E21D

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Description

SHAFTS; TUNNELS; GALLERIES; LARGE UNDERGROUND CHAMBERS (soil-conditioning or soil-stabilising materials C09K 17/00; cutting machines for mining or quarrying E21C; safety devices, transport, rescue, ventilation or drainage E21F)

Subclasses

Not Available
Subclass Title
1/00 Sinking shafts
1/02 Sinking shafts by hand
1/03 Sinking shafts mechanically (E21D 1/08 takes precedence)
1/04 Sinking shafts mechanically (E21D 1/08 takes precedence) with grabs
1/06 Sinking shafts mechanically (E21D 1/08 takes precedence) with shaft-boring cutters (drilling machines E21B)

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Recent Patents

Not Available
Patent #TitleFiling DateIssue DatePatent Owner
9,347,316 Telescopic mine roof support Oct 07, 14 May 24, 16 , BURRELL MINING PRODUCTS INC.
9,340,945 Ground anchor device Apr 02, 15 May 17, 16 , ROBERT FRANKLIN BYE
9,334,735 Preloadable support Feb 24, 12 May 10, 16 , Not available
9,328,610 Filling of partitioned film packages for anchoring systems for mines Oct 26, 11 May 03, 16 J-LOK CO., J-LOK CO.

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Recent Publications

Not Available
Publication #TitleFiling DatePub DatePatent Owner
2016/0146,006 MINING MACHINE GATHERING HEAD Jun 19, 14 May 26, 16 , Not available
2016/0146,007 SYSTEM FOR MOUNTING CROSSBAR OF TEMPORARY ROOF SUPPORT SYSTEM Feb 05, 16 May 26, 16 , CATERPILLAR GLOBAL MINING AMERICA, LLC
2016/0138,397 ANCHORING AND ANTI-CLOGGING DRILL ROD FOR COAL MINE FLOOR Jan 25, 16 May 19, 16 CHINA UNIVERSITY OF MINING AND TECHNOLOGY,
2016/0130,778 Self-Drilling Rock Bolt Assembly and Method of Installation May 27, 14 May 12, 16 OKA ROCK BOLT TECHNOLOGIES PTY LIMITED,
2016/0130,942 DEVICE FOR SINKING A SHAFT AND METHOD FOR SINKING A SHAFT Jun 02, 14 May 12, 16 HERRENKNECHT AG,
2016/0130,943 Manufacture of Cable Bolts Jan 18, 16 May 12, 16 FCI HOLDINGS DELAWARE, INC.,
2016/0122,160 Overwind Conveyance Drop Protection Jun 06, 14 May 05, 16 TECHNOLOGICAL RESOURCES PTY. LIMITED,
2016/0122,967 NON-MECHANICAL ANCHOR Oct 29, 14 May 05, 16 WOLVERINE OUTFITTERS LLC,
2016/0123,146 METHOD AND CONTROL SYSTEM FOR A MINING VEHICLE AND A MINING VEHICLE May 27, 13 May 05, 16 SANDVIK MINING AND CONSTRUCTION OY,

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Patents Issued To Date - By Filing Year

Average Time to Issuance

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