Patents by Inventor Bernd Luhmann

Bernd Luhmann 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).

  • Publication number: 20030215660
    Abstract: A pressure sensitive adhesive composed of a mixture comprising
    Type: Application
    Filed: February 3, 2003
    Publication date: November 20, 2003
    Applicant: tesa AG
    Inventors: Thorsten Krawinkel, Bernd Luhmann, Renke Bargmann
  • Patent number: 6641892
    Abstract: Use of a piece of adhesive film for bonding a) a plate (6) to an article (5) to be mounted or hung up in such a way that the bond can be separated again without damage and without leaving a residue, by means of b) a double-sided adhesive film (1) having a tab (2) which projects from the adhesive join and which can be pulled in the direction of the bond plane to separate the bond, where c) the plate (6) has a device (7) via which mounting or hanging can take place in a manner known per se, and where d) the bonding is hidden to the viewer of the mounted or hung article (5), if appropriate by the article (5) itself.
    Type: Grant
    Filed: April 30, 2001
    Date of Patent: November 4, 2003
    Assignee: tesa AG
    Inventor: Bernd Lühmann
  • Patent number: 6616790
    Abstract: Redetachable, self-adhesive device having a plate, the sides and/or front side of which have fastening means, if appropriate, and the rear side of which has a strip of an adhesive film which is adhesive on both sides and is adhesively attached in such a way that one end of the adhesive film protrudes beyond the plate as a grip, the adhesive film being of such a kind that the adhesive bond achieved with it can be released again by pulling in the direction of the bonding plane, stretching the strip, characterized in that the rear side of the plate (1) has laterally alongside the adhesively attached adhesive film (5) spacers (3A, 3B), the height of which is less than the thickness of the adhesive film (5).
    Type: Grant
    Filed: November 20, 2001
    Date of Patent: September 9, 2003
    Assignee: tesa AG
    Inventors: Bernd Lühmann, Andreas Junghans, Thomas Raadts
  • Publication number: 20030096075
    Abstract: Strippable systems comprising at least one pressure sensitive adhesive based on at least one block copolymer, wherein said at least one block copolymer is based at least in part on (meth)acrylic acid derivatives, the block copolymers containing at least the unit P(A)-P(B)-P(A) composed of at least one polymer block P(B) and at least two polymer blocks P(A), where
    Type: Application
    Filed: February 13, 2002
    Publication date: May 22, 2003
    Inventors: Thilo Dollase, Marc Husemann, Bernd Luhmann
  • Patent number: 6553884
    Abstract: An adhesive tape dispenser for dispensing and cutting a length of an adhesive tape. The adhesive tape dispenser comprises an adhesive tape cutting device. The adhesive tape cutting device comprises a) a resting surface to which a tacky side of said adhesive tape can be adhered while the adhesive tape is being cut, b) two lateral webs extending in the same direction from both edges of the resting surface to serve as guides for the adhesive tape, and c) a cutting blade having a blade edge and positioned on an inner side of one or both lateral webs in such a way that the blade edge is inclined at an angle which is oblique relative to the resting surface. The lateral webs have a height from the resting surface which is the same or is higher than each cutting blade. The adhesive tape dispenser is useful to dispense and cut adhesive tapes comprising a backing of biaxially oriented or highly stretched film, such as polyolefin.
    Type: Grant
    Filed: September 16, 1998
    Date of Patent: April 29, 2003
    Assignee: tesa AG
    Inventors: Bernd Lühmann, Ralf Schliephacke, Jörn Leiber, Andreas Reklau, Hans Hazes, Hansjürgen Linde, Uwe Neumann, Peter Kubasch
  • Patent number: 6544639
    Abstract: Adhesive tape strip for a rereleasable adhesive bond, which can be removed from a bonded joint by pulling in the direction of the bond plane, characterized in that the bonding area decreases in the region of the grip tab or in the pressure-sensitive adhesive region directly bordering the grip tab.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: April 8, 2003
    Assignee: tesa AG
    Inventors: Bernd Lühmann, Thorsten Krawinkel
  • Publication number: 20030054163
    Abstract: A self-adhesive protective sheet for painted surfaces of vehicles, especially automobiles, wherein
    Type: Application
    Filed: February 15, 2002
    Publication date: March 20, 2003
    Inventors: Bernd Luhmann, Nicolai Bohm, Ingolf Schutz, Herbert Sinnen, Ingo Neubert, Bernhard Mussig
  • Publication number: 20020168516
    Abstract: Repeated use of an adhesive-film laminate for bonds which can be redetached without residue by pulling on the laminate in the direction of the bond plane, the laminate employed comprising
    Type: Application
    Filed: April 15, 2002
    Publication date: November 14, 2002
    Inventors: Bernd Luhmann, Reinhard Storbeck, Christian Harder, Stephan Zollner
  • Publication number: 20020112823
    Abstract: A redetachable self-adhesive device
    Type: Application
    Filed: December 11, 2001
    Publication date: August 22, 2002
    Inventors: Achim Franck, Andreas Junghans, Bernd Luhmann, Thorsten Krawinkel
  • Publication number: 20020114911
    Abstract: A redetachable self-adhesive device
    Type: Application
    Filed: November 29, 2001
    Publication date: August 22, 2002
    Inventors: Achim Franck, Andreas Junghans, Bernd Luhmann, Thorsten Krawinkel
  • Patent number: 6402875
    Abstract: Repeated use of an adhesive-film laminate for bonds which can be redetached without residue by pulling on the laminate in the direction of the bond plane, the laminate employed comprising a) an elastic support with a resilience of at least 50% b) coated on at least one side with a solvent or hot-melt pressure-sensitive acrylate adhesive or dispersion pressure-sensitive acrylate adhesive.
    Type: Grant
    Filed: September 24, 1998
    Date of Patent: June 11, 2002
    Assignee: testa AG
    Inventors: Bernd Lühmann, Reinhard Storbeck, Christian Harder, Stephan Zöllner
  • Patent number: 6395389
    Abstract: Adhesive tape strip for a rereleasable adhesive bond, which can be removed from a bonded joint by pulling in the direction of the bond plane, having a nonadhesive grip tab and a subsequent, elongate strip which is adhesive on one or both sides, characterized in that the strip has a width of 2-6 mm and a ratio of width to thickness of less than or equal to 10:1.
    Type: Grant
    Filed: September 9, 1999
    Date of Patent: May 28, 2002
    Assignee: tesa AG
    Inventors: Bernd Lühmann, Thorsten Krawinkel
  • Patent number: 6390411
    Abstract: Core for winding self-adhesively coated materials in web form, wherein the outer contour of the core is formed by at least one substantially round, self-contained segment, the ends of which run together in an edge, with a) the round segment being shaped convexly with respect to the axis of the core, b) the normals to the surface of the round segment being aligned substantially orthogonally with respect to the axis of the core, c) the edge being aligned substantially parallel with respect to the axis of the core and the core having a recess on the inside, so that the roll together with the core can be fitted on commercially available adhesive tape dispensers which have cylindrical core holders.
    Type: Grant
    Filed: September 27, 1999
    Date of Patent: May 21, 2002
    Assignee: Beiersdorf AG
    Inventors: Jan Chal, Hans Hazes, Hansjürgen Linde, Bernd Lühmann, Uwe Neumann, Ralf Schliephacke
  • Publication number: 20020051858
    Abstract: Redetachable, self-adhesive device having a plate, the sides and/or front side of which have fastening means, if appropriate, and the rear side of which has a strip of an adhesive film which is adhesive on both sides and is adhesively attached in such a way that one end of the adhesive film protrudes beyond the plate as a grip, the adhesive film being of such a kind that the adhesive bond achieved with it can be released again by pulling in the direction of the bonding plane, stretching the strip, characterized in that the rear side of the plate (1) has laterally alongside the adhesively attached adhesive film (5) spacers (3A, 3B), the height of which is less than the thickness of the adhesive film
    Type: Application
    Filed: November 20, 2001
    Publication date: May 2, 2002
    Inventors: Bernd Luhmann, Andreas Junghans, Thomas Raadts
  • Publication number: 20020051875
    Abstract: Adhesive tape for a bond which can be redetached by pulling, without residue or damage, having a foam backing coated on one or both sides with a self-adhesive composition, characterized in that
    Type: Application
    Filed: November 20, 2001
    Publication date: May 2, 2002
    Inventors: Bernd Luhmann, Andreas Junghans
  • Patent number: 6372335
    Abstract: Adhesive tape for a bond which can be redetached by pulling, without residue or damage, having a foam backing coated on one or both sides with a self-adhesive composition, characterized in that a) on at least one of the two sides of the foam backing there is applied a self-adhesive composition whose ratio of tear strength to stripping force (peel force) at a peel angle of less than 10° to the bond surface is greater than 1.2:1, and b) the foam backing has a modulus of electricity of less than 16 MPa and a thickness of 200-600 &mgr;m.
    Type: Grant
    Filed: November 24, 1997
    Date of Patent: April 16, 2002
    Assignee: Beiersdorf AG
    Inventors: Bernd Lühmann, Andreas Junghans
  • Publication number: 20020034628
    Abstract: Double-sided adhesive tape (fixer) which can be re-released without residue or destruction for hidden bonding on substrate that are to be bonded, with high peel strength, high shear strength and high tip-shear strength, characterized by
    Type: Application
    Filed: May 6, 1998
    Publication date: March 21, 2002
    Inventors: BERND LUHMANN, ANDREAS JUNGHANS, ULRICH OTTEN
  • Publication number: 20020017359
    Abstract: Use of a piece of adhesive film for bonding
    Type: Application
    Filed: April 30, 2001
    Publication date: February 14, 2002
    Inventor: Bernd Luhmann
  • Patent number: 6335068
    Abstract: Redetachable, self-adhesive device having a plate, the sides and/or front side of which have fastening means, if appropriate, and the rear side of which has a strip of an adhesive film which is adhesive on both sides and is adhesively attached in such a way that one end of the adhesive film protrudes beyond the plate as a grip, the adhesive film being of such a kind that the adhesive bond achieved with it can be released again by pulling in the direction of the bonding plane, stretching the strip, characterized in that the rear side of the plate (1) has laterally alongside the adhesively attached adhesive film (5) spacers (3A, 3B), the height of which is less than the thickness of the adhesive film (5).
    Type: Grant
    Filed: June 8, 2000
    Date of Patent: January 1, 2002
    Assignee: Beiersdorf A.G.
    Inventors: Bernd Lühmann, Andreas Junghans, Thomas Raadts
  • Patent number: 6284378
    Abstract: Adhesive film strip for a temporary bond which can be detached without residue and without damage by pulling in the direction of the bond plane, having a layer structure comprising an elastic backing layer which is provided on one or both sides with an adhesive layer, characterized in that both the backing layer and the adhesive layer(s) comprise styrene block copolymers as base polymers, blended with tackifier resins which are compatible with the elastomer block of the styrene block copolymers used.
    Type: Grant
    Filed: July 1, 1997
    Date of Patent: September 4, 2001
    Assignee: Beiersdorf AG
    Inventors: Andreas Junghans, Bernd Lühmann