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, 2017
Filed:
Jul. 23, 2012
Huian Yi, Beijing, CN;
Bingzhou Tian, Beijing, CN;
Shanyin Chen, Beijing, CN;
Baisong Ding, Beijing, CN;
Zhien Zan, Beijing, CN;
Boren LI, Beijing, CN;
Miaoren Liu, Beijing, CN;
Fangju YE, Beijing, CN;
Qizun Yi, Beijing, CN;
Guangli Chen, Beijing, CN;
Huian Yi, Beijing, CN;
Bingzhou Tian, Beijing, CN;
Shanyin Chen, Beijing, CN;
Baisong Ding, Beijing, CN;
Zhien Zan, Beijing, CN;
Boren Li, Beijing, CN;
Miaoren Liu, Beijing, CN;
Fangju Ye, Beijing, CN;
Qizun Yi, Beijing, CN;
Guangli Chen, Beijing, CN;
STARSE ENERGY AND TECHNOLOGY (GROUP) CO., LTD., Beijing, CN;
Other;
Abstract
A liner hanger top packer comprising a body and, an adjusting sleeve, a retaining apparatus, a base-sealing apparatus, a base-hanging apparatus and a locking mechanism sleeved sequentially from top to bottom on the body. The locking mechanism is arranged between the base-sealing apparatus and the base-hanging apparatus. The locking mechanism comprises a locking ball sleeve, a ball socket, and a steel ball. As the lower part of the liner hanger top packer is met with friction, the arrangement of the steel ball restricts relative axial movements between an upper gauge ring of the base-sealing apparatus, the locking ball sleeve, and an upper conical body of the base-hanging apparatus, the friction transmitted to the upper conical body is not transmitted to a lower gauge ring of the base-sealing apparatus, is transmitted to the upper gauge ring via the steel ball, and is transmitted to the adjusting ring via the retaining apparatus.