Is a
Patent attributes
Patent Applicant
Current Assignee
Patent Jurisdiction
Patent Number
Patent Inventor Names
Nicholas Ralph Carlson0
George Matthew Thompson0
Jonathan Andrew Knoll0
Date of Patent
December 21, 2021
0Patent Application Number
169070870
Date Filed
June 19, 2020
0Patent Citations Received
Patent Primary Examiner
Patent abstract
A proprotor system for a ducted aircraft includes a duct and proprotor blades surrounded by the duct. Each proprotor blade is rotatable about a respective pitch change axis. The proprotor blades are configured to change collective pitch about the pitch change axes. The proprotor blades are extendable along the pitch change axes into various positions including a retracted position and an extended position. The proprotor blades change between the retracted position and the extended position based on the collective pitch of the proprotor blades, thereby controlling a tip gap between the proprotor blades and the duct.
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