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.:
Date of Patent:
Apr. 12, 2022
Filed:
Dec. 03, 2020
China University of Petroleum (East China), Shandong, CN;
Wensheng Xiao, Shandong, CN;
Lianpeng Mei, Shandong, CN;
Junguo Cui, Shandong, CN;
Zhanpeng Liu, Shandong, CN;
Liping Tan, Shandong, CN;
China University of Petroleum (East China), Shandong, CN;
Abstract
An electric drilling tool suitable for ocean under rater drilling rig is provided, which belongs to the technical field of ocean drilling equipment and includes a power supply assembly, a motor assembly and a bit assembly. The power supply assembly includes a power distribution cabinet, a power supply cable and a cable plug. The motor assembly includes a connecting joint, an upper machine head, a motor housing, a stator assembly, a rotor assembly, a centering bearing, stabilizing bearings, a rotating shaft, a lower machine head and a protector. The bit assembly includes a transition joint and a bit.