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:
Dec. 31, 2019
Filed:
Dec. 14, 2016
Applicant:
Doosan Heavy Industries Construction Co., Ltd., Gyeongsangnam-do, KR;
Inventors:
Youngsam Shim, Busan, KR;
Donggon Lee, Incheon, KR;
Assignee:
Doosan Heavy Industries Construction Co., Ltd, Gyeongsangnam-do, KR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F23R 3/00 (2006.01); F23R 3/04 (2006.01); F23R 3/06 (2006.01);
U.S. Cl.
CPC ...
F23R 3/005 (2013.01); F23R 3/002 (2013.01); F23R 3/04 (2013.01); F23R 3/045 (2013.01); F23R 3/06 (2013.01);
Abstract
An air flow guide cap for inducing an air flow into a through hole of the floor includes: an upper surface upwardly inclined relative to a horizontal plane; and a wall surface downwardly extending along edges of the upper surface except the edge adjacent to an air inlet.