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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.:

US 8805591 B1

PDFFull Text
Date of Patent:
Aug. 12, 2014

Filed:

Jan. 17, 2012

Pressure compensated flow rate controller with btu meter

Applicants:

Paul K. Skoglund, Medina, WA (US);

Art Smith, Woodinville, WA (US);

Ben Trueblood, Woodinville, WA (US);

Chris Robson, Woodinville, WA (US);

Mark W. Kirchner, Seattle, WA (US);

Inventors:

Paul K. Skoglund, Medina, WA (US);

Art Smith, Woodinville, WA (US);

Ben Trueblood, Woodinville, WA (US);

Chris Robson, Woodinville, WA (US);

Mark W. Kirchner, Seattle, WA (US);

Assignee:

Flow Control Industries, Inc., Woodinville, WA (US);

Attorney:

Perkins Coie LLP

Primary Examiner:

Mohammad Ali

Assistant Examiner:

Jennifer L Norton

Int. Cl.
CPC ...
F16K 37/00 (2006.01); F17D 3/00 (2006.01); F25B 29/00 (2006.01); G01F 1/34 (2006.01); G01F 1/36 (2006.01); G01F 1/37 (2006.01); G01F 1/50 (2006.01); G01F 1/74 (2006.01); G01F 1/88 (2006.01); G01F 15/00 (2006.01); G01F 25/00 (2006.01); G01K 13/02 (2006.01); G01K 13/10 (2006.01); G01K 15/00 (2006.01); G01L 19/00 (2006.01); G05B 15/02 (2006.01); G05D 7/00 (2006.01); G05D 7/06 (2006.01); G05D 16/00 (2006.01); G05D 16/02 (2006.01); G05D 23/00 (2006.01); G08B 21/00 (2006.01); F28F 27/00 (2006.01); G05D 16/20 (2006.01);
U.S. Cl.
CPC ...
G01F 1/363 (2013.01); F16K 37/00 (2013.01); F28F 27/00 (2013.01); G01F 1/34 (2013.01); G01F 1/37 (2013.01); G01F 1/50 (2013.01); G01F 1/74 (2013.01); G01F 1/88 (2013.01); G01F 15/005 (2013.01); G01F 25/0007 (2013.01); G01K 13/02 (2013.01); G01K 15/00 (2013.01); G01K 15/002 (2013.01); G01L 19/0007 (2013.01); G01L 19/0092 (2013.01); G05B 15/02 (2013.01); G05D 7/0635 (2013.01); G05D 7/0688 (2013.01); G05D 7/0694 (2013.01); G05D 16/2013 (2013.01);
Abstract

A constant-flow control valve and BTU meter assembly that has a pressure independent, constant-flow control valve assembly connectable to the fluid-based heating or cooling system. A valve stem is connected to a valve member and is rotatable as a unit relative to a valve body to change the position of valve member to change a fluid flow rate through the valve. The valve member's position relative to the fluid path is directly related to the fluid flow rate. A BTU meter assembly is connected to the valve stem, which is rotatable relative to the BTU meter assembly. A position sensor of the BTU meter assembly detects a rotational position of the valve stem relative to the BTU body. A controller of the BTU meter assembly determines the fluid flow rate based upon the pressure drop across the valve assembly and the rotational position of the valve stem.

Find Patent Forward Citations

Skoglund, Paul. (2014). Pressure compensated flow rate controller with btu meter (U.S. Patent No. 8805591). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8805591

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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