Patents by Inventor Ralf Sprick

Ralf Sprick 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: 7713371
    Abstract: The invention relates to a method for applying flat material web sections (28) to a first flat web of material (6) which is displaced in the direction of the machine having a first web speed during the production of hygiene articles or medical articles. The dimensions of the flat material web sections (28), in the direction of the machine, are smaller than the measurements of the articles which are to be produced. The flat material web sections (28) of an endless web (8) are separated in the cut-and-place method and are arranged on the first flat material web (6). The endless web (8) is fed at a second web speed to a second cutting station in the direction of a cutting roller (18). According to the inventive method, a front section (26) of the endless web (8) is applied against a surface section (24) of an anvil roller (22) which co-operates with the cutting roller (18), the surface section being curved less than the periphery (34) of the anvil roller (22).
    Type: Grant
    Filed: December 8, 2004
    Date of Patent: May 11, 2010
    Assignee: Paul Hartmann AG
    Inventors: Armin Lohrengel, Ralf Sprick, Bernd Frank
  • Publication number: 20070157778
    Abstract: The invention relates to a method for applying flat material web sections (28) to a first flat web of material (6) which is displaced in the direction of the machine having a first web speed during the production of hygiene articles or medical articles. The dimensions of the flat material web sections (28), in the direction of the machine, are smaller than the measurements of the articles which are to be produced. The flat material web sections (28) of an endless web (8) are separated in the cut-and-place method and are arranged on the first flat material web (6). The endless web (8) is fed at a second web speed to a second cutting station in the direction of a cutting roller (18). According to the inventive method, a front section (26) of the endless web (8) is applied against a surface section (24) of an anvil roller (22) which co-operates with the cutting roller (18), the surface section being curved less than the periphery (34) of the anvil roller (22).
    Type: Application
    Filed: December 8, 2004
    Publication date: July 12, 2007
    Inventors: Armin Lohrengel, Ralf Sprick, Bernd Frank
  • Patent number: 7044133
    Abstract: The invention relates to a folded medical cover (30) for use in operation rooms, especially for instrument tables (2) or operation tables or for the extremities of a patient. The cover comprises a tubular section (36) with at least one first open end (32) for putting the cover onto the table (2) or the extremity, and has a second, preferably closed end (34). The tubular section (36) is folded at least once transverse to its longitudinal direction (16) and the second end (34) functions as a stop (53) when the cover is pulled over the table or the extremity. The aim of the invention is to simplify handling of such a cover.
    Type: Grant
    Filed: January 18, 2002
    Date of Patent: May 16, 2006
    Assignee: Paul Hartmann AG
    Inventors: Armin Lohrengel, Theresia Knecht, Ralf Sprick
  • Publication number: 20040035334
    Abstract: The invention relates to a folded medical cover (30) for use in operation rooms, especially for instrument tables (2) or operation tables or for the extremities of a patient. The cover comprises a tubular section (36) with at least one first open end (32) for putting the cover onto the table (2) or the extremity, and has a second, preferably closed end (34). The tubular section (36) is folded at least once transverse to its longitudinal direction (16) and the second end (34) functions as a stop (53) when the cover is pulled over the table or the extremity. The aim of the invention is to simplify handling of such a cover.
    Type: Application
    Filed: July 9, 2003
    Publication date: February 26, 2004
    Inventors: Armin Lohrengel, Theresia Knecht, Ralf Sprick