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:
Sep. 27, 2016
Filed:
Sep. 28, 2012
Applicant:
Rosemount Inc., Chanhassen, MN (US);
Inventors:
Robert Carl Hedtke, Young America, MN (US);
Nathan Len Wiater, Victoria, MN (US);
Assignee:
Rosemount Inc., Chanhassen, MN (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
E21B 47/09 (2012.01); E21B 43/12 (2006.01); F04B 47/02 (2006.01); F04B 49/06 (2006.01); F04B 51/00 (2006.01);
U.S. Cl.
CPC ...
E21B 47/091 (2013.01); E21B 43/121 (2013.01); E21B 47/09 (2013.01); F04B 47/02 (2013.01); F04B 49/06 (2013.01); F04B 51/00 (2013.01);
Abstract
A system for identifying location of a plunger that moves along a length of a well, includes an acoustic source carried in the well configured to transmit an acoustic signal when the plunger reaches a sense location in the well. An acoustic receiver is positioned at a top of the well and is configured to receive the acoustic signal processing circuitry processes the received acoustic signal and provides an output indicative of the plunger reaching the sense location.