Title:
道路騒音減少装置および設置方法
Document Type and Number:
Japanese Patent JP6896740
Kind Code:
B2
Abstract:
A noise reducing roadway includes pipe-shaped bodies having a fitting groove formed toward an inside of one end, a shim protruding outward from the other end and a communication portion formed at a side portion of the body to allow the hollow interior to communicate with the outside environment. A heating wire is provided to prevent ice from filling the pipe-shaped bodies.
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| JPS60230411 | INORGANIC SOUND ABSORBING PLATE |
Inventors:
Im Nam Kyun
Im Chan
Im Chan
Application Number:
JP2018533595A
Publication Date:
June 30, 2021
Filing Date:
September 08, 2016
Export Citation:
Assignee:
Im Nam Kyun
International Classes:
E01F8/00
Domestic Patent References:
| JP9508948A | ||||
| JP56004161Y2 | ||||
| JP5492018B2 | ||||
| JP46024356B1 | ||||
| JP2006322189A |
Foreign References:
| KR200428537Y1 |
Attorney, Agent or Firm:
Mitsuhiro Kato