George M Koumal

US Patent:

52864278, Feb 15, 1994

Filed:

Jan 6, 1993

Appl. No.:

8/001568

Inventors:

George Koumal - Tucson AZ

International Classification:

B28B 114
B28B 150
B28B 710
B28B 1112

US Classification:

264 401

Abstract:

A method of environmental cleanup by producing an autoclaved aerated cement building material (termed AAC) by a process that uses the available silica sand and other raw materials in mine tailings, in particular copper mine tailings from porphyry copper mines. The process minimizes the need for processed silica sand and other raw materials, normally used in the production of the AAC building material. The lightweight AAC building material produced from the mine tailings has excellent thermal insulation properties, sound absorption and other desirable construction qualities comparable to AAC building material produced using processed silica sand, i. e. from non-mine tailings raw material sources. The utilization of the copper mine tailings for producing the AAC building material, not only rids the countryside of the blight of the mountains of mine tailings waste material, but also preserves the natural resources by using the available silica, lime and other contained elements, and further conserves energy because the silica in the mine tailings is already previously ground to the desired gradation by the mining process. Further, since the AAC is a substitute for lumber, the forests as a natural resource, are preserved.

US Patent:

46343180, Jan 6, 1987

Filed:

Nov 23, 1984

Appl. No.:

6/620699

Inventors:

George Koumal - Tucson AZ

International Classification:

E21D 2000

US Classification:

405259

Abstract:

A rock mass reinforcement for use in the mining, civil engineering industry or similar applications for reinforcing the rock mass in the rib and back of an excavation having a plurality of drill holes arranged in a reinforcement drill hole pattern, a continuous cable having one end initially anchored and its other end being free for sequential installation and tensioning at each drill hole of the drill hole pattern in combination with an anchor-pulley assembly for sequentially holding in slidable securement a looped end portion of the continuous cable at each drill hole of the drill hole pattern and a drill hole collar plate assembly having a drill hole collar plug and a plug insert, for sequentially locking applied tension on the continuous cable at each drill hole of the drill hole pattern. The reinforcement when installed in the rock mass results in a homogeneous reinforcement of fractures and joint oriented in multi-directional planes.