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:
Nov. 01, 2011
Filed:
Nov. 13, 2007
Xinyi Gu, Shandong, CN;
Huanbo Zhou, Shandong, CN;
Yonghai Liu, Shandong, CN;
Zhisheng Tian, Shandong, CN;
Zhengyou Feng, Shandong, CN;
Xinyi Gu, Shandong, CN;
Huanbo Zhou, Shandong, CN;
Yonghai Liu, Shandong, CN;
Zhisheng Tian, Shandong, CN;
Zhengyou Feng, Shandong, CN;
Sinopec Group, Shengli Petroleum Administration Transport Corporation, Dong Ying District, Dong Ying, Shandong, CN;
Abstract
The Ring Rack Oil Pumping Machine is comprised of: a base, a frame mounted on the base, a roller mounted at the frame top, a sprocket case connects to the middle of the frame; a input shaft having a lower sprocket and a drive shaft having an upper sprocket are installed at the bottom and top of the sprocket case respectively, the upper sprocket and lower sprocket are connected by a chain; a guide wheel, track gear and centralizer wheel are mounted in sequence on the end of the drive shaft extended out of the sprocket case; the track gear meshes with a rack, a slide rail is mounted with the frame, and a sliding base () connected with the slide rail () moveably. Comparing to currently using pumping units, this invention features simple structure, high safety and reliability, upgraded efficiency, easy maintenance, smooth running and high durability.