Patents by Inventor Jorg Leiffels

Jorg Leiffels 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).

  • Method of and device for producing endless strips
    Patent number: 8900499
    Abstract: The invention relates to a method and to a device for producing endless strands, particularly plastic strands having structure in the longitudinal axis. According to the invention, form elements (14, 15) bounding a form cavity (4) are brought together and aligned with each other in rows for making a form cavity (4), the form cavity (4) is moved in the longitudinal axis of the rows and casting material is brought into the form cavity (4) at a gate location running against the direction of motion through a side opening (5) of the form cavity (4), and the form cavity is opened continuously at a distance from the gate location while moving the form elements apart, in order to demold an endless strand solidified in the form cavity (4).
    Type: Grant
    Filed: October 16, 2009
    Date of Patent: December 2, 2014
    Assignee: SaarGummi Technologies S.a.r.l.
    Inventors: Frank Berkemeier, Jorg Leiffels
  • Method of and Device for Producing Endless Strips
    Publication number: 20110212301
    Abstract: The invention relates to a method and to a device for producing endless strands, particularly plastic strands having structure in the longitudinal axis. According to the invention, form elements (14, 15) bounding a form cavity (4) are brought together and aligned with each other in rows for making a form cavity (4), the form cavity (4) is moved in the longitudinal axis of the rows and casting material is brought into the form cavity (4) at a gate location running against the direction of motion through a side opening (5) of the form cavity (4), and the form cavity is opened continuously at a distance from the gate location while moving the form elements apart, in order to demold an endless strand solidified in the form cavity (4).
    Type: Application
    Filed: October 16, 2009
    Publication date: September 1, 2011
    Inventors: Frank Berkemeier, Jorg Leiffels