Patents by Inventor Dirk Cramer

Dirk Cramer 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: 11953173
    Abstract: An illumination apparatus for vehicles having a light source, a support plate for receiving the light source, and an optical unit arranged in front of the light source in the main emission direction to deflect light emitted by the light source onto a roadway in front of the vehicle in accordance with a predetermined light distribution. The light source has a light-emitting surface and a light source frame surrounding the same. The light source is surrounded by a shielding frame with a wall that is raised in the main emission direction and encloses an intermediate space between the light source and the optical unit.
    Type: Grant
    Filed: April 21, 2023
    Date of Patent: April 9, 2024
    Assignee: Hella GmbH & CO. KGAA
    Inventors: Herbert Cramer, Florian Herold, Christian Schimon, Alexander Schwan, Dirk Schwemin
  • Patent number: 7655114
    Abstract: The present invention shows a process and device of calendering a web. The process includes drying the web and winding the web at the end of a production section. The process includes transporting the wound web to at least one off-line calender, unwinding the web and passing the web through the at least one off-line calender. Further, the process includes treating the web between drying and winding of the web in at least one on-line calendering unit. Further still, the process includes at least one on-line calendering unit includes at least one nip defined by at least one hard roller. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: April 22, 2005
    Date of Patent: February 2, 2010
    Assignee: Voith Paper Patent GmbH
    Inventors: Josef Kohnen, Dirk Cramer
  • Patent number: 7162953
    Abstract: Roll arrangement that includes a deflection controlled roll and a counter roll. The counter roll and the deflection controlled roll are arranged to form at least one nip. The deflection controlled roll includes a rotating roll jacket, a carrier axially passing through the roll jacket, and support elements arranged between the roll jacket and the carrier. A plurality of the support elements, located at a nip side of the deflection controlled roll, are structured and controllable so that at least some of the plurality of support elements assume a position retracted from the roll jacket during a start-up operation of the deflection controlled roll. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Grant
    Filed: March 7, 2003
    Date of Patent: January 16, 2007
    Assignee: Voith Paper Patent GmbH
    Inventors: Eugen Schnyder, Joachim Hinz, Dirk Cramer
  • Publication number: 20050235840
    Abstract: The present invention shows a process and device of calendering a web. The process includes drying the web and winding the web at the end of a production section. The process includes transporting the wound web to at least one off-line calender, unwinding the web and passing the web through the at least one off-line calender. Further, the process includes treating the web between drying and winding of the web in at least one on-line calendering unit. Further still, the process includes at least one on-line calendering unit includes at least one nip defined by at least one hard roller. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: April 22, 2005
    Publication date: October 27, 2005
    Applicant: Voith Paper Patent GmbH
    Inventors: Josef Kohnen, Dirk Cramer
  • Patent number: 6705562
    Abstract: Roll winding device, in particular for a reel cutter, with at least one support device, comprising at least one carrying roll disposed with its axis in the lateral direction in a machine frame, which has a column device disposed on each of the two axial ends of the carrying roll, the columns being connected to each other in the lateral direction by means of at least one cross bar. At least one cross bar is embodied as a sealing box which is disposed underneath a winding bed and has a high mechanical stability so that it considerably increases the rigidity of the frame.
    Type: Grant
    Filed: April 20, 1999
    Date of Patent: March 16, 2004
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventor: Dirk Cramer
  • Publication number: 20030199376
    Abstract: Roll arrangement that includes a deflection controlled roll and a counter roll. The counter roll and the deflection controlled roll are arranged to form at least one nip. The deflection controlled roll includes a rotating roll jacket, a carrier axially passing through the roll jacket, and support elements arranged between the roll jacket and the carrier. A plurality of the support elements, located at a nip side of the deflection controlled roll, are structured and controllable so that at least some of the plurality of support elements assume a position retracted from the roll jacket during a start-up operation of the deflection controlled roll. The instant abstract is neither intended to define the invention disclosed in this specification nor intended to limit the scope of the invention in any way.
    Type: Application
    Filed: March 7, 2003
    Publication date: October 23, 2003
    Applicant: Voith Paper Patent GmbH
    Inventors: Eugen Schnyder, Joachim Hinz, Dirk Cramer
  • Patent number: 6616809
    Abstract: Process and apparatus for producing paper reels from a paper web. The process includes calendering the paper web, longitudinally cutting the paper web into partial webs, and winding the partial webs into paper reels. The calendering, longitudinal cutting, and winding occur on-line and without intermediate winding. The apparatus includes a paper machine, a calender, a longitudinal cutting device, and a reel winding device. The paper machine, the calender, the longitudinal cutting device, and the reel winding device are successively arranged in a web run direction.
    Type: Grant
    Filed: July 25, 2001
    Date of Patent: September 9, 2003
    Assignee: Voith Paper Patent GmbH
    Inventors: Hans-Rolf Conrad, Dirk Cramer
  • Patent number: 6527218
    Abstract: Winding device and process for winding wound rolls. The winding device includes a pressure roll axially divided into separate sections and a winding arrangement. The pressure roll is arranged to be placed on the winding arrangement. A coupling device is arranged to axially couple the separate sections together, and a drive unit is arranged to commonly rotatably drive the axially coupled separate sections. The process includes axially coupling the separate sections of the pressure roll together with the coupling device, rotatably driving the axially coupled separate sections, and pressing, at a beginning of a winding procedure, the separate sections of the pressure roll against the wound rolls.
    Type: Grant
    Filed: August 25, 2000
    Date of Patent: March 4, 2003
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Dirk Cramer, Frank Schorzmann
  • Publication number: 20020060001
    Abstract: Process and apparatus for producing paper reels from a paper web. The process includes calendering the paper web, longitudinally cutting the paper web into partial webs, and winding the partial webs into paper reels. The calendering, longitudinal cutting, and winding occur on-line and without intermediate winding. The apparatus includes a paper machine, a calender, a longitudinal cutting device, and a reel winding device. The paper machine, the calender, the longitudinal cutting device, and the reel winding device are successively arranged in a web run direction.
    Type: Application
    Filed: July 25, 2001
    Publication date: May 23, 2002
    Applicant: VOITH PAPER PATENT GmbH
    Inventors: Hans-Rolf Conrad, Dirk Cramer
  • Patent number: 6370848
    Abstract: Device and process for the production and packaging of material web rolls. The device includes a slitting station configured to slit a material web into a plurality strips and a winding bed adapted to accommodate a stack of individual material web rolls next to one another. Also included is a packaging web dispenser adapted to travel, in at least one direction, parallel to the axis of the stack of individual material web rolls, and further adapted to dispense a packaging web at a predetermined angle to a circumferential direction of rotation of the stack of individual material web rolls. Additionally, a cutting device adapted to cut the packaging web parallel to the end faces of the material web roll is provided. The process of the invention includes helically wrapping the web rolls with a packaging web and cutting the packaging web at each position corresponding to the end faces of the material web rolls with the aid of the cutting device.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: April 16, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Dirk Cramer, Ludger Goddemeier, Volker Schölzke
  • Patent number: 6364243
    Abstract: A reel winding arrangement includes a contact roller, first and second winding position groups located on a first and second sides of the contact roller, and a core feeding device which includes a longitudinal transport device and a core moving device. The core moving device also includes at least one carrier arrangement positioned to extend over an axial length of said contact roller and at least one pivotable holding arm. A method of winding reel cores includes forming first and second winding positions on first and second sides of a contact roller, loading a plurality of reel cores on a longitudinal transport device, and pivotably feeding the plurality of reel cores from the longitudinal transport device to one of said first winding position and said second winding positions.
    Type: Grant
    Filed: December 6, 1999
    Date of Patent: April 2, 2002
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Thomas Baumeister, Dirk Cramer
  • Patent number: 6298634
    Abstract: Process for producing a wound roll that is wrapped on its circumference, an apparatus for winding and wrapping the wound roll, and the wrapped wound roll. The process includes winding a material web into the wound roll, attaching a wrapping web to the material web, and winding the wrapping web attached to the material web around the circumference of the wound roll. The apparatus includes a material web delivery path, a winding device, and an output path of a packaging web dispenser that feeds into the material web delivery path. The wrapped wound roll that includes a wound material web having a circumference covered by a wrapping web. A width of the wrapping web which corresponds to a width of the wound roll. Moreover, the wrapping web is arranged such that in at least one section, the wrapping web is positioned radially inside of the material web.
    Type: Grant
    Filed: June 4, 1999
    Date of Patent: October 9, 2001
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventor: Dirk Cramer
  • Patent number: 6260789
    Abstract: A multi-carrying-roll winder, and method for winding a material web with a multi-carrying-roll winder. The multi-carrying-roll winder comprises a first carrying roll, a second carrying roll, a loading device, and a controller. The first and second carrying rolls contact a reel upon which a material web is to be wound, such that the first carrying roll is driven to wind the material web onto the reel. An additional loading device contacts a circumference of the reel to additionally drive the reel. A controller adjusts an amount of driving power applied to the reel by each of the first carrying roll, the second carrying roll and the additional loading device.
    Type: Grant
    Filed: May 28, 1999
    Date of Patent: July 17, 2001
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventor: Dirk Cramer
  • Patent number: 6250581
    Abstract: Web winding device for winding a material web into a winding roll. The device comprises a rotatably driven first support roller having a circumferential shell and opposed ends, the shell having an outer surface, an inner surface and further having a plurality of shell openings therethrough. A second support roller is also provided. An end face is disposed at one of the opposed ends of the first support roller and a plurality of conduits are axially disposed within the first support roller and axially extend to the end face section, at least one of the plurality of shell openings communicating with each the conduit. A winding bed area is defined by the first and the second support roller, and adapted to support the winding roll. A suction device is mounted to the end face and provides suction to a portion of the surface of the shell. The suction device is fixed relative to the rotation of said first support roller. A pressurization device may also be used to pressurize the winding bed area.
    Type: Grant
    Filed: January 15, 1999
    Date of Patent: June 26, 2001
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventor: Dirk Cramer
  • Patent number: 6248215
    Abstract: Calender and method for treating a material web. The calender includes a plurality of rolls in which each roll has a rotational axis. The rotational axes of the plurality of rolls are arranged to be substantially located in a press plane, and a plurality of nips are formed between adjacent rolls. A control device is provided to selectively open and close the plurality of nips, and the rolls are arranged so that at least two opened nips are positioned between two closed nips. The method includes forming a closed nip with the top roll, forming a closed nip with the bottom roll, forming at least two open nips between closed nips, and guiding the material web through at least the closed nips.
    Type: Grant
    Filed: June 30, 1998
    Date of Patent: June 19, 2001
    Assignee: Voith Sulzer Finishing GmbH
    Inventors: Dirk Cramer, Ulrich Wagner
  • Patent number: 6209817
    Abstract: Method and apparatus for monitoring a winding hardness of a winding roll when winding a material web. A series of marks are placed on the material web at a first location as it is wound onto the winding roll. The distance between two successive marks is detected at a second location. The detected distance of two successive marks is used to determine a stretch of the material web.
    Type: Grant
    Filed: May 12, 1999
    Date of Patent: April 3, 2001
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Hans-Rolf Conrad, Dirk Cramer
  • Patent number: 6176449
    Abstract: Method and a device for winding web sections into web section rolls. The device for winding web sections into web section rolls comprises a central roll and a cutting section. The web section rolls rest against the central roll in at least two winding position groups that are axially offset from one another at different positions about the circumference of the central roll. The cutting device axially extends axially over the winding position groups, and is adapted for pivoting about the central roll through the winding position groups. The method of winding web sections into web section rolls comprises cutting a web section at the point where a web section roll contacts the central roll and transferring the cut web sections to new roll cores.
    Type: Grant
    Filed: January 19, 1999
    Date of Patent: January 23, 2001
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventor: Dirk Cramer
  • Patent number: 6129011
    Abstract: A paper calender has a stack of rolls arranged one above the other. They form an upper stack and a lower stack with a common center roll. Additional center rolls are carried on levers that are capable of pivoting about axes fixed with respect to the frame, and are capable of being placed under load by devices applying force. These devices should be designed to be powerful enough to be capable of compensating for more than the total weight of the associated roll and the parts connected to it. As a result of the various possible settings for the line load, the finishing of the paper can be improved. A method is provided for operating a paper calender having an upper stack of rolls and a lower stack of rolls positioned below the upper stack. Each stack is individually capable of being placed under load by upper and lower force generators.
    Type: Grant
    Filed: January 7, 1999
    Date of Patent: October 10, 2000
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventor: Dirk Cramer
  • Patent number: 6105897
    Abstract: Reel winding roll that includes a core and an elastic surface layer positioned on the core. The roll also includes surface orifices formed on the elastic surface layer, air gathering spaces that are sealed at least in the circumferential direction, and channels arranged to couple the surface orifices to the air gathering spaces. The process includes guiding a moving web over a circumferential portion of the reel winding roll, and receiving, in the air gathering spaces, air entrained by the moving web. The entrained air is guided to the air gathering spaces through the surface orifices and the channels.
    Type: Grant
    Filed: March 24, 1999
    Date of Patent: August 22, 2000
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Dirk Cramer, Ludger Goddemeier, Franz Kayser
  • Patent number: 6089495
    Abstract: Winding device and method for a reel cutter that includes a feed path that is adapted to support a plurality of reel cores, and a plurality of trestles that are adapted for movement substantially parallel to the feed path. Each of the plurality of trestles are coupled to a bearing spindle. A plurality of gripper devices are provided that are adapted for movement substantially parallel to the feed path and that include at least one grip head having a portion adapted for grasping one of the plurality of reel cores. The at least one grip head is moveable between the feed path to the bearing spindle. The method includes gripping one of the reel cores in the feed path with the gripping device of the at least one grip head, moving the one reel core to the bearing spindles, and coupling the bearing spindles to the one reel core.
    Type: Grant
    Filed: December 4, 1998
    Date of Patent: July 18, 2000
    Assignee: Voith Sulzer Papiertechnik Patent GmbH
    Inventors: Dirk Cramer, Jens Kruger