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US Patent 11077953 Electric ducted fan

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Patent Citations Received

US Patent 12104530 Gas turbine engine

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Edits on 18 Sep, 2024

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Patent Citations Received

US Patent 12092037 Gas turbine engine with electric machines

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edited on 18 Sep, 2024

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US Patent 12092030 Gas turbine engine

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US Patent 12006055 Gas turbine engine with electric machines

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Patent Citations Received

US Patent 11993387 Gas turbine engine

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US Patent 11994067 Gas turbine engine

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US Patent 11920540 Gas turbine engine with a defined fan axis angle between a fan tip axis and a centerline

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edited on 12 Dec, 2023

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Patent abstract

An electric ducted fan for an aircraft is shown. A nacelle defines a duct that houses a propulsive fan having a fan diameter DF. An electric machine is configured to drive the fan, and has an electromagnetically active length LA and an electromagnetically active diameter DA defining an aspect ratio (LA/DA) of from 0.8 to 2. A speed reduction device is located between the electric machine and the fan, and has a reduction ratio of at least 3:1. A ratio of the electromagnetically active diameter DA to the fan diameter DF (DA/DF) is from 0.3 to 0.5.

Edits on 24 May, 2023

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=1107795300

Edits on 22 Apr, 2023

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edited on 22 Apr, 2023

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Is a

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Patent Applicant

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

110779530

Date of Patent

August 3, 2021

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Patent Application Number

201904220

Date Filed

April 22, 2019

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=110779530

Edits on 27 Sep, 2022

"Entity importer update"

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Infobox

Is a

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Patent Applicant

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Patent Jurisdiction

United States Patent and Trademark Office

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Patent Number

110779530

Date of Patent

August 3, 2021

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Patent Application Number

201904220

Date Filed

April 22, 2019

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Official Website

https://pdfpiw.uspto.gov/.piw?Docid=110779530

Edits on 19 May, 2022

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edited on 19 May, 2022

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Website URL

https://pdfpiw.uspto.gov/.piw?Docid=11077953

Edits on 8 Oct, 2021

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created this topic on 8 Oct, 2021

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US Patent 11077953 Electric ducted fan

Infobox

Is a

Patent applicant

Patent jurisdiction

United States Patent and Trademark Office

Patent number

11077953

Date of patent

August 3, 2021

Patent application number

20190422

Date Filed

April 22, 2019

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