Patents Assigned to Volkl Tennis GmbH
  • Patent number: 7229369
    Abstract: In a ball sport racquet, for example, a tennis racquet, made up of a main or racquet head frame, a throat with a throat bridge and side bridges diverging to the throat bridge and extending into a shaft, and strings fastened on the main frame and on the throat bridge, the throat bridge can move restrictedly relative to the main frame at least in one axis direction perpendicular to the plane of the strings and/or can rotate on the racquet frame on an axis extending in the direction of a longitudinal axis of the racquet.
    Type: Grant
    Filed: May 19, 2005
    Date of Patent: June 12, 2007
    Assignee: Volkl Tennis GmbH
    Inventor: Ralf Schwenger
  • Patent number: 7104905
    Abstract: A ball game racket, especially a tennis racket, has a racket head formed by a tension frame with stringing, and a handle unit formed by a handle shaft or a racket neck joining the tension frame for example via a heart piece. Between a frame profile and the support profile a hose or cushion-type element is filled with an attenuating or damping liquid.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: September 12, 2006
    Assignee: Volkl Tennis GmbH
    Inventors: Ralf Schwenger, Udo Münster
  • Patent number: 7007412
    Abstract: The invention relates to a new design for a shoe, especially an athletic shoe, with a sole that cushions mechanical stress while running, with an area with a cushioning effect and at least one further area with an effective transfer of force.
    Type: Grant
    Filed: September 2, 2003
    Date of Patent: March 7, 2006
    Assignee: Volkl Tennis GmbH
    Inventor: Udo Munster
  • Patent number: 6530851
    Abstract: This invention refers to a novel ballgame racket, especially a tennis racket, including a racket head formed by a tension frame with stringing, and also having a grip portion joining the tension frame, for example by means of a crossing and formed by a gripping shaft or a racket neck and a handle. The racket has a mechanism for tensioning the strings which includes a two part tension frame of the racket head. The frame has a closed hollow profile with a second wing like profile in touch with the closed profile with a damping element placed therebetween.
    Type: Grant
    Filed: March 13, 2001
    Date of Patent: March 11, 2003
    Assignee: Volkl Tennis GmbH
    Inventor: Udo Munster
  • Patent number: 6203455
    Abstract: In a ball-game racket, especially a tennis racket, with a racket head formed by a clamping frame with stringing and with a grip shaft that attaches via, for example, a core piece, a damping element is located on the racket that has at least one additional weight and is elastically mounted with gaps between it and all adjacent walls.
    Type: Grant
    Filed: July 29, 1999
    Date of Patent: March 20, 2001
    Assignee: Volkl Tennis GmbH
    Inventor: Franz Scherubl