Is a
Patent attributes
Patent Jurisdiction
Patent Number
Date of Patent
December 10, 2019
Patent Application Number
15626825
Date Filed
June 19, 2017
Patent Citations Received
Patent Primary Examiner
Patent abstract
A variable-solidity propeller apparatus, comprising a propeller having at least one rotatable hub carrying at least one row of propeller blades, wherein the propeller has a first configuration in which the propeller has a first average solidity, and a second configuration in which the propeller has a second average solidity which is greater than the first average solidity.
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