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:
Aug. 29, 2023
Filed:
Feb. 18, 2021
China National Offshore Oil Corporation, Beijing, CN;
China Oilfield Services Limited, Tianjin, CN;
Zhibin Tian, Hebei, CN;
Lin Huang, Hebei, CN;
Zanqing Wei, Hebei, CN;
Shusheng Guo, Hebei, CN;
Yongren Feng, Hebei, CN;
Xingfang Wu, Hebei, CN;
Tiemin Liu, Hebei, CN;
Yong Jiang, Hebei, CN;
Bin Gao, Hebei, CN;
Peng Sun, Hebei, CN;
Shiwei Zong, Hebei, CN;
Jianyong Zhang, Hebei, CN;
Aijun Zhang, Hebei, CN;
China National Offshore Oil Corporation, Beijing, CN;
China Oilfield Services Limited, Tianjin, CN;
Abstract
A core detection device of a coring instrument includes a base body and a core switch mechanism provided on the base body. The base body is provided with a core channel communicated with a core barrel. The core switch mechanism includes a detection portion, a connecting rod assembly and a travel switch which are sequentially arranged and connected along a length direction of the coring instrument. The detection portion is rotatably installed on the base body and one end thereof is extended into the core channel, so that a core passing through the core channel pushes the detection portion to rotate. The connecting rod assembly can be pulled by the rotating detection portion to trigger the travel switch to operate. The core switch mechanism adopts a slider-connecting rod structure, and the kinematic pairs are mainly a sliding pair and a rotating pair.