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.

Date of Patent:
Jul. 08, 2014

Filed:

Sep. 29, 2010
Applicants:

Masaaki Onodera, Yamato, JP;

Yoshitaka Matsubara, Yamato, JP;

Naoto Tani, Nagoya, JP;

Kazuo Waki, Nagoya, JP;

Inventors:

Masaaki Onodera, Yamato, JP;

Yoshitaka Matsubara, Yamato, JP;

Naoto Tani, Nagoya, JP;

Kazuo Waki, Nagoya, JP;

Assignee:

Kyoraku Co., Ltd., Kyoto, JP;

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
F16L 11/11 (2006.01);
U.S. Cl.
CPC ...
Abstract

The invention provides a method for manufacturing a climate control duct, the method capable of improving a characteristic of transferring a shape of a protrusion onto a surface of a duct and capable of preventing reduction in ventilation efficiency. In order to manufacture a climate control duct having a protrusion formed on an outer peripheral surface thereof, the method includes subjecting an extruded foamed resin to blow molding by use of a duct-shaped mold in which a groove for transfer of a shape of the protrusion is formed on at least part of a surface thereof. Herein, the following relations are satisfied: 0.5 mm<D<5 mm, D<W<4×D, and W<2×T, in which W represents a width of the groove, D represents a depth of the groove, and T represents a thickness of the foamed resin.


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