Patent · US Active

Shroud

US11097828B2 · kind B2 · utility

2Cited by

49References

20Claims

0Family size

Assignee

Dotterel Technologies Limited · NZ

Inventors

Samuel Seamus ROWE · Auckland, NZ
Matthew Rowe · Welwyn Garden City, GB
Aidan Clarke · Auckland, NZ

Key dates

Filing date	Jul 23, 2018
Grant date	Aug 24, 2021
Priority date	—
Expiry date	Jul 23, 2038

Classification

Technology area (CPC Y)Emerging Cross-Sectional Technologies
CPC primaryY02T50/40
WIPO fieldTransport
WIPO sectorMechanical engineering

Abstract

A shroud for an aircraft configured to at least partially surround a noise source including a propeller. The shroud includes an outer layer and two or more sound absorbing materials located inside the shroud. The outer layer is configured to transmit noise from the noise source into the inside of the shroud and/or includes a recess located and sized to partially surround at least a part of a tip of at least one blade.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.