Title:
配管構造および工法
Document Type and Number:
Japanese Patent JP6829795
Kind Code:
B2
Abstract:
A structure including: a straight pipe made of a polyolefin-based material; a pair of ridges made of a polyolefin-based material, extending in a circumferential direction along an outer surface of the straight pipe, and spaced apart from each other in an axial direction of the straight pipe; a piping material including a plurality of metal-made separate cases, which are separated from each other in the circumferential direction of the straight pipe and enclose a portion of the straight pipe; and a pair of engagement portions formed on at least one of the separate cases and engaging respectively with the pair of ridges.
Inventors:
Toshiyuki Sato
Application Number:
JP2020530119A
Publication Date:
February 10, 2021
Filing Date:
July 01, 2019
Export Citation:
Assignee:
Mizuken Co., Ltd.
Nippon Cast Iron Pipe Co., Ltd.
Nippon Cast Iron Pipe Co., Ltd.
International Classes:
F16L41/06; F16L55/00; F16L55/105
Domestic Patent References:
| JP2002098287A | ||||
| JP54081923U | ||||
| JP60045974U | ||||
| JP2002039485A | ||||
| JP2007252837A | ||||
| JP2014118998A | ||||
| JP2013520631A | ||||
| JP9196257A |
Attorney, Agent or Firm:
Yamamura Patent Office