Patent Number: 6,250,849

Title: Interconnected cribbing system

Abstract: A cribbing system for supporting a mine roof or the like includes a multi-sided column. Each column is formed of a stack of cribbing elements with each cribbing element having upper and lower surfaces wherein substantially the entire upper and lower surface of each cribbing element is a bearing surface for transmitting a substantially vertical load to a vertically adjacent cribbing element of one stack. Each cribbing element is interconnected with at least one cribbing element of an adjacent side. The interconnection between interconnected cribbing elements is formed by a slot extending through one of the interconnected cribbing elements in the direction of the column and a matching projection on at least the other interconnected cribbing elements, with each projection extending in the direction of the column for the height of the cribbing element. The cribbing system may be a wooden cribbing system having two distinctly different sets of cribbing elements.

Inventors: Marianski; James E. (Bristol, TN), Marianski; Andrew J. (Bristol, TN)

Assignee: American Commercial Inc.

International Classification: E21D 15/48 (20060101); E21D 15/00 (20060101); E05D 017/00 ()

Expiration Date: 06/26/2018