Patents Represented by Attorney David Zingerman
  • Patent number: 6981824
    Abstract: A sling-traverse device for lifting system for elevation of the massive objects (constructions) provides a possibility to lift the solid over size and over weight objects. An improved sling-traverse device for massive construction lifting system includes an arched form traverse, a traverse connector, comprising a traverse flange, a lower portion of which is by a traverse hinge coupled with the traverse, and a sling flange, an upper portion of which is intended for coupling with the lifting system, and the opposite sides of the traverse flange and the sling flange are rigidly connected to each other. The traverse includes two pairs of levers on each of side of the arch, and each two appropriate levers are coupled to each other by the stiffener and resting girder in their frontal lower part. Also the improved sling-traverse device includes a pushing spiral springs with a directional fingers respectively coupled with the appropriate brackets connected to the appropriate shackles and levers.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: January 3, 2006
    Inventor: David Zingerman
  • Patent number: 6808338
    Abstract: The method and system for lifting of the massive constructions provide a possibility to lift the assembled at the ground level over size and over weight objects, such as a sport arena roof with the attached columns and/or bridge section with the attached piers. An improved method for massive constructions lifting includes steps providing lifting process by at least two of a plurality of lifting supports, each of which is formed by two vertically positioned H-girders connected by their lower parts to the supporting base and coupled each to the other along their length by a plurality of strengthening (stiffening) girders. Each support includes a sling-traverse, comprising a pivoting stand, a lifting tape, the rests, and the lifting device, including the hydraulic jacks.
    Type: Grant
    Filed: March 4, 2003
    Date of Patent: October 26, 2004
    Inventor: David Zingerman