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 8418484 B1

PDF
Full Text
Expired
Date of Patent:
Apr. 16, 2013

Filed:

Jan. 30, 2008
Applicants:

Victor Petrenko, Lebanon, NH (US);

Charles R. Sullivan, West Lebanon, NH (US);

Inventors:

Victor Petrenko, Lebanon, NH (US);

Charles R. Sullivan, West Lebanon, NH (US);

Assignee:
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F25B 47/00 (2006.01); F25B 47/02 (2006.01); F28D 1/047 (2006.01); F28D 11/06 (2006.01); F28F 5/00 (2006.01); F28F 13/08 (2006.01); F28F 17/00 (2006.01); F25D 21/06 (2006.01);
U.S. Cl.
CPC ...
Abstract

A heat exchanger for exchanging heat between gasses such as air and a liquid or gaseous coolant has narrow spacing between exchanger surfaces for high efficiency. To avoid undue obstruction of gas flow due to ice buildup on the exchanger surfaces, the heat exchanger is equipped with sensors to monitor the gas flow and an actuator that widens the spacing between exchanger surfaces such that gas flow remains unimpeded. Embodiments provide for defrosting of the exchanger surfaces when an limit on spacing of exchanger surfaces is reached, and for relaxing the spacing to the original narrow spacing when defrosting is completed.


Find Patent Forward Citations

Petrenko, Victor. (2013). Compact helical heat exchanger with stretch to maintain airflow (U.S. Patent No. 8418484). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/8418484

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

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