Version: 2024.08
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CPC | COOPERATIVE PATENT CLASSIFICATION | |||||||||||||||||||||||||||
| E21D | SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS (soil-conditioning or soil-stabilising materials C09K 17/00; drilling or cutting machines for mining or quarrying E21C; safety devices, transport, rescue, ventilation or drainage E21F) [2018-08] WARNINGS
|
Shafts [2013-01] |
E21D 1/00 | Sinking shafts [2013-01] |
E21D 1/02 | . | by hand [2013-01] |
E21D 1/03 | . | mechanically, {e.g. by loading shovels or loading buckets, scraping devices, conveying screws}(E21D 1/08 takes precedence) [2013-01] |
E21D 1/04 | . . | with grabs {(boring grabs E21D 1/04, E21B 27/00; grab buckets for digging in general E02F 3/47)} [2013-01] |
E21D 1/06 | . . |
E21D 1/08 | . |
E21D 1/10 | . | Preparation of the ground {(for galleries or tunnels E21D 9/001; improving or preserving foundation soil or rock E02D 3/00)} [2013-01] |
E21D 1/105 | . . | {by water level modification} [2013-01] |
E21D 1/12 | . . |
E21D 1/14 | . . . | Freezing apparatus [2013-01] |
E21D 1/16 | . . | by petrification (grouting anchoring-bolts E21D 20/02 {; consolidating foundation soil by placing solidifying or pore-filling substances in the soil E02D 3/12}) [2017-08] |
E21D 3/00 | Raising shafts, i.e. working upwards from the bottom [2013-01] |
E21D 5/00 | Lining shafts; Linings therefor (E21D 11/00 takes precedence {; sinking with simultaneous lowering of the lining E21D 1/08}) [2017-08] |
E21D 5/01 | . | using prefabricated lining lowered into a hole filled with liquid or viscous mass [2013-01] |
E21D 5/012 | . | Use of fluid-tight or anti-friction material on outside of, or between, lining layers [2013-01] |
E21D 5/016 | . | Bearer curbs [2013-01] |
E21D 5/02 | . |
E21D 5/04 | . | with brick, concrete, stone, or similar building materials (E21D 5/01, E21D 5/012, E21D 5/016 take precedence) [2013-01] |
E21D 5/06 | . |
E21D 5/08 | . . | in the form of profiled parts [2013-01] |
E21D 5/10 | . . | in the form of tubbing {or of rings composed of profile elements} [2013-01] |
E21D 5/11 | . | with combinations of different materials, e.g. wood, metal, concrete (E21D 5/01, E21D 5/012, E21D 5/016 take precedence) [2013-01] |
E21D 5/12 | . | Accessories for making shaft linings, e.g. suspended cradles, shutterings [2013-01] |
E21D 7/00 | Shaft equipment, e.g. timbering within the shaft {(lifts in hoistways or mines B66B 15/00 - B66B 19/00)} [2016-05] |
E21D 7/005 | . | {Determination of shaft lining deformation} [2013-01] |
E21D 7/02 | . | Arrangement of guides for cages in shafts; Connection of guides for cages to shaft walls (guideways or guides for elevators B66B 7/02) [2013-01] |
E21D 8/00 |
Tunnels; Galleries; Large underground chambers; Linings therefor (galleries protecting against falling rocks or avalanches E01F 7/04; pressure galleries, galleries specially adapted to house pressure water conduits E02B 9/06; tunnels or galleries specially adapted to house conduits in general E02D 29/10; sewers E03F) [2013-01] |
E21D 9/00 | Tunnels or galleries, with or without linings; Methods or apparatus for making thereof (E02D 29/045, E02D 29/063 take precedence; linings per se E21D 11/00); Layout of tunnels or galleries [2013-01] |
E21D 9/001 | . | {Improving soil or rock, e.g. by freezing; Injections (for sinking shafts E21D 1/10; injection of liquids for binding dust E21F 5/18; improving or preserving foundation soil or rock E02D 3/00; borehole closures, i.e. packers, for use during the injection process E21B 33/12)} [2013-01] |
E21D 9/002 | . . | {Injection methods characterised by the chemical composition used} [2013-01] |
E21D 9/003 | . | {Arrangement of measuring or indicating devices for use during driving of tunnels, e.g. for guiding machines} [2013-01] |
E21D 9/004 | . . | {using light beams for direction or position control} [2013-01] |
E21D 9/005 | . | {by forcing prefabricated elements through the ground, e.g. by pushing lining from an access pit (driving shields E21D 9/06)} [2013-01] |
E21D 9/006 | . |
E21D 9/008 | . | {Driving transverse tunnels starting from existing tunnels} [2016-01] |
E21D 9/01 | . | Methods or apparatus for enlarging or restoring the cross-section of tunnels, e.g. by restoring the floor to its original level [2016-01] |
E21D 9/02 | . | Driving inclined tunnels or galleries [2013-01] |
E21D 9/03 | . | {Driving non-circular tunnels} [2016-01] |
E21D 9/04 | . | Driving tunnels or galleries through loose materials; Apparatus therefor not otherwise provided for {(E21D 9/005, E21D 9/06 take precedence; soil improvement E21D 9/001; provisional protective covers E21D 19/04)} [2013-01] |
E21D 9/06 | . | Making by using a driving shield {, i.e. advanced by pushing means bearing against the already placed lining (pushing prefabricated elements through the ground from an access pit E21D 9/005)} [2017-08] |
E21D 9/0607 | . . | {the shield being provided with devices for lining the tunnel, e.g. shuttering (E21D 9/0873, E21D 9/0879 take precedence; tail sealing means used as end shuttering E21D 9/0635)} [2016-01] |
E21D 9/0609 | . . . | {with means for applying a continuous liner, e.g. sheets of plastics, between the main concrete lining and the rock} [2016-01] |
E21D 9/0621 | . . | {Shield advancing devices} [2013-01] |
E21D 9/0635 | . . | {Tail sealing means, e.g. used as end shuttering} [2013-01] |
E21D 9/0642 | . . | {the shield having means for additional processing at the front end} [2016-01] |
E21D 9/065 | . . . | {with devices for provisionally supporting the front face} [2016-01] |
E21D 9/0657 | . . . | {structurally associated with rock crushers} [2016-01] |
E21D 9/0664 | . . . | {with means for applying a coating layer to the front face, e.g. by spraying} [2016-01] |
E21D 9/0671 | . . . | {with means for consolidating the rock in front of the shield by injection of consolidating substances through boreholes} [2016-01] |
| E21D 9/0678 | . . . | {Adding additives, e.g. chemical compositions, to the slurry or the cuttings} [2016-01] NOTE
|
E21D 9/0685 | . . . . | {Foaming agents} [2016-01] |
E21D 9/0692 | . . | {Cutter drive shields} [2013-01] |
E21D 9/08 | . . | with additional boring or cutting means {other than the conventional cutting edge of the shield} [2013-01] |
E21D 9/087 | . . . | with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines [2016-01] |
E21D 9/0873 | . . . . | {the shield being provided with devices for lining the tunnel, e.g. shuttering} [2016-01] |
E21D 9/0874 | . . . | {with rotary drilling heads having variable diameter} [2016-01] |
E21D 9/0875 | . . . | {with a movable support arm carrying cutting tools for attacking the front face, e.g. a bucket} [2016-01] |
E21D 9/0879 | . . . . | {the shield being provided with devices for lining the tunnel, e.g. shuttering} [2016-01] |
E21D 9/093 | . . | Control of the driving shield {, e.g. of the hydraulic advancing cylinders (arrangement of measuring or indicating devices for use during driving of tunnels E21D 9/003)} [2016-01] |
E21D 9/10 | . | Making by using boring or cutting machines (E21D 9/08 takes precedence; mining picks E21C 35/18) [2013-01] |
E21D 9/1006 | . . | {with rotary cutting tools (for cutting simultaneously the whole cross-section E21D 9/11; drill bits E21B 10/00)} [2013-01] |
E21D 9/1013 | . . . | {on a tool-carrier supported by a movable boom} [2013-01] |
E21D 9/102 | . . . . | {by a longitudinally extending boom being pivotable about a vertical and a transverse axis} [2013-01] |
E21D 9/1026 | . . . . . | {the tool-carrier being rotated about a transverse axis} [2013-01] |
E21D 9/1033 | . . . . | {by a transversely extending boom being pivotable about a longitudinal axis} [2013-01] |
E21D 9/104 | . . . | {Cutting tool fixtures (devices with percussive tools E21D 9/106)} [2013-01] |
E21D 9/1046 | . . . . | {Vibrating} [2013-01] |
E21D 9/1053 | . . | {for making a slit along the perimeter of the tunnel profile, the remaining core being removed subsequently, e.g. by blasting} [2013-01] |
E21D 9/106 | . . | {with percussive tools, e.g. pick-hammers} [2013-01] |
E21D 9/1066 | . . | {with fluid jets (projecting hot gases E21D 9/1073; drilling by liquid or gas jets E21B 7/18; slitting by liquid jets E21C 25/60)} [2013-01] |
E21D 9/1073 | . . | {applying thermal energy, e.g. by projecting flames or hot gases, by laser beams (flame drilling E21B 7/14)} [2013-01] |
E21D 9/108 | . . | {Remote control specially adapted for machines for driving tunnels or galleries (for machines for slitting or completely freeing the mineral E21C 35/24)} [2013-01] |
E21D 9/1086 | . . | {Drives or transmissions specially adapted therefor} [2013-01] |
E21D 9/1093 | . . | {Devices for supporting, advancing or orientating the machine or the tool-carrier (measuring devices for guiding machines E21D 9/003; anchoring in the borehole E21B 4/18)} [2013-01] |
E21D 9/11 | . . | with a rotary drilling-head cutting simultaneously the whole cross-section, i.e. full-face machines [2013-01] |
E21D 9/111 | . . . | {by means of heads or tool-carrying sectors implementing an oscillating rotary motion} [2013-01] |
E21D 9/112 | . . . | {by means of one single rotary head or of concentric rotary heads (E21D 9/111 takes precedence)} [2013-01] |
E21D 9/113 | . . . . | {having a central part for making a pilot tunnel and a follow-up part for enlarging the pilot tunnel (E21D 9/115 takes precedence; similar apparatus for enlarging drilled boreholes E21B 7/28)} [2013-01] |
E21D 9/115 | . . . . | {with cutting tools mounted pivotably or slidable on the head} [2013-01] |
E21D 9/116 | . . . | {by means of non-concentric rotary heads (E21D 9/111 takes precedence)} [2013-01] |
E21D 9/117 | . . . . | {mounted for orientating or sideways shifting relative to the frame} [2013-01] |
E21D 9/118 | . . . . | {with independently driven central head} [2013-01] |
E21D 9/12 | . | Devices for removing or hauling away excavated material or spoil; Working or loading platforms (underground transport E21F 13/00) [2013-01] |
E21D 9/122 | . . | {Working or loading platforms (underground transport E21F 13/00)} [2013-01] |
E21D 9/124 | . . | {Helical conveying means therefor (E21D 9/13 takes precedence)} [2013-01] |
E21D 9/126 | . . | {Loading devices or installations (loading platforms E21D 9/122; soil-shifting machines E02F 3/00)} [2013-01] |
E21D 9/128 | . . . | {Loader-conveyors with gathering arms} [2016-05] |
E21D 9/13 | . . | using hydraulic or pneumatic conveying means [2013-01] |
E21D 9/14 | . | Layout of tunnels or galleries; Constructional features of tunnels or galleries, not otherwise provided for, e.g. portals, day-light attenuation at tunnel openings [2013-01] |
E21D 11/00 | Lining tunnels, galleries or other underground cavities, e.g. large underground chambers; Linings therefor; Making such linings in situ, e.g. by assembling (E21D 15/00 - E21D 23/00 take precedence; specially for shafts E21D 5/00; {driving shields in combination with means for lining the tunnel E21D 9/06}; lining pressure water galleries, linings therefor E02B 9/06) [2016-05] |
E21D 11/003 | . | {Linings or provisions thereon, specially adapted for traffic tunnels, e.g. with built-in cleaning devices (E21D 11/38 takes precedence)} [2013-01] |
E21D 11/006 | . | {Lining anchored in the rock (setting anchoring-bolts E21D 20/00; anchoring-bolts E21D 21/00)} [2013-01] |
E21D 11/02 | . | Lining predominantly with wood [2013-01] |
E21D 11/03 | . . | using timber- setting machines [2013-01] |
E21D 11/04 | . | Lining with building materials (E21D 11/02, E21D 11/14 take precedence {; compositions of mortars, concrete or like building materials C04B; placing filling-up materials in underground workings E21F 15/00}) [2017-08] |
E21D 11/05 | . . | using compressible insertions [2013-01] |
E21D 11/06 | . . | with bricks [2013-01] |
E21D 11/07 | . . . |
E21D 11/08 | . . | with preformed concrete slabs {(backfilling the space between the slabs and the rock E21D 11/105)} [2013-01] |
E21D 11/083 | . . . | {Methods or devices for joining adjacent concrete segments} [2013-01] |
E21D 11/086 | . . . | {Methods of making concrete lining segments} [2016-01] |
E21D 11/10 | . . | with concrete cast in situ; Shuttering {also lost shutterings, e.g. made of blocks, of metal plates} or other equipment adapted therefor [2013-01] |
E21D 11/102 | . . . | {Removable shuttering; Bearing or supporting devices therefor} [2013-01] |
E21D 11/105 | . . . | {Transport or application of concrete specially adapted for the lining of tunnels or galleries (in building E04F 21/08, E04G 21/02); Backfilling the space between main building element and the surrounding rock, e.g. with concrete} [2013-01] |
E21D 11/107 | . . . | {Reinforcing elements therefor; Holders for the reinforcing elements} [2013-01] |
E21D 11/12 | . . | Temporary supports for use during building {(removable shutterings E21D 11/102)}; Accessories {(provisional protective covers E21D 19/04)} [2013-01] |
E21D 11/14 | . | Lining predominantly with metal {(backfilling the space between the lining elements and the rock E21D 11/105)} [2013-01] |
E21D 11/15 | . . | Plate linings; Laggings, i.e. linings designed for holding back formation material or for transmitting the load to main supporting members (insulation E21D 11/38) [2013-01] |
E21D 11/152 | . . . | {Laggings made of grids or nettings} [2013-01] |
E21D 11/155 | . . . | {Laggings made of strips, slats, slabs or sheet piles (longitudinal struts for mine arches E21D 11/28)} [2013-01] |
E21D 11/157 | . . . | {Laggings making use of fluid cushions, e.g. the fluid containing a hardenable material (chocks made of flexible containers E21D 15/483)} [2013-01] |
E21D 11/18 | . . | Arch members {; Network made of arch members (E21D 11/36 takes precedence); Ring elements; Polygon elements; Polygon elements inside arches (caps for arches E21D 17/00)} [2017-08] |
E21D 11/183 | . . . | {Supporting means for arch members, not provided for in E21D 11/22} [2013-01] |
E21D 11/186 | . . . | {Pre-stressing or dismantling devices therefor} [2013-01] |
E21D 11/20 | . . . |
E21D 11/22 | . . . | Clamps or other yieldable means for interconnecting adjacent arch members either rigidly, or allowing arch member parts to slide when subjected to excessive pressure [2013-01] |
E21D 11/24 | . . . | Knuckle joints or links between arch members [2013-01] |
E21D 11/26 | . . . | Shoes for connecting arch members to longitudinal struts [2013-01] |
E21D 11/28 | . . | Longitudinal struts {, i.e. longitudinal connections between adjoining arches} [2017-08] |
E21D 11/30 | . . |
E21D 11/34 | . . | Joints between vertical props and horizontal top bars (end caps forming part of the props E21D 15/54 {; retaining plates on caps for engaging the tops of pit-props E21D 17/10}) [2017-08] |
E21D 11/36 | . . | Linings or supports specially shaped for tunnels or galleries of irregular cross-section [2013-01] |
E21D 11/362 | . . . | {for loading areas (lining shafts E21D 5/00)} [2013-01] |
E21D 11/365 | . . . | {for intersecting galleries} [2013-01] |
E21D 11/367 | . . . | {for junction with the longwall coal face (walking supports therefor E21D 23/0091)} [2013-01] |
E21D 11/38 | . | Waterproofing (in general E02D 31/00); Heat insulating; Soundproofing; Electric insulating (for building constructions in general E04B 1/62) [2013-01] |
E21D 11/381 | . . | {Setting apparatus or devices} [2013-01] |
E21D 11/383 | . . | {by applying waterproof flexible sheets; Means for fixing the sheets to the tunnel or cavity wall} [2013-01] |
E21D 11/385 | . . | {Sealing means positioned between adjacent lining members (for joints in foundation structures E02D 29/16; for sewers E03F 3/04; for building structures in general E04B 1/68)} [2013-01] |
E21D 11/386 | . . . | {inflatable sealing means} [2016-01] |
E21D 11/388 | . . . | {having longitudinal cavities communicating with the exterior on the outer side of the lining elements} [2016-01] |
E21D 11/40 | . | Devices or apparatus specially adapted for handling or placing units of linings {or supporting units} for tunnels or galleries {(combined with tunnelling shields E21D 9/06)} [2013-01] |
E21D 11/403 | . . | {combined with the head machine} [2013-01] |
E21D 11/406 | . . | {Placing endless lining elements, e.g. from reels (in combination with a tunneling shield E21D 9/0609)} [2016-01] |
E21D 13/00 |
Working-face supports [2013-01] |
E21D 15/00 | Props (in the building art E04G 25/00); Chocks {, e.g. made of flexible containers filled with backfilling material} [2017-08] |
E21D 15/002 | . | {Auxiliary devices in which the prop type is not essential (setting or withdrawing props or chocks E21D 15/58, E21D 15/60)} [2013-01] |
E21D 15/005 | . | {characterised by the material} [2013-01] |
E21D 15/007 | . . | {spark-reducing} [2013-01] |
E21D 15/02 | . | Non-telescopic props [2013-01] |
E21D 15/04 | . . | with wooden prop parts joined by double conical connectors [2013-01] |
E21D 15/06 | . . | with parts joined by a lock, with or without slight axial adjustability [2013-01] |
E21D 15/08 | . . . | with toggle joint connection [2013-01] |
E21D 15/10 | . . . | with dog-clutch or pin-and-hole connection [2013-01] |
E21D 15/12 | . . . | with locking devices located near head or foot {(E21D 15/08 and E21D 15/10 take precedence)} [2013-01] |
E21D 15/14 | . |
E21D 15/15 | . . | Means counteracting entry of dirt; Built-in cleaning devices [2013-01] |
E21D 15/155 | . . . | {Built-in cleaning devices} [2013-01] |
E21D 15/16 | . . | with parts held together by positive means, with or without relative sliding movement when the prop is subject to excessive pressure [2013-01] |
E21D 15/18 | . . . | with one part resting on a supporting medium, e.g. rubber, sand, bitumen, lead, located in the other part, with or without expulsion or displacement of the medium upon excessive pressure {(clamping pressure between telescopic prop elements by means of granular material E21D 15/303)} [2013-01] |
E21D 15/20 | . . . | with pawl, pin, cross-piece, or the like engaging with ratchet teeth, notches, holes, or the like, spaced apart at intervals [2013-01] |
E21D 15/22 | . . . | with member, pin, cross- piece, or the like, ruptured, sheared through, or permanently deformed upon excessive pressure [2013-01] |
E21D 15/24 | . . . | with axial screw-and-nut, rack-and-worm, or like mechanism [2013-01] |
E21D 15/26 | . . . . | with screw, worm, or the like, not self-locking but normally prevented from rotation by friction members which slip upon excessive pressure [2013-01] |
E21D 15/28 | . . | with parts held relatively to each other by friction or gripping [2013-01] |
E21D 15/285 | . . . | {by means of wedges or wedge combinations (details of wedges E21D 15/43)} [2013-01] |
E21D 15/30 | . . . | by means expanded or contracted by pressure applied through the medium of a fluid or quasi- fluid, e.g. rubber {(setting props E21D 15/588, E21D 15/589)} [2013-01] |
E21D 15/303 | . . . . | {by means of granular material (supporting by means of granular material E21D 15/18)} [2013-01] |
E21D 15/306 | . . . . | {by means of a liquid} [2013-01] |
E21D 15/32 | . . . | by a deformable collar {or clamping means applied symmetrically inside a locking ring} [2013-01] |
E21D 15/325 | . . . . | {by a clamping ring} [2013-01] |
E21D 15/34 | . . . | by axially- moving balls, rollers, or the like [2013-01] |
E21D 15/36 | . . . | by a tiltable collar surrounding one or both parts [2013-01] |
E21D 15/38 | . . . | with longitudinally-divided upper or lower prop parts, e.g. interfitting laminations [2013-01] |
E21D 15/40 | . . . | Collar or other support gripped to one or both parts by toggle-action, cam, or other member pivoted or similarly mounted [2013-01] |
E21D 15/42 | . . . | with special parts to influence the friction [2013-01] |
E21D 15/43 | . . . |
E21D 15/435 | . . . . | {hydraulic} [2013-01] |
E21D 15/44 | . . |
E21D 15/445 | . . . | {comprising a fluid cushion} [2013-01] |
E21D 15/45 | . . . | having closed fluid system, e.g. with built-in pumps or accumulators [2013-01] |
E21D 15/46 | . . | with load-measuring devices; with alarm devices [2013-01] |
E21D 15/465 | . . . | {with essential hydraulic or pneumatic details} [2013-01] |
E21D 15/48 | . | Chocks or the like [2013-01] |
E21D 15/483 | . . | {made of flexible containers, e.g. inflatable, with or without reinforcement, e.g. filled with water, backfilling material or the like (laggings making use of fluid cushions E21D 11/157)} [2013-01] |
E21D 15/486 | . . | {with essential hydraulic or pneumatic details} [2013-01] |
E21D 15/50 | . |
E21D 15/502 | . . | Prop bodies characterised by their shape, e.g. of specified cross-section [2013-01] |
E21D 15/51 | . . | specially adapted to hydraulic, pneumatic, or hydraulic-pneumatic props, e.g. arrangements of relief valves {(not used, see subgroups and E21D 15/44)} [2013-01] |
E21D 15/512 | . . . | {Arrangement of valves (external control of roof support installations E21D 23/12, E21D 23/26)} [2013-01] |
E21D 15/515 | . . . | {Particular fluids not covered by any chemical subdivision} [2013-01] |
E21D 15/517 | . . . | {Extension elements} [2013-01] |
E21D 15/52 | . . | Extensible units located above or below standard props (for allowing step-by-step movement of cap E21D 23/06; setting props or chocks E21D 15/58) [2015-07] |
E21D 15/523 | . . . | {with hydraulic or pneumatic control} [2013-01] |
E21D 15/526 | . . . | {for step-by-step extension of the prop} [2013-01] |
E21D 15/54 | . . |
E21D 15/545 | . . . | {hydraulic or pneumatic} [2013-01] |
E21D 15/55 | . . . | of prop heads {or feet} [2013-01] |
E21D 15/56 | . . | Details of locks of telescopic props [2013-01] |
E21D 15/563 | . . . | {by which a series of similarly shaped props can obtain an almost equal load-capacity (setting props or chocks E21D 15/584, E21D 15/589)} [2013-01] |
E21D 15/566 | . . . | {comprising a fluid cushion} [2013-01] |
E21D 15/58 | . | Devices for setting props or chocks [2013-01] |
E21D 15/581 | . . | {in which the props are pre- loaded (extensible elements at strut extremities E21D 15/52)} [2013-01] |
E21D 15/5813 | . . . | {by means of power accumulators to be pre-charged by rock pressure (by means of hydraulically operated devices E21D 15/587)} [2016-01] |
E21D 15/5817 | . . . | {in which the lock is also activated} [2016-01] |
E21D 15/584 | . . | {in which a series of similarly shaped props obtain an almost equal load capacity by removable devices (idem for extensible props E21D 15/563)} [2013-01] |
E21D 15/585 | . . | {by means of hydraulically operated devices for mechanical props, or hydraulic props in which the hydraulic part is not important (hydraulic props in which the hydraulic part is important E21D 15/44)} [2013-01] |
E21D 15/586 | . . . | {the props being pre-loaded} [2013-01] |
E21D 15/587 | . . . . | {by means of power accumulators to be pre-charged by rock pressure} [2013-01] |
E21D 15/588 | . . . . | {the lock also being activated} [2013-01] |
E21D 15/589 | . . . | {in which a series of similarly shaped props are given almost equal load capacity by removable devices} [2013-01] |
E21D 15/60 | . | Devices for withdrawing props or chocks [2013-01] |
E21D 15/603 | . . | {by means of hydraulic devices} [2013-01] |
E21D 15/606 | . . | {the props being moved systematically (mine roof supports for step-by-step movement E21D 23/00)} [2013-01] |
E21D 17/00 | Caps for supporting mine roofs [2013-01] |
E21D 17/003 | . | {with essential hydraulic elements} [2013-01] |
E21D 17/006 | . | {characterised by the material} [2013-01] |
E21D 17/01 | . | characterised by the shape of the cap, e.g. of specified cross-section [2013-01] |
E21D 17/02 | . | Cantilever extension or similar protecting devices [2013-01] |
E21D 17/0206 | . . | {Hydraulically operated extension devices} [2013-01] |
E21D 17/0213 | . . | {Assembling devices for pivoting caps upwardly} [2013-01] |
E21D 17/03 | . . | Brackets for roof-supporting bars [2013-01] |
E21D 17/04 | . . | for use in longwall working [2013-01] |
E21D 17/06 | . . | for use in drifting galleries [2013-01] |
E21D 17/08 | . . | Cap joints for obtaining a coal-face free of pit-props [2013-01] |
E21D 17/082 | . . . | of sliding type [2013-01] |
E21D 17/086 | . . . | or articulated type [2013-01] |
E21D 17/10 | . | Details of mine caps for engaging the tops of pit-props, with or without retaining-plates; Retaining-plates [2013-01] |
E21D 19/00 |
E21D 19/02 | . | for use in longwall working [2013-01] |
E21D 19/04 | . | for use in drifting galleries [2013-01] |
E21D 20/00 | Setting anchoring-bolts (anchoring bolts for shafts, tunnels or galleries E21D 21/00; means for anchoring structural elements or bulkheads specially adapted to foundation engineering E02D 5/74; dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose F16B 13/00) [2013-01] |
E21D 20/003 | . | {Machines for drilling anchor holes and setting anchor bolts} [2013-01] |
E21D 20/006 | . . | {having magazines for storing and feeding anchoring-bolts (combined feeding from racks and connecting of drill rods or the like E21B 19/20)} [2013-01] |
E21D 20/02 | . | with provisions for grouting [2013-01] |
E21D 20/021 | . . | {Grouting with inorganic components, e.g. cement} [2013-01] |
E21D 20/023 | . . . | {Cartridges; Grouting charges} [2013-01] |
E21D 20/025 | . . | {Grouting with organic components, e.g. resin} [2013-01] |
E21D 20/026 | . . . | {Cartridges; Grouting charges} [2013-01] |
E21D 20/028 | . . | {Devices or accesories for injecting a grouting liquid in a bore-hole (E21D 20/003 takes precedence; improving soil or rock by injections E21D 9/001)} [2013-01] |
E21D 21/00 | Anchoring-bolts for roof, floor {in galleries or longwall working}, or shaft-lining protection ({ground anchors E02D 5/80; anchorings for building constructions E04B 1/41, E21D 21/00}; dowels or other devices fastened in walls or the like by inserting them in holes made therein for that purpose F16B 13/00 {; bolts with visible load G01L 1/00}) [2017-08] |
E21D 21/0006 | . | {characterised by the bolt material} [2013-01] |
E21D 21/0013 | . | {Protection against corrosion} [2013-01] |
E21D 21/002 | . | {using explosives charges} [2013-01] |
E21D 21/0026 | . | {characterised by constructional features of the bolts} [2013-01] |
E21D 21/0033 | . . | {having a jacket or outer tube} [2013-01] |
E21D 21/004 | . . | {Bolts held in the borehole by friction all along their length, without additional fixing means} [2013-01] |
E21D 21/0046 | . . | {formed by a plurality of elements arranged longitudinally} [2013-01] |
E21D 21/0053 | . . | {Anchoring-bolts in the form of lost drilling rods} [2016-01] |
E21D 21/006 | . . | {Anchoring-bolts made of cables or wires} [2016-01] |
E21D 21/0066 | . . | {Anchoring-bolts formed by a bundle of radially arranged rigid elements} [2016-01] |
E21D 21/0073 | . . | {Anchoring-bolts having an inflatable sleeve, e.g. hollow sleeve expanded by a fluid} [2016-01] |
E21D 21/008 | . | {Anchoring or tensioning means} [2013-01] |
E21D 21/0086 | . | {Bearing plates} [2013-01] |
E21D 21/0093 | . | {Accessories} [2013-01] |
E21D 21/02 | . | having means for indicating tension (screwed connections specially modified for indicating tensile load F16B 31/02) [2013-01] |
E21D 23/00 | Mine roof supports for step- by- step movement, e.g. in combination with provisions for shifting of conveyors, mining machines, or guides therefor ({transport of mine roof support units E21F 13/008; } shifting of mine conveyors at the working face E21F 13/08) [2016-05] |
E21D 23/0004 | . | {along the working face} [2013-01] |
E21D 23/0008 | . . | {comprising a pair of joined struts} [2013-01] |
E21D 23/0013 | . . | {Frame type supports} [2013-01] |
E21D 23/0017 | . . | {Pile type supports} [2013-01] |
E21D 23/0021 | . . . | {comprising two walking elements} [2013-01] |
E21D 23/0026 | . . . | {comprising three walking elements} [2013-01] |
E21D 23/003 | . . . | {consisting of a rigid pile} [2013-01] |
E21D 23/0034 | . . | {comprising a goaf shield articulated to a base member} [2013-01] |
E21D 23/0039 | . . . | {and supported by a strut or by a row of struts parallel to the working face} [2013-01] |
E21D 23/0043 | . . . | {and supported by two or more rows of struts parallel to the working face} [2013-01] |
E21D 23/0047 | . | {without essential shifting devices} [2013-01] |
E21D 23/0052 | . | {with advancing shifting devices connected therewith} [2013-01] |
E21D 23/0056 | . | {with individual advancing shifting devices} [2013-01] |
E21D 23/006 | . | {provided with essential hydraulic devices} [2013-01] |
E21D 23/0065 | . . | {driven, or automatically, e.g. electrically-hydraulically controlled} [2013-01] |
E21D 23/0069 | . . | {without essential advancing shifting devices} [2013-01] |
E21D 23/0073 | . . | {with advancing shifting devices connected therewith} [2013-01] |
E21D 23/0078 | . . | {with individual shifting devices} [2013-01] |
E21D 23/0082 | . | {specially adapted for vertical or steep gradient seams} [2013-01] |
E21D 23/0086 | . | {in galleries} [2013-01] |
E21D 23/0091 | . . | {at the junction with the working face} [2013-01] |
E21D 23/0095 | . . | {Temporary supports at the driving front} [2013-01] |
E21D 23/03 | . | having protective means, e.g. shields, for preventing or impeding entry of loose material into the working space or support [2013-01] |
E21D 23/04 | . | Structural features of the supporting construction, e.g. linking members between adjacent frames or sets of props; Means for counteracting lateral sliding on inclined floor (E21D 23/14 takes precedence) [2013-01] |
E21D 23/0409 | . . | {Aligning or guiding means for the supports or for the constitutive parts of the supports} [2013-01] |
E21D 23/0418 | . . | {Positioning devices and stabilizing means for the props} [2013-01] |
E21D 23/0427 | . . | {Shield operating devices; Hinges therefor} [2013-01] |
E21D 23/0436 | . . | {Means for inclining the base member of the support} [2013-01] |
E21D 23/0445 | . . | {Extensions of the base member supporting the conveyor} [2016-05] |
E21D 23/0454 | . . | {Trailing plates; Coal face or goaf side sprags (specially adapted for the placing of filling-up materials E21D 23/0481)} [2013-01] |
E21D 23/0463 | . . | {Hanging or shifting means for tubes, electric feeding cables or the like} [2013-01] |
E21D 23/0472 | . . | {Supports specially adapted for people walking or transporting material} [2013-01] |
E21D 23/0481 | . . | {Supports specially adapted for use in combination with the placing of filling-up materials (placing filling-up materials in underground workings per se E21F 15/00)} [2020-05] |
E21D 23/049 | . . | {Connecting devices between the head or foot of a prop and the cap or base of the roof support} [2013-01] |
E21D 23/06 | . . | Special mine caps or special tops of pit-props for permitting step-by-step movement [2013-01] |
E21D 23/063 | . . . | {Retractable cantilever extensions therefor} [2013-01] |
E21D 23/066 | . . . | {Pivoted cantilever extensions therefor} [2013-01] |
E21D 23/08 | . |
E21D 23/081 | . . | {forming parts of the roof supports} [2013-01] |
E21D 23/082 | . . . | {acting solely on the elements of the supports} [2013-01] |
E21D 23/083 | . . . | {acting on a firm abutment adapted thereto} [2013-01] |
E21D 23/085 | . . . | {acting on a conveyor or a guide for the mining machine} [2016-05] |
E21D 23/086 | . . . . | {Details of fixing devices therefor} [2013-01] |
E21D 23/087 | . . . | {acting directly on the walls of the seam} [2013-01] |
E21D 23/088 | . . . . | {by means of wheels, rollers, caterpillars, belts or worm screws} [2013-01] |
E21D 23/10 | . . | with advancing devices separate from the supporting construction [2013-01] |
E21D 23/12 | . |
E21D 23/14 | . . | Effecting automatic sequential movement of supports, e.g. one behind the other {(advancing of mining machines toward the working face E21C 29/02; advancing of conveyors toward the working face E21D 23/085)} [2016-05] |
E21D 23/142 | . . . | {Measuring the advance of support units with respect to external points of reference} [2016-01] |
E21D 23/144 | . . . | {Measuring the advance of support units with respect to internal points of reference, e.g. with respect to neighboring support units or extension of a cylinder} [2016-01] |
E21D 23/146 | . . . | {Transmission of signals and commands by cable} [2016-01] |
E21D 23/148 | . . . | {Wireless transmission of signals or commands} [2016-01] |
E21D 23/16 | . | Hydraulic or pneumatic features, e.g. circuits, arrangement or adaptation of valves, setting or retracting devices [2013-01] |
E21D 23/18 | . . | of advancing mechanisms [2013-01] |
E21D 23/20 | . . . | for sequential movement, e.g. one behind the other [2013-01] |
E21D 23/22 | . . . | incorporated in mine caps [2013-01] |
E21D 23/24 | . . . | the advancing mechanisms being separate from the supporting construction [2013-01] |
E21D 23/26 | . . | Hydraulic or pneumatic control [2013-01] |