Patents by Inventor Kurt Roehrer

Kurt Roehrer 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: 4650358
    Abstract: A feeder for a printer serves for guiding and/or advancing the record carrier. Tractors (1a and 1b) placed in a pair are provided. The tractors (1a and 1b) have hinged parts which can be adjusted in different hinged positions by pivoting bearings (11). To provide hinged part on printers, particularly dot matrix printers, with simple pivoting bearings that can be produced economically and to eliminate a special fastener for the pivoted positions, a spring steel wire piece (18) cut to length serves as a pivot pin (17) and for fixing of the closed and open end positions of the hinged part (10). The spring steel wire piece (18) is put under tension by bending.
    Type: Grant
    Filed: April 2, 1985
    Date of Patent: March 17, 1987
    Assignee: Mannesmann Aktiengesellschaft
    Inventors: Gerhard Lohrmann, Kurt Roehrer
  • Patent number: 4613124
    Abstract: Single sheet feeding from a stack is provided by placing the stack onto flat bars defining a stack bottom and being part of a pivotable frame. That frame includes holddown fingers engaging the top sheet at its front edges, and, two separating rollers are provided laterally offset and at a higher level; the rollers are reversibly driven to pull the top sheet out from under the fingers, and upon reversing the rollers slide that sheet towards a platen drum being selectively drivingly coupled to the separating rollers.
    Type: Grant
    Filed: December 14, 1983
    Date of Patent: September 23, 1986
    Assignee: Mannesmann AG
    Inventors: Gerhard Lohrmann, Kurt Roehrer