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:
May. 10, 2016
Filed:
Sep. 09, 2011
Hiroyuki Sasaki, Aichi-ken, JP;
Hiroyuki Sasaki, Aichi-ken, JP;
Airweave Manufacturing Inc., Aichi-Ken, JP;
Abstract
The purpose of the invention is to eliminate water-permeable sheets and thus to eliminate various bothersome works related to the water-permeable sheets. To achieve the purpose, the surfaces of the chutesare roughened by sandblasting. The chutesare made of metal such as stainless steel, for example. Processed metal surfaces are generally smooth with almost no friction. Moreover, metal has its inherent water repellency. If water is flowed on a bare metal surface, some parts do not get wet while some parts have concentrated surge water flow thereon. However, by sandblasting the surfaces of the chutes, adequate friction resistance is generated and inherent water repellency of metal is eliminated.