Patents Assigned to Louis J. Christen & Company, Inc.
  • Patent number: 6644834
    Abstract: A portable lamp for providing mixed direct and diffused light. The lamp is especially suited for providing pleasant lighting conditions at a table or workbench. A hollow cover is mounted upon a base. A light bulb inside the cover provides light, the bulb being powered by a self contained power source such as a battery. The cover, which may be spherical, has a translucent upper portion for transmitting diffused light, a medial transparent portion for transmitting undiffused light directly to the tabletop, and an opaque lower portion. A conical shaped reflector within the cover serves to reflect light emitted by the bulb to the translucent and transparent portions of the cover. Colored translucent disks may be removably attached inside the cover to add color to the diffused light.
    Type: Grant
    Filed: May 1, 2002
    Date of Patent: November 11, 2003
    Assignee: Louis J. Christen & Company, Inc.
    Inventor: Louis J. Christen
  • Patent number: D458805
    Type: Grant
    Filed: April 20, 2000
    Date of Patent: June 18, 2002
    Assignee: Louis J. Christen & Company, Inc.
    Inventor: Louis J. Christen