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:
Jul. 12, 1977
Filed:
Sep. 20, 1976
Applicant:
Inventor:
Maurice M Patterson, Houston, TX (US);
Assignee:
Shell Oil Company, Houston, TX (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
E21B / ; F04B / ; G01L / ;
U.S. Cl.
CPC ...
166250 ; 166 53 ; 166 / ; 73151 ;
Abstract
A method and apparatus for measuring the energy input to the rod string of a well pumping unit in real time wherein the load on the rod string is multiplied by the velocity of the rod string and the result integrated over at least a portion of the pump stroke. The change in the energy input to the well is used to determine when the well has pumped-off.
Patterson, Maurice. (1977). Method for pump-off detection (U.S. Patent No. 4034808). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/4034808
Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile