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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 11396810 B1

PDFFull Text
Date of Patent:
Jul. 26, 2022

Filed:

Nov. 09, 2020

Full-length screen pipe hole protection device and method with pressurized hole packing in soft coal seam

Applicant:

Shandong University of Science and Technology, Qingdao, CN;

Inventors:

Guanhua Ni, Qingdao, CN;

Kai Dong, Qingdao, CN;

Weimin Cheng, Qingdao, CN;

Jingna Xie, Qingdao, CN;

Gang Wang, Qingdao, CN;

Yixin Liu, Qingdao, CN;

Qiming Huang, Qingdao, CN;

Assignee:

SHANDONG UNIVERSITY OF SCIENCE AND TECHNOLOGY, Qingdao, CN;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Jeffrey D Washville

Int. Cl.
CPC ...
E21F 7/00 (2006.01); C04B 28/26 (2006.01); C09K 3/10 (2006.01); E21B 33/13 (2006.01); E21B 43/00 (2006.01); E21B 33/12 (2006.01); E21B 43/08 (2006.01); C04B 24/26 (2006.01); C04B 28/24 (2006.01); C04B 111/00 (2006.01);
U.S. Cl.
CPC ...
E21F 7/00 (2013.01); C04B 24/2641 (2013.01); C04B 28/24 (2013.01); C04B 28/26 (2013.01); C09K 3/10 (2013.01); E21B 33/12 (2013.01); E21B 33/13 (2013.01); E21B 43/006 (2013.01); E21B 43/086 (2013.01); C04B 2111/00008 (2013.01); C04B 2111/00663 (2013.01); C04B 2111/00724 (2013.01); C09K 2003/1034 (2013.01); C09K 2003/1087 (2013.01);
Abstract

A full-length screen pipe hole protection device and method with pressurized hole packing in a soft coal seam relates to the field of gas drainage technologies. The device includes a grouting system, a drainage system and a hole fixing system. The grouting system injects a pressurized sealing material into a borehole through a pressure pump to increase a sealing effect of the borehole. The drainage system drains gas in the middle of air holes on metal baffle plates and hole fixing screen pipes through a drainage pipe to increase flowability of gas. The hole fixing system is inside the borehole and fixed with the metal baffle plates, and the hole fixing screen pipes are fixedly connected with each other through fitting mouths and fitting buckles. The device is fixedly mounted in the gas drainage borehole. After hole packing, the drainage pipe is connected with a drainage pump to drain gas.

Find Patent Forward Citations

Ni, Guanhua. (2022). Full-length screen pipe hole protection device and method with pressurized hole packing in soft coal seam (U.S. Patent No. 11396810). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/11396810

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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