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:
Jul. 05, 1994
Filed:
Oct. 01, 1992
Akinobu Takagi, Numazu, JP;
Isao Ohtake, Shizuoka, JP;
Osamu Nakano, Shizuoka, JP;
Toru Murakami, Shizuoka, JP;
Tokushu Paper Mfg. Co., Ltd., Shizuoka, JP;
Abstract
An air duct is disclosed which includes a tubular member formed from a metal sheet. A paper is disposed around an outer periphery of the tubular member for preventing condensation droplets condensed on the tubular member from dripping, and an adhesive is interposed between the tubular member and the paper to adhesively secure the tubular member and the paper. Furthermore, a paper for an air duct, adapted to be secured to an outer periphery of the air duct, is disclosed. The paper is produced from a material including a papermaking pulp and is characterized by the following: a wet strength of at least 0.3 kgf/15 mm, a critical value for dripping of water droplets of at least 45 g/m.sup.2, and a basis weight of 40 to 5000 g/m.sup.2.