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:
Oct. 31, 2017
Filed:
Nov. 04, 2014
Applicant:
Hanwha Techwin Co., Ltd., Changwon-si, KR;
Inventor:
Karl D. Wygant, Houston, TX (US);
Assignee:
Hanwha Techwin Co., Ltd., Changwon-Si, KR;
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
F04D 29/16 (2006.01); F04D 29/42 (2006.01); F01D 11/02 (2006.01); F01D 11/08 (2006.01); F04D 29/52 (2006.01);
U.S. Cl.
CPC ...
F04D 29/4206 (2013.01); F01D 11/025 (2013.01); F01D 11/08 (2013.01); F04D 29/162 (2013.01); F04D 29/164 (2013.01); F04D 29/526 (2013.01); F05D 2240/307 (2013.01); F05D 2250/182 (2013.01);
Abstract
Provided is a sealing device including: an impeller configured to rotate; a casing including a groove portion in a surface facing the impeller; a floating ring configured to float between the casing and the impeller and configured to be inserted into the groove portion; and a centering ring provided inside the groove portion and provided between the casing and the floating ring.