06749017 is referenced by 7 patents and cites 5 patents.

This device is related to the domain of fully automatic machines for oil extraction. An axle transmission and soft belt suspension system is used in the device. A decelerator connects an electric motor and a driving hub, so that the transmission belt can be driven. When the driven hub and the bridle are connected, the sucker rod will be connected so that the oil-well pump can start working. There are several other units, an absolute value coder that can measure the driven hub's angle of rotation, a augmenter coder that can measure the rotational speed of the electric motor and an oil gauge. In the device, a oil production process controller processes collects signals and then the device controls the machine, the beam and the pump system automatically. It has the advantages of saving energy, high efficiency for oil extraction and long operational life span.

Title
Full automatic machine for oil extraction
Application Number
10/69712
Publication Number
6749017 (B1)
Application Date
June 11, 2002
Publication Date
June 15, 2004
Inventor
Ying Li
A203 Beijing Dart Business Garden No. 10A Huixinli, Anwai, Xiaoguan, Chaoyang Dist., Beijing
US
Xu Lu
A203 Beijing Dart Business Garden No. 10A Huixinli, Anwai, Xiaoguan, Chaoyang Dist., Beijing
US
Agent
Senniger Powers Leavitt & Roedel
US
IPC
E21B 43/00
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