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Mining or in situ disintegration of hard material

Patent class list (only not empty are listed)

Deeper subclasses:

Class / Patent application numberDescriptionNumber of patent applications / Date published
299790100 CUTTER TOOTH OR TOOTH HEAD 139
299029000 HARD MATERIAL DISINTEGRATING MACHINES 109
299010000 PROCESSES 96
299100050 AUTOMATIC CONTROL; SIGNALING OR INDICATING 58
299003000 IN SITU CONVERSION OF SOLID TO FLUID 18
299007000 WITH SEPARATION OF MATERIALS 6
299020000 EXPANSIBLE BREAKING-DOWN DEVICES 2
20090218877DEVICE FOR BREAKING SOLID MATERIAL AND METHOD OF MANUFACTURING A HOSE ELEMENT FOR SUCH A DEVICE - A device for breaking solid material comprises an expansible hose element which is insertable into a hole in the solid material and has an externally substantially geometrically regular cross-section. At least at one of its ends, the hose element comprises a coupling. The device further comprises at least one expansion portion with an expansion chamber. The hose element further comprises an expansion limiter which has a varying radial distance from the outside of the hose element along the circumferential direction of the hose element.09-03-2009
20120091783EXPANSION DEVICE FOR BREAKING SOLID MATERIAL, USE OF THE DEVICE AND METHOD FOR PRODUCING IT - An expansion device for breaking solid materials, including at least one hose element having an inner expansion chamber with a non-circular cross section before pressurization or having an inner pressuring means and/or a reinforcement arranged on the outside of the inner expansion chamber which has a non-circular cross section before pressurization. The inner pressuring means is arranged around the inner expansion chamber and the reinforcement is arranged around the inner pressuring means. Optionally an outer layer is arranged around the reinforcement, having at least one “directional-breaking-force amending” material portion which is arranged outside the reinforcement. The at least one hose element has a coupling connection on a first end of the hose element, and optionally a second coupling connection on a second end of the hose element.04-19-2012

Patent applications in class Mining or in situ disintegration of hard material

Patent applications in all subclasses Mining or in situ disintegration of hard material