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:
Apr. 07, 2015
Filed:
Dec. 12, 2012
Applicant:
Air Liquide Process & Construction, Inc., Houston, TX (US);
Inventors:
Bruce M. Ellis, Houston, TX (US);
Minh Huy Pham, Houston, TX (US);
Assignee:
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F25D 21/00 (2006.01); F25B 41/00 (2006.01); F25D 21/12 (2006.01); B08B 7/00 (2006.01);
U.S. Cl.
CPC ...
B08B 7/00 (2013.01);
Abstract
An improved vent ice prevention apparatus including a first conduit, a second conduit, and a third conduit, wherein the second conduit concentrically surrounds the first conduit thereby forming an annular region between the two conduits. The third conduit is in fluid communication with said annular region. The first conduit is configured to receive a cold vent stream, and the third conduit is configured to receive a dry purge stream and introduce the dry purge stream into the annular region in order to prevent ice formation.