E21F 5/04

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Description

Class  E21F : SAFETY DEVICES, TRANSPORT, FILLING-UP, RESCUE, VENTILATION, OR DRAINAGE IN OR OF MINES OR TUNNELS


Subclass 5/04: Means or methods for preventing, binding, depositing or removing dust; Preventing explosions or fires (dams E21F 17/103; applying liquids or other fluent materials to surfaces in general B05; flue-gas indicators G01N) by wetting or spraying Spraying barriers (spray nipples, spraying in general B05B, B05D; picks with arrangement of fluid-spraying nozzles E21C 35/187)

Recent Patents

Patent #TitleFiling DateIssue DatePatent Owner
11873719 Gas-liquid spray dust settlement system for fully mechanized mining faceJul 14, 20Jan 16, 24ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY; PINGAN COAL MINING ENGINEERING RESEARCH INSTITUTE CO., LTD.;
11781431 High-temperature high-efficiency explosion-proof integrated modular dust removal equipment for pyrolysis raw coal gasAug 17, 21Oct 10, 23Guoke Yongji (Beijing) Engineering Installation Co., Ltd.
11492906 Sprayer for settling dust of coal mineJul 14, 20Nov 08, 22ANHUI UNIVERSITY OF SCIENCE AND TECHNOLOGY; PINGAN COAL MINING ENGINEERING RESEARCH INSTITUTE CO., LTD.;
11028693 Absorption-induction convectional dust-controlling/removing air/fog curtain device of fully-mechanized working face and method thereofJun 26, 19Jun 08, 21Shandong University of Science and Technology
10927280 Methods of and systems for controlling dustNov 04, 16Feb 23, 21ECOLAB USA INC.
10612379 Combined automatic anti-explosion method for gas drainage pipelineAug 03, 18Apr 07, 20CHINA UNIVERSITY OF MINING AND TECHNOLOGY; XUZHOU JINBO SAFETY AND TECHNOLOGY CO., LTD;
9086180 Quick connect fire and dust suppression systemJul 11, 12Jul 21, 15Porta, Frank T.
8814067 Optimized air delivery apparatusApr 28, 11Aug 26, 14Maxum LLC
8342120 Apparatuses and methods for applying one or more materials on one or more substratesMar 16, 09Jan 01, 13THE BOARD OF TRUSTEES OF THE UNIVERSITY OF ILLINOIS
8191801 Aerosol sprayMar 29, 05Jun 05, 12The Procter & Gamble Company
8048010 Massage nozzle and massage deviceJan 14, 05Nov 01, 11TOTO LTD.
7959088 Method and apparatus for producing droplet sprayMay 14, 04Jun 14, 11METHVEN LIMITED
7694897 Integrated multi-function showerheadApr 19, 07Apr 13, 10MOEN INCORPORATED

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Recent Publications

Publication #TitleFiling DatePub DatePatent Owner
2022/0401,986 CONTROL OF DUST FORMATION IN DEMOLITION WORK WITH A TOOL-CARRYING WORK VEHICLEOct 27, 20Dec 22, 22Not available
2017/0130,109 Methods of and Systems for Controlling DustNov 04, 16May 11, 17ECOLAB USA INC.

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Top Owners in This Subclass

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Patents Issued To Date - By Filing Year

Average Time to Issuance