Patents Assigned to fischerwerke, Artur Fischer GmbH & Co. AG
  • Patent number: 5664920
    Abstract: A fixing element has an expansion zone formed by a longitudinal slot having a trapezoidal cross-section and produced by stamping, and an expander member inserted in the longitudinal slot and displaceable therein. On the two sliding surfaces of the longitudinal slot arranged at an angle to one another the expander member rests with its two bearing surfaces, likewise arranged at an angle to one another. The external surface of the expander member provided with teeth of roof-shaped construction projects beyond the shank of the fixing element at least with a part of the height of the teeth. The expander member lying in the longitudinal slot so that it is easily displaceable allows subsequent expansion of the anchored fixing element in the event that the drilled hole widens as a result of cracks forming.
    Type: Grant
    Filed: April 15, 1996
    Date of Patent: September 9, 1997
    Assignee: Fischerwerke, Artur Fischer GmbH & Co. AG
    Inventors: Artur Fischer, Gerhard Porlein, Eberhard Maeder
  • Patent number: 5609453
    Abstract: An expansible plug for anchoring in a drilled hole having an undercut, comprises a threaded bolt having a leading end with an expander cone at the leading end, an expansible sleeve having a leading end and a rear end and provided with a plurality of longitudinal slits starting from the leading end of the expansible sleeve and extending for a part of a length of the expansible sleeve. The expansible sleeve has a cylindrical portion arranged at the leading end of the expansible sleeve, and also an annular groove adjoining the cylindrical portion and tapering toward the rear end of the expansible sleeve. The groove is bounded in a region of the slits by a rounded portion. The expansible sleeve is composed of a fiber-reinforced, high-strength plastic material.
    Type: Grant
    Filed: January 30, 1996
    Date of Patent: March 11, 1997
    Assignee: fischerwerke, Artur Fischer GmbH & Co AG
    Inventor: Artur Fischer
  • Patent number: 5505417
    Abstract: A device for holding a drink container comprises a collapsible supporting ring having a first ring half and a second ring half, horizontally arranged hinges which couples the ring halves with one another so that the ring halves are movable from a vertical collapsed position to a horizontal supporting position in which the supporting ring is completed, pivot guides arranged on both sides of the supporting ring to secure the first ring half during a swivelling movement from the vertical to the horizontal position and vice versa, and guide rails arranged horizontally on both sides of the supporting ring so that the second ring half is mounted in the guide rails and guided while being folded out and up.
    Type: Grant
    Filed: January 20, 1995
    Date of Patent: April 9, 1996
    Assignee: fischerwerke, Artur Fischer GmbH & Co. AG
    Inventor: Bernd Plocher