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Class Information
Number: 175/14
Name: Boring or penetrating the earth > Boring by directly applying heat to fluidize or comminute > Combustion is confined chamber having restricted discharge orifice
Description: Subject matter in which an exothermic chemical reaction is caused to occur in a confined area, and the products of the reaction are discharged through a restriction from said area against the mineral body with jet and/or intensely heated characteristics.










Patents under this class:

Patent Number Title Of Patent Date Issued
7926587 Explosive water jet with precursor bubble Apr. 19, 2011
7828078 System for rapidly boring through materials Nov. 9, 2010
7584807 Multiple pulsejet boring device Sep. 8, 2009
5964303 Process and a device for establishing drilling holes Oct. 12, 1999
5771984 Continuous drilling of vertical boreholes by thermal processes: including rock spallation and fusion Jun. 30, 1998
5497838 Automated rock burner Mar. 12, 1996
5267622 Impact block assembly for percussion drilling apparatus Dec. 7, 1993
5211156 Method and apparatus for treating a surface of granite with a high temperature plasma jet May. 18, 1993
5125828 Granite flame finishing internal burner Jun. 30, 1992
5107937 Automated rock burner Apr. 28, 1992
5088568 Hydro-mechanical device for underground drilling Feb. 18, 1992
5022470 Autonomous rapid thermal ice penetrating method and system Jun. 11, 1991
4923019 Thermochemical penetrator for ice and frozen soils May. 8, 1990
4519453 Ignition system May. 28, 1985
4319647 Flame drill channelling method and apparatus for reducing noise and dust levels Mar. 16, 1982
4301875 Method for making holes and producing gas in coal seams Nov. 24, 1981
4190121 Thermal drilling device Feb. 26, 1980
4099584 Flame jet tool for drilling to great depths Jul. 11, 1978
4076082 Thermal drilling device Feb. 28, 1978
4073351 Burners for flame jet drill Feb. 14, 1978
4066137 Flame jet tool for drilling cross-holes Jan. 3, 1978
3934659 Apparatus for drilling holes in earth surface Jan. 27, 1976











 
 
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