Patents by Inventor Rudolf Rekewitz

Rudolf Rekewitz 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).

  • Housing cover for printers
    Patent number: 4641982
    Abstract: A printer housing cover particularly adapted for use with printers capable of operating either with endless tractor fed perforated margin paper or single sheet paper. The housing cover has a portion thereof overlying the paper roller or platen defining a slot through the housing cover for paper egress. The portion overlying the platen is pivotable to provide a wide opening above the platen with the pivoted portion forming a paper support surface for insertion of single sheets.
    Type: Grant
    Filed: February 15, 1985
    Date of Patent: February 10, 1987
    Inventor: Rudolf Rekewitz
  • Transport device for margin-perforated fanfold paper and for continuous roll paper
    Patent number: 4564305
    Abstract: A paper transport mechanism for data printers having powered platens includes a marginal perforation paper transport tractor upstream of the platen and a means for supplying unmargined perforated paper independent of the tractor to the platen, the platen having opposed pinch rollers, and means for adjusting the pinch force of the pinch rollers to accommodate either unperforated platen driven paper or perforated tractor driven paper.
    Type: Grant
    Filed: April 14, 1983
    Date of Patent: January 14, 1986
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rudolf Rekewitz, Hermann Wambach
  • Paper feed mechanism with varying contact pressure
    Patent number: 4537521
    Abstract: The paper transport shaft of a paper feed mechanism is movably mounted on an arm of a frame-supported spring wire lever. Another arm of the spring wire lever is pivotably mounted and may be set to flex the body of the spring wire lever through a pivot lever. Depending on the pivoting of the pivot lever the contact pressure between a paper pressure roller mounted on the paper transport shaft and a platen is varied. Selectively, the paper transport shaft can be pivoted away from the platen to allow adjustment of the paper inserted in the paper feed mechanism.
    Type: Grant
    Filed: October 26, 1983
    Date of Patent: August 27, 1985
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rudolf Rekewitz, Hermann Wambach
  • Line control for platen printing devices
    Patent number: 4195940
    Abstract: A control for platen rotation in printers, and particularly in telex machines where the platen rotation drive, either a stepping motor or a DC motor, is provided with an incremental control actuated by keyboard keys to advance or counter advance the platen by a small increment of the full line space whereby alignment of the imprinting line with form spaces is facilitated.
    Type: Grant
    Filed: July 13, 1977
    Date of Patent: April 1, 1980
    Assignee: Siemens Aktiengesellschaft
    Inventor: Rudolf Rekewitz
  • Magnetically actuated needle printing head and method of manufacture
    Patent number: 4166314
    Abstract: A magnetically actuated printing needle of the type used in mosaic needle printing heads having printing needles moved by an axially movable armature connected to the needle is disclosed wherein the needle is provided with an armature received portion having a varying surface configuration locked into a bore in the armature by cold press forming of the armature after the needle is inserted thereinto.
    Type: Grant
    Filed: March 10, 1977
    Date of Patent: September 4, 1979
    Assignee: Siemens Aktiengesellschaft
    Inventors: Rudolf Rekewitz, Peter Kuelzer