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.

Date of Patent:
Jul. 24, 2018

Filed:

Apr. 21, 2015
Applicant:

Q.e.d. Environmental Systems, Inc., Dexter, MI (US);

Inventors:

David A. Fischer, Ann Arbor, MI (US);

David Mioduszewski, Dexter, MI (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B09B 1/00 (2006.01); E21B 43/12 (2006.01); E21B 44/00 (2006.01); E21B 34/02 (2006.01);
U.S. Cl.
CPC ...
B09B 1/006 (2013.01); E21B 34/02 (2013.01); E21B 43/12 (2013.01); E21B 44/00 (2013.01);
Abstract

A landfill well control system is disclosed which provides the ability to input a user selected set point to control a flow related variable at a landfill wellhead. A flow control actuator controls movement of a landfill gas (LFG) flow control valve. A sensor may be used for sensing the flow related variable. A controller is operably associated with the flow control actuator and the sensor. A user interface has a set selection for enabling a set point associated with the flow related variable, which is to be controlled by the system, to be input by the user. The controller operates to control the LFG flow control valve as needed to maintain the set point in an autopilot-like fashion.


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