Reverse Drawing Patents (Class 72/708)
  • Patent number: 6085568
    Abstract: The invention is an adjustable force deflection device which can be used to guide, deflect, and apply force used in the restoration of deformed vehicle bodies on work benches or straighteners. The device consists of at least two fixable, pivoted joints, each comprising a pair of coupling discs that can be independently rotated about a common central axis to a desired angle relative to each other and then fixed in place. One of the coupling discs in each of the at least two pivotable joints is connected to either a separate force application device or to a tool attached to the portion of the vehicle body to be restored. The second of the coupling discs in each pair is connected to at least one rigid, elongated element of various possible sizes and shapes, or to a plurality of such rigid, elongated elements and interconnecting pivotable joints connected in alternating series.
    Type: Grant
    Filed: October 5, 1998
    Date of Patent: July 11, 2000
    Inventor: Herbert Meyer
  • Patent number: 5271258
    Abstract: A core cap is formed from a one-piece sheet metal blank in which an inner cylindrical sleeve is formed and a reverse-fold outer sleeve determining a bight therebetween, and a recess is gradually formed by stamping in the bight and the inner sleeve so as to provide a keyway with parallel side walls symmetrically parallel with the axis of the inner sleeve.
    Type: Grant
    Filed: March 23, 1992
    Date of Patent: December 21, 1993
    Assignee: SLM Canada Inc.
    Inventors: Real Bernier, Rosaire Michel
  • Patent number: 4826382
    Abstract: A method of forming a container body having a profiled bottom in a continuous operation wherein the body is formed from a blank of material into an inverted cup, the cup is reverse drawn and a preliminary profile is imparted to the bottom of the cup, and a final profile is imparted. The apparatus includes a die cut edge movable into telescoping relationship around a redraw die to form the inverted cup and a profile punch movable into telescoping relationship within the redraw die to form the preliminary profile against a profile pad. The profile pad is selectively supported by a pair of fluidly actuated pistons whereby, upon activation of the second piston, the final profile may be formed.
    Type: Grant
    Filed: January 11, 1988
    Date of Patent: May 2, 1989
    Assignee: Redicon Corporation
    Inventors: Joseph D. Bulso, Jr., James A. McClung