Invention Grant
US08875471B2 Method and apparatus for lifting and leveling a concrete panel 有权
一种用于提升和调平混凝土面板的方法和装置

  • Patent Title: Method and apparatus for lifting and leveling a concrete panel
  • Patent Title (中): 一种用于提升和调平混凝土面板的方法和装置
  • Application No.: US13594604
    Application Date: 2012-08-24
  • Publication No.: US08875471B2
    Publication Date: 2014-11-04
  • Inventor: Baltazar Siqueiros
  • Applicant: Baltazar Siqueiros
  • Agent Morland C. Fischer
  • Main IPC: E04G21/14
  • IPC: E04G21/14 B66C1/66 E04B1/41
Method and apparatus for lifting and leveling a concrete panel
Abstract:
A lifting apparatus to be embedded within a precast concrete panel or slab to enable the panel to be lifted, positioned atop a road bed, and elevated above the road bed. A lifting apparatus is located at each corner of the panel. Each lifting apparatus has a threaded sleeve extending through the panel to receive a removable threaded lifting bolt by which to establish a lifting point at which a lifting force is applied to lift and position the panel. When the threaded lifting bolt is rotated completely through the threaded sleeve, a pushing force is applied against a base plate, whereby to elevate the panel above the road bed as is necessary to make the panel level with adjacent panels during the construction or repair of a roadway. Grout is pumped through the panel to fill the space between the panel and the road bed.
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