Patents by Inventor Markus Dubberke

Markus Dubberke 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: 6502286
    Abstract: A device (1) for securing end portions (4) of ribbon (3), including a base (6), having at least two openings (17), a cap (5), including at least two openings (11), wherein cap (5) and base (6) are rotatable relative to one another wherein openings (17) cooperate with two openings (11) such that opposite ends (4) of ribbon (3) are guided through respective pairs of cooperating openings (11, 17), and ends (4) can be wound up, characterized in that in the spacing between first flat structure (12) and second flat structure (7) a separate hub element (23) includes teeth (14) staggered to be positioned on the gaps relative to one another, wherein teeth (14) form a v-shaped groove (25), which is interrupted by alternatingly staggered gaps and tapers toward the interior of the hub element (23).
    Type: Grant
    Filed: January 12, 2001
    Date of Patent: January 7, 2003
    Inventor: Markus Dubberke
  • Patent number: 5315741
    Abstract: A snap fastener for securing shoe laces comprises two openings disposed diametrically to each other through which the shoe laces are passed. The openings extend longitudinally through the snap fastener when the latter is opened. An inner sleeve is in a larger outer sleeve such that it is longitudinally movable relative thereto. The inner sleeve accommodates an inner ring. When the pressure is exerted on the outer sleeve, the ring is made to rotate as the longitudinal movement is converted into a horizontal circular movement so that the shoe laces are immovably clamped by the snap fastener.
    Type: Grant
    Filed: September 2, 1993
    Date of Patent: May 31, 1994
    Assignee: Nicole Durr GmbH
    Inventor: Markus Dubberke