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. 20, 1984
Filed:
Apr. 18, 1983
Louis S McTamaney, Cupertino, CA (US);
Allan B Delfino, Sunnyvale, CA (US);
Gary W Bisbee, Woodlands, TX (US);
FMC Corporation, Chicago, IL (US);
Abstract
Method and apparatus for recording and subsequent playback of selected dynagraphs for wells employing sucker-rod pumping units to determine well faults which cause well shutdown. Calibration data from well monitoring equipment is stored in a first 'endless tape' type of memory during calibration of the well and operation data from the monitoring equipment is stored in a second 'endless tape' memory during well operation. After well shutdown the stored data can be retrieved and the operation data stored immediately prior to well shutdown compared with calibration data to determine what type of fault caused well shutdown.