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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 12509943 B1

PDFFull Text
Date of Patent:
Dec. 30, 2025

Filed:

Sep. 21, 2023

Combined drilling system with double rotary driving devices and control method therefor

Applicant:

Ccteg Chongqing Research Institute Co., Ltd., ChongQing, CN;

Inventors:

Hang Chen, ChongQing, CN;

Dezhong Xin, ChongQing, CN;

Jun Wan, ChongQing, CN;

Lin Yang, ChongQing, CN;

Xiaohua Liu, ChongQing, CN;

Yuqing Xiao, ChongQing, CN;

Jian Pu, ChongQing, CN;

Shizhai Zhang, ChongQing, CN;

Min Tang, ChongQing, CN;

Jinjun Lv, ChongQing, CN;

Zhengang Ma, ChongQing, CN;

Yuan Wan, ChongQing, CN;

Xin Dou, ChongQing, CN;

Fujia Zhou, ChongQing, CN;

Xing Wang, ChongQing, CN;

Shiping Lu, ChongQing, CN;

Keyu Chen, ChongQing, CN;

Yiting Liu, ChongQing, CN;

Assignee:

CCTEG Chongqing Research Institute Co., Ltd., Chongqing, CN;

Attorney:

Wang Law Firm, Inc.

Primary Examiner:

Nathaniel C Chukwurah

Int. Cl.
CPC ...
E21B 3/02 (2006.01); E21B 7/04 (2006.01); E21B 44/00 (2006.01);
U.S. Cl.
CPC ...
E21B 3/02 (2013.01); E21B 7/04 (2013.01); E21B 44/00 (2013.01);
Abstract

The present invention relates to a combined drilling system with double rotary driving devices and a control method, belonging to the technical field of coal mine drills. The other end of a driving shaft in the gearbox connects to an adjuster, which includes a transmission shaft, fixed toothed disk, moving toothed disk, rotary seat, end cover, and a rotary speed reducer with a self-locking function. One end of the transmission shaft is fixedly connected to the driving shaft. The fixed and moving toothed disks are sheathed on the transmission shaft, with the fixed toothed disk engaged with the moving toothed disk through skewed teeth. The moving toothed disk is rotationally connected and can slide axially along the transmission shaft. The rotary seat is fixedly connected to the moving toothed disk, while the rotary speed reducer's output disk is coaxially fixed to the rotary seat, enabling controlled rotation.

Find Patent Forward Citations

Chen, Hang. (2025). Combined drilling system with double rotary driving devices and control method therefor (U.S. Patent No. 12509943). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12509943

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

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