Microperforated conduit
US11402123B2 · kind B2 · utility
1Cited by
14References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 26, 2018 |
| Grant date | Aug 2, 2022 |
| Priority date | — |
| Expiry date | Jul 13, 2039 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF24F2013/245
- WIPO fieldThermal processes and apparatus
- WIPO sectorMechanical engineering
Abstract
Provided are conduits for air flow that are capable of reducing noise and related methods. The provided conduits include a first section that is tubular and substantially non-perforated and a second section with at least a portion having a multiplicity of microperforations that provide an average flow resistance of from 50 MKS Rayls to 8000 MKS Rayls therethrough. The second section is either (a) tubular and connected in series with the first section, with an outer surface of the second section being in fluid communication with an outer surface of the conduit, or (b) disposed within the first section.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.