The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Jun. 23, 2026
Filed:
Jan. 22, 2025
Cub Crafters, Inc., Yakima, WA (US);
David G. Ullman, Independence, OR (US);
Vincent H. Homer, Independence, OR (US);
Patrick J. Horgan, Naches, WA (US);
Cub Crafters, Inc., Yakima, WA (US);
Abstract
The present invention is a powered electric lift augmentation systems (ELAS's) to add drag while minimally reducing or enhancing the lift augmentation of an airplane. At least one ELAS is attached to an airfoil, and each ELAS comprises: a nacelle; and electric duct fan (EDF) housed within the nacelle; an optional pylon perpendicularly connected beneath the nacelle; an optional slat; and one or more drag elements, pivotably connected through a range of angles to airflow. Each drag element comprises a hinged plate, or a pair of opposing plates, connected to a pilot's control element able to rotate the plates to create a range of drag levels or to stow away. The drag elements are connected to the airfoil leading edge, the nacelle, pylon, or slat; and may further comprises holes. As ELAS assembly may comprise one or more ELAS systems attached to an airfoil (aerodynamic lifting element—ALE).