surface (5, 6, 15), a lighting appliance (8) being arranged in connection with said side surface (5, 6, 15) in order to emit light to the light guiding material, and the rear side (4) being adapted to comprise figures (3) reflecting the light from the lighting appliance (8), through the front side (2) of the electric sign, characterised in that the front side (2) of the electric sign (1) is convex.
    Type: Application
    Filed: April 1, 2004
    Publication date: February 8, 2007
    Inventor: Dennis Karlsson
  • Publication number: 20060179695
    Abstract: A method for producing, by a laser that scans the rear side of a transparent object, figures and text that are recessed in the transparent material and that as seen from the outside (5) appear as a raised relief (1) and for which the effect of depth (d, d?) depends on the amplitude of a signal superposed the input, frequency-controlled laser power by which the screen pattern is obtained. By an optimal fineness of scanning relative the material of the sign, the figures may obtain a very strong luminescence even at a very low input edge-illumination power. Furthermore, the invention relates to an edge-illuminated electric sign (L1, L2) with a figure produced by the manufacturing method according to the invention. Furthermore, the invention relates to a mounting system in the form of two interacting moulding strips (3, 4) for mounting one or more electric signs (L1, L2) manufactured according to the invention.
    Type: Application
    Filed: April 5, 2004
    Publication date: August 17, 2006
    Inventor: Dennis Karlsson