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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 9821425 B1

PDFFull Text
Date of Patent:
Nov. 21, 2017

Filed:

Mar. 03, 2015

Device for supplying subcooled liquid cryogen to cutting tools

Applicant:

5me Ip, Llc, Cincinnati, OH (US);

Inventors:

Ravikumar Kudaravalli, Shelby Township, MI (US);

George Georgiou, Tecumseh, CA;

Assignee:

5ME IP, LLC, Cincinnati, OH (US);

Attorney:

Reising Ethington P.C.

Primary Examiner:

Frantz Jules

Assistant Examiner:

Erik Mendoza-Wilkenfel

Int. Cl.
CPC ...
F17C 7/00 (2006.01); F17C 9/00 (2006.01); F28D 7/04 (2006.01); B23B 27/10 (2006.01); B23B 51/06 (2006.01); B23Q 11/10 (2006.01); F17C 13/02 (2006.01); F25D 3/10 (2006.01);
U.S. Cl.
CPC ...
B23Q 11/1053 (2013.01); F17C 9/00 (2013.01); F17C 13/026 (2013.01); F25D 3/10 (2013.01); B23Q 11/1061 (2013.01); F17C 2205/0332 (2013.01); F17C 2205/0335 (2013.01); F17C 2221/013 (2013.01); F17C 2221/014 (2013.01); F17C 2221/016 (2013.01); F17C 2221/017 (2013.01); F17C 2223/0161 (2013.01); F17C 2223/033 (2013.01); F17C 2223/046 (2013.01); F17C 2225/0161 (2013.01); F17C 2225/0169 (2013.01); F17C 2225/033 (2013.01); F17C 2227/0339 (2013.01); F17C 2227/0374 (2013.01); F17C 2265/017 (2013.01); F17C 2270/0545 (2013.01); F25B 2400/23 (2013.01); Y10T 407/14 (2015.01); Y10T 408/03 (2015.01); Y10T 409/304088 (2015.01);
Abstract

A method for subcooling liquid cryogen that is used by a cutting tool uses the steps of dividing liquid phase cryogen between a subcooler feed line and tool feed line. The cryogen in the subcooler feed line is expanded to lower the pressure and decrease the temperature of the cryogen, and the expanded liquid cryogen from the subcooler feed line is added to the interior of a subcooler. A heat exchanger is positioned in the subcooler in contact with the expanded liquid cryogen. The cryogen in the tool feed line is subcooled below its saturation temperature by passing the cryogen through the heat exchanger, and the subcooled cryogen from the heat exchanger is supplied to the cutting tool. As a result, the subcooled cryogen supplied to the cutting tool is substantially 100% liquid cryogen without any vapor content.

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