Patents by Inventor Steffen Rotz

Steffen Rotz 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: 7100411
    Abstract: A can body is fitted to an inner shaping tool rotatable adjacent a freely rotatable outer shaping tool outside the can body. An arm having an outer end rotatably carrying the outer shaping tool and an inner end is pivotal about its inner end. The inner tool and the can body fitted thereto are rotated to entrain and rotate the outer tool. A motor controlledly pivots the arm and thereby moves the outer shaping tool toward and away from the inner shaping tool. A position detector connected to arm senses the angular position thereof and the relative spacing of the inner and outer tools. A controller including a memory controls the motor in accordance with a sensed angular position of the arm.
    Type: Grant
    Filed: February 20, 2003
    Date of Patent: September 5, 2006
    Assignee: SIG Cantec GmbH & Co. KG
    Inventors: Norbert Lentz, Steffen Rötz
  • Publication number: 20050103076
    Abstract: The invention relates to a device for reshaping and/or folding bodies of cans (11) by means of two shaping tools (12, 13) which rotate in opposite directions. One of said shaping tools is arranged on a lever (14) such that said shaping tool can be radially displaced. The lever is connected to a controllable actuator (15, 16, 17).
    Type: Application
    Filed: February 20, 2003
    Publication date: May 19, 2005
    Inventors: Norbert Lentz, Steffen Rotz
  • Publication number: 20040011112
    Abstract: The invention relates to an apparatus for spreading and shaping can bodies, having a pin-like shaping tool that is forced from one end into the can body to be widened and a counter tool.
    Type: Application
    Filed: April 16, 2003
    Publication date: January 22, 2004
    Inventors: Norbert Lentz, Steffen Rotz, Jan Riemenschneider, Karl-Heinz Witt
  • Patent number: 5865083
    Abstract: A knife holder unit combined with a rotary knife pair includes a frame composed of an upper frame part and a lower frame part; and an upper and a lower knife holder assembly supported in the upper and the lower frame part, respectively. Each knife holder assembly includes a bearing shaft composed of a first bearing shaft part having a longitudinal axis and an adjoining second bearing shaft part. The first bearing shaft part is received in a recess of a respective frame part for turning motions therein about the longitudinal axis. A first securing arrangement immobilizes the first bearing shaft part relative to the respective frame part. A rotary bearing surrounds the second bearing shaft part and has a rotary axis which is offset relative to the longitudinal axis to define an eccentricity therewith. A rotary knife is mounted on the rotary bearing.
    Type: Grant
    Filed: May 5, 1997
    Date of Patent: February 2, 1999
    Assignee: Krupp Kunststofftechnik GmbH
    Inventors: Hubert Kania, Thomas Kolodzey, Norbert Lentz, Steffen Rotz
  • Patent number: 5853275
    Abstract: An apparatus for flanging an edge of a can body includes a flanging tool which has an inner tool part having an outer circumferential flanging face for engaging an inner surface of a circumferential edge zone of the can body; an outer tool part surrounding the inner tool part and having an inner circumferential abutment face surrounding the flanging face for abutting a periphery of the can body edge during flanging of the can body edge by the flanging face; an axially hollow, non-rotatable spindle to which the outer tool part is affixed and which has a first axis; a rotary shaft received in the spindle and having a second axis coinciding with the first axis; and a shaft stub affixed to and extending from the shaft. The inner tool part is rotatably mounted on the shaft stub which has a central, third axis disposed at an inclination to the second axis.
    Type: Grant
    Filed: July 8, 1997
    Date of Patent: December 29, 1998
    Assignee: Krupp Kunststofftechnik Gesellschaft mit beschrankter Haftung
    Inventors: Norbert Lentz, Karl-Heinz Witt, Steffen Rotz