Title:
導管
Document Type and Number:
Japanese Patent JP4017980
Kind Code:
B2
Abstract:
The invention relates to piping for transporting air or the like media, especially for use in heating, ventilation or air-conditioning systems, for example as electrical installation piping. The inventive piping has an inner height (Hi) of between approximately 30 and 80 mm and an inner width (Bi) of between approximately 70 to 150 mm, the inner height (Hi) being preferably not larger than approximately half the inner width (Bi). The piping has a substantially sinusoidally waved wall (W) having a wave height (Hw) of between approximately 4 and 10 mm and a wave length (Lw) of between approximately 5 and 20 mm.
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Inventors:
Guerlain Bernhardson
Application Number:
JP2002549872A
Publication Date:
December 05, 2007
Filing Date:
September 21, 2001
Export Citation:
Assignee:
Plugit International Namrose Fennaught Shap
International Classes:
F16L11/11; F24F13/02; E04F17/04; F16L11/15
Domestic Patent References:
| JP1166212U | ||||
| JP58090316U | ||||
| JP58072792A | ||||
| JP2000097115A | ||||
| JP11200967A | ||||
| JP8145444A | ||||
| JP48002753Y1 | ||||
| JP10257634A | ||||
| JP10148279A | ||||
| JP6016797U | ||||
| JP2000243150A | ||||
| JP2000346251A | ||||
| JP10501474A | ||||
| JP5096675U | ||||
| JP1188789A | ||||
| JP3194282A | ||||
| JP61215883A | ||||
| JP5069491U | ||||
| JP1102239A | ||||
| JP4050783U | ||||
| JP4069480A | ||||
| JP2001500227A | ||||
| JP11137893A |
Attorney, Agent or Firm:
Toshio Yano
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel
Toshiomi Yamazaki
Takuya Kuno
Einzel Felix-Reinhard
Reinhard Einsel