Japan, Sept. 16 -- MARUICHI CORP has got intellectual property rights for 'DRAINAGE PIPING.' Other related details are as follows:
Application Number: JP,2022-197282
Category (FI): E03C1/122@A,E03C1/284,E03C1/12@D
Stage: PROBLEM TO BE SOLVED: To provide drainage piping that can solve the following problems that: in order to eliminate malfunctions caused by pressure changes in the drainage piping, pressure adjustment mechanisms such as intake valves, exhaust valves, and positive and negative pressure relief devices are sometimes connected to the drainage piping, in such cases, however, these pressure adjustment mechanisms often include moving parts, and if drainage water flowing through the drainage piping comes into contact with the pressure adjustment mechanisms, the moving parts may stop working, causing malfunctions; and although there is a method of making it difficult for the drainage water to flow into the pressure adjustment mechanisms by providing a convex part or the like in a drainage water flow channel, it is difficult to completely prevent the drainage water, and there is also a risk that drainage water performance is deteriorated by the convex part.SOLUTION: Drainage piping is composed of a piping member through which drainage water passes, a branch pipe part provided with an opening part in the side of the piping member and extending from the opening part in a direction of the side of the piping member, a pressure adjustment mechanism for adjusting pressure of air in the piping member connected to the branch pipe part, and a waterproof body that is disposed in the opening part, permits passage of gas and does not permit the passage of a liquid.SELECTED DRAWING: Figure 2 (Grant)
Filing Date: Dec. 9, 2022
Publication Date: June 20, 2024
The original document can be viewed at: https://www.j-platpat.inpit.go.jp/p0100
Disclaimer: Curated by HT Syndication.
