Abc Industries, Inc.

Heintzmann Corporation

Other

Fci Holdings Delaware, Inc.

Joseph P Bower

Steven S Fleagle

John J Breedlove

Erik Denver

Tyler Proffitt

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.

Pumpable mine ventilation structure

A system for the manufacture, storage and transportation of hydrogen and oxygen gas wherein deep sealed production chambers () capable of withstanding high pressures are provided and water is fed by gravity from a water source to the bottom of the deep sealed production chamber () thereby producing water() in the bottom of the production chamber () under substantial pressure. Hydrogen and oxygen gas are produced in the water at the bottom of the production chamber () with electrolysis and the produced oxygen is captured in an oxygen escape pipe () extending from the bottom of the production chamber () to the exterior () of the production chamber (), the oxygen escape pipe () containing a positive anode electrode () for the electrolysis in the bottom end of the oxygen pipe. The hydrogen gas is collected under pressure at the upper storage area () of the production chamber ().

System and method for the manufacture, storage and transportation of hydrogen and oxygen gas

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 are 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.

A pumpable inflatable crib bag assembly for supporting a mine roof which includes a generally cylindrical bag having top and bottom ends for retaining and confining a liquid settable grout to be pumped into the bag. The bag further includes an inner generally cylindrical mesh reinforcement disposed within and generally coextending with the bag. This generally cylindrical mesh reinforcement is spaced from an inner wall of the bag and is permeable to the liquid settable grout whereby the liquid settable grout may be pumped through a fill port into the bag to thereby fill the bag and encapsulate the mesh reinforcement. The liquid settable grout is pumped through a fill port which is adjacent the top end of the bag.

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Morgantown, WV, United States of America

Joseph P Bower