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)

Recent Patents

Not Available
Patent #TitleFiling DateIssue DatePatent Owner
8,845,236 Ground anchor Feb 14, 14 Sep 30, 14 , FIXDIRT, LLC
8,839,885 Latching configuration for a microtunneling apparatus Apr 06, 11 Sep 23, 14 VERMEER MANUFACTURING COMPANY, VERMEER MANUFACTURING COMPANY
8,821,068 Manhole liner and method of using the same Jul 12, 10 Sep 02, 14 LMK TECHNOLOGIES, LLC, LMK TECHNOLOGIES, LLC
8,821,075 Yieldable support prop and method Oct 26, 11 Sep 02, 14 STRATA PRODUCTS WORLDWIDE, LLC, STRATA PRODUCTS WORLDWIDE, LLC

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Recent Publications

Not Available
Publication #TitleFiling DatePub DatePatent Owner
2014/0286,713 PROP HEAD BEARING DEVICE FOR SHIELD SUPPORTS Mar 17, 14 Sep 25, 14 CATERPILLAR GLOBAL MINING EUROPE GMBH,
2014/0265,519 MINING METHODS AND EQUIPMENT May 01, 14 Sep 18, 14 SENECA INDUSTRIES INC.,
2014/0265,522 MINING METHODS AND EQUIPMENT Mar 14, 13 Sep 18, 14 SENECA INDUSTRIES INC.,
2014/0265,524 MINING METHODS AND EQUIPMENT May 01, 14 Sep 18, 14 SENECA INDUSTRIES INC.,
2014/0270,983 Anchor and anchoring system Mar 14, 13 Sep 18, 14 CASE INNOVATIONS INC.,
2014/0252,843 TUNNEL BORING MACHINE DISC CUTTERS AND RELATED METHODS OF MANUFACTURE Mar 08, 13 Sep 11, 14 US SYNTHETIC CORPORATION,
2014/0248,093 SHORING BOX SYSTEM AND METHOD Oct 18, 12 Sep 04, 14 ,

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