Patents by Inventor Rolf Hesse

Rolf Hesse 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).

  • Vertical wall covering bracket assembly
    Patent number: 5044589
    Abstract: A bracket assembly for adjustably positioning a window covering headrail having a first L-shaped bracket part for wall mounting that slidingly fits on a second bracket part secured to the headrail. Projections on the second bracket part slide along grooves in the first bracket part and resist removal from the grooves by frictionally engaging the groove ends.
    Type: Grant
    Filed: June 25, 1990
    Date of Patent: September 3, 1991
    Inventors: Fred W. Milne, Rolf Hess
  • Method and apparatus for removing arsenic from an arsenic-containing material
    Patent number: 4497780
    Abstract: Method and apparatus for the removal of arsenic compounds from an arsenic-containing material wherein the material is reacted with an oxygen carrier and a sulfur carrier under temperature conditions sufficiently high to convert the arsenic compounds to sulfides and the arsenic sulfides are thereupon condensed and deposited in solid form.
    Type: Grant
    Filed: November 1, 1983
    Date of Patent: February 5, 1985
    Assignee: Klockner-Humboldt-Deutz AG
    Inventors: Ihsan Barin, Michael Gamroth, Rolf Hesse, Soegianto Wirosoedirdio