Invention Grant
- Patent Title: Foam duct
- Patent Title (中): 泡沫管
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Application No.: US13761262Application Date: 2013-02-07
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Publication No.: US08795802B2Publication Date: 2014-08-05
- Inventor: Masaaki Onodera
- Applicant: Kyoraku Co., Ltd.
- Applicant Address: JP Kyoto
- Assignee: Kyoraku Co., Ltd.
- Current Assignee: Kyoraku Co., Ltd.
- Current Assignee Address: JP Kyoto
- Agency: Greenblum & Bernstein P.L.C.
- Priority: JP2012-042294 20120228
- Main IPC: B29D22/00
- IPC: B29D22/00 ; F16L9/00 ; F16L59/14 ; B32B1/08
Abstract:
A foam duct in which rigidity is improvable includes a cylindrical portion having an external contour of a polygonal shape and a projection in an inner surface side of the cylindrical portion, and thickness of wall portions of the cylindrical portion is larger in a portion in which the projection is formed than in a portion in which the projection is not formed.
Public/Granted literature
- US20130224414A1 FOAM DUCT Public/Granted day:2013-08-29
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