Selective mining from horizontal holes
Patent 4496191 Issued on January 29, 1985. Estimated Expiration Date: 
September 1, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
September 1, 2002. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent References 3022986 3900226 Hydraulic mining from tunnel by reciprocated pipes Retrogressively in-situ ore body chemical mining system and method Patent #: 4221433 InventorsApplicationNo. 06/413653 filed on 09/01/1982US Classes:299/17, Jetting (e.g., hydraulic mining)166/50, WELLS WITH LATERAL CONDUITS299/19MINE LAYOUTSExaminersPrimary: Suchfield, George A.Assistant: Starinsky, Michael Attorney, Agent or FirmInternational ClassesE21C 41/16 (20060101)E21C 37/12 (20060101) E21C 37/00 (20060101) E21C 41/00 (20060101) AbstractA method for mining high grade ore from an ore body uses a near horizontal hole. The horizontal hole is bored into the ore body through as many of the high grade portions as possible. A jet mining tool is inserted into the hole to the high grade portion farthest from the tool insertion location and that portion of the high grade ore is removed. The tool is then pulled out of the hole until the jets are in a high grade portion which is adjacent the high grade portion previously mined and this portion is then jet mined. The process is repeated until all of the high grade portions of the ore body have been mined. The mined material is removed through the horizontally bored hole. | |
