Patents Assigned to 4JET Technologies GmbH
  • Patent number: 11162873
    Abstract: A tire comprises an inner surface defining and facing an inner hollow space, an outer surface pointing away from the inner hollow space. A method of processing the tire comprises identifying the position of a first feature on the outer surface and cleaning a surface portion of the inner surface of the tire, wherein the surface portion has a first predetermined position relative to the position of the first feature on the outer surface. A separate element is attached with its attachment surface to the surface portion, wherein a ratio of a size of the surface portion over a corresponding size of the attachment surface is smaller than 10.
    Type: Grant
    Filed: August 9, 2017
    Date of Patent: November 2, 2021
    Assignee: 4JET TECHNOLOGIES GMBH
    Inventors: Armin Kraus, Jörg Jetter, André Lange
  • Publication number: 20170213117
    Abstract: Described is in particular a method of generating a transfer pattern (110) defining a digital code pattern. According to the described method, a digital code pattern definition (104) defining a plurality of light and dark portions is received, wherein each of such portion has a size A. The transfer pattern (110) is generated by rasterizing the digital code pattern definition (104) with structure pixels, in particular by mapping the digital code pattern definition into an array of equally sized structure pixels, wherein the size A of the light and dark portions is an integer multiple of a size B of the structure pixels. The array of structure pixels comprises at least two different types of structure pixels. Each type of structure pixel defines a certain surface structure on the rubber article, the surface structure causing a certain optical reflectivity of the structure pixel. Further, at least two types of structure pixels have a different optical reflectivity.
    Type: Application
    Filed: July 20, 2015
    Publication date: July 27, 2017
    Applicant: 4Jet Technologies GMBH
    Inventor: Armin KRAUS
  • Publication number: 20170011666
    Abstract: Described is a method of providing a rubber article (100) with a digital code pattern (102), wherein the rubber article (100) comprises a cured polymer material (104), the method comprising: Generating, e.g. by means of electromagnetic radiation (110), a digital code pattern (102) in the cured polymer material of the rubber article, the digital code pattern (102) comprising a first surface portion (106) and a second surface portion (108) having different optical reflectivity. Generating the digital code pattern (102) may include generating protrusions (114) or holes (126) in the second surface portions (108). The digital code pattern (102) may identify the rubber article (100) e.g. within a batch of rubber articles. Described is also a rubber article (100) comprising a digital code pattern (102), a rubber article marking device and a computer program product for controlling a rubber article marking device.
    Type: Application
    Filed: February 9, 2015
    Publication date: January 12, 2017
    Applicant: 4Jet Technologies GMBH
    Inventor: Armin KRAUS
  • Patent number: 9132509
    Abstract: A method and a device for engraving a flexible strip, the device including a drive device for moving a flexible strip in a longitudinal direction of the flexible strip; a support device for supporting the strip in a circumferential direction of a cylinder on a surface segment of the cylinder acting as a support surface; a processing head oriented towards the support surface for engraving the strip with at least one tool oriented towards the support surface; and a drive device for moving the processing head, wherein the processing head is pivotable through the drive device about a longitudinal axis of the cylinder. In order to engrave a closed loop with a single processing head it is proposed that the processing head is pivotable through a drive device about a longitudinal axis of the cylinder.
    Type: Grant
    Filed: April 18, 2013
    Date of Patent: September 15, 2015
    Assignee: 4JET Technologies GmbH
    Inventor: Stefan Bergfeld
  • Publication number: 20140144894
    Abstract: A method and a device for engraving a flexible strip, the device including a drive device for moving a flexible strip in a longitudinal direction of the flexible strip; a support device for supporting the strip in a circumferential direction of a cylinder on a surface segment of the cylinder acting as a support surface; a processing head oriented towards the support surface for engraving the strip with at least one tool oriented towards the support surface; and a drive device for moving the processing head, wherein the processing head is pivotable through the drive device about a longitudinal axis of the cylinder. In order to engrave a closed loop with a single processing head it is proposed that the processing head is pivotable through a drive device about a longitudinal axis of the cylinder.
    Type: Application
    Filed: April 18, 2013
    Publication date: May 29, 2014
    Applicant: 4JET Technologies GmbH
    Inventor: Stefan Bergfeld