Patents by Inventor Robert S. Steffens

Robert S. Steffens 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).

  • Page turning arrangment
    Patent number: 6841726
    Abstract: An arrangement for turning pages successively picks up each page by suction applied to a bottom corner thereof, and turns the page over a turning axis. A wireless actuator initiates the turning. The arrangement is mountable at diverse locations and is quiet in operation.
    Type: Grant
    Filed: March 26, 2003
    Date of Patent: January 11, 2005
    Assignee: Steffen Rosen LLC
    Inventors: Robert S. Steffens, Ben Shepard
  • Page turning arrangement
    Publication number: 20040187669
    Abstract: An arrangement for turning pages successively picks up each page by suction applied to a bottom corner thereof, and turns the page over a turning axis. A wireless actuator initiates the turning. The arrangement is mountable at diverse locations and is quiet in operation.
    Type: Application
    Filed: March 26, 2003
    Publication date: September 30, 2004
    Inventors: Robert S. Steffens, Ben Shepard
  • Multicolor ink transfer arrangement and method
    Patent number: 6526883
    Abstract: Differently colored inks are applied in close proximity to each other during inking of an etched or engraved surface of a die or plate in a printing press. The spacing between the inks is controlled by the pressure of a transfer roller against the die or plate surface. The spacing can be reduced to effectively zero so that the inks effectively touch each other on the die or plate. Cross contamination of the inks when the transfer roller picks up the inks from a fountain roller is prevented.
    Type: Grant
    Filed: May 4, 2001
    Date of Patent: March 4, 2003
    Assignee: Cronite Company Inc.
    Inventors: Robert S. Steffens, Alfred F. Schwenzer
  • Multicolor ink transfer arrangement and method
    Publication number: 20020162465
    Abstract: Differently colored inks are applied in close proximity to each other during inking of an etched or engraved surface of a die or plate in a printing press. The spacing between the inks is controlled by the pressure of a transfer roller against the die or plate surface. The spacing can be reduced to effectively zero so that the inks effectively touch each other on the die or plate. Cross contamination of the inks when the transfer roller picks up the inks from a fountain roller is prevented.
    Type: Application
    Filed: May 4, 2001
    Publication date: November 7, 2002
    Inventors: Robert S. Steffens, Alfred F. Schwenzer
  • Ink transfer arrangement and method in a printing press
    Patent number: 4669379
    Abstract: An ink transfer arrangement for and a method of transferring ink to an engraved die surface of a reciprocatable die in a printing press of the type including a die drive for reciprocating the die, and a press ram drive for pressing sheet material to be printed against the ink engraved die surface to produce intaglio printing are disclosed. A rotatable inking roller is normally mounted on an ink fountain in inking engagement with a fountain roller also mounted on the fountain. Ink from the fountain is transferred to the fountain roller, and thereupon to the inking roller. The inking roller is mounted for limited displacement relative to the fountain roller in a direction transverse to the axis of rotation of the inking roller.
    Type: Grant
    Filed: February 21, 1986
    Date of Patent: June 2, 1987
    Inventor: Robert S. Steffens