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:
Mar. 30, 2021
Filed:
Dec. 29, 2017
Southwest Petroleum University, Sichuan, CN;
Chengdu Weiyi Petroleum Technology Co., Ltd., Sichuan, CN;
Lian Chen, Sichuan, CN;
Yingxin Yang, Sichuan, CN;
Zongliang Xie, Sichuan, CN;
Haitao Ren, Sichuan, CN;
Liyuan Yang, Sichuan, CN;
SOUTHWEST PETROLEUM UNIVERSITY, Sichuan, CN;
CHENGDU WEIYI PETROLEUM TECHNOLOGY CO., LTD., Sichuan, CN;
Abstract
A rotating cutter single cone bit includes a bit body and a cone that is rotatably coupled to the bit body. Cutters are arranged on the cone. At least one cutter on the cone is a rotating cutter. The rotating cutter forms a rotational connection with the cone. The geometric center of the front cutting face of the rotating cutter or the front cutting face of the rotating cutter is offset from the rotating axis of the rotating cutter, and the geometric center of the rear cutting face or the rear cutting face of the rotating cutter is on the same side of the offset of the front cutting face. The front cutting face is closer to the rotating axis of the rotating cutter than the rear cutting face. The rotating cutter is rotatable about the rotating axis of the rotating cutter on the cone.