The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 19, 2018
Filed:
Feb. 20, 2015
Heintzmann Corporation, Cedar Bluff, VA (US);
Abc Industries, Inc., Warsaw, IN (US);
Joseph P. Bower, Morgantown, WV (US);
John J. Breedlove, Cedar Bluff, VA (US);
Erik Denver, Keen Mountain, VA (US);
Steven S. Fleagle, Syracuse, IN (US);
Tyler Proffitt, Pounding Mill, VA (US);
FCI Holdings Delaware, Inc., Wilmington, DE (US);
ABC Industries, Inc., Winona Lake, IN (US);
Abstract
A pumpable mine ventilation stopping wall structure comprised of a pumpable bag having spaced walls of generally parallel nonporous and flexible sheets with the sheets retained in spaced relationship with spaced flexible cross ties. The perimeter of the spaced walls may be closed off with a permeable mesh having a mesh size which will permit restricted flow of cementitious grout therethrough for sealing the wall structure to surrounding rough mine faces. The bag is provided with at least one grout fill port for filling the bag by pumping cementitious grout into the bag.