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:
Feb. 21, 2017
Filed:
Sep. 28, 2015
Applicant:
Tigers Polymer Corporation, Osaka, JP;
Inventors:
Minoru Hasegawa, Hyogo, JP;
Seisuke Okabe, Hyogo, JP;
Assignee:
TIGERS POLYMER CORPORATION, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F24F 13/24 (2006.01);
U.S. Cl.
CPC ...
F24F 13/24 (2013.01); F24F 2013/242 (2013.01);
Abstract
An air duct of this disclosure includes: a tubular duct body formed from a non-air-permeable material; and a tubular opening end member formed from an air-permeable material. The opening end member is integrated with an end portion of the duct body so as to extend a duct wall of the duct body. D representing a diameter of the opening end member and L representing a length thereof satisfy a relationship 0.1D≦L≦1.5D. An air permeability of the air-permeable material is in a range of 0.3 to 100 sec/300 cc.