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:
May. 01, 1984
Filed:
Feb. 01, 1982
Lawrence K Hueberger, Reno, NV (US);
OMAC, Inc., Reno, NV (US);
Abstract
A Kreuger flap is hinge-mounted to the leading edge of an aircraft wing by a plurality of hinges hinged at one end internally of the wing, near its leading edge, and at the other end to the rear surface of the Kreuger flap. A torsion tube extending longitudinally through the wing over the length occupied by the Kreuger flap and to the rear of the hinge connection to the wing, is forcibly rotated by a single hydraulic cylinder connected to a crank arm fixed to and projecting radially from the torsion tube. A coil spring fixed at one end to the wing and at its opposite end to a second arm projecting radially from one end of the torsion tube, is moved overcenter during arm movement between first and second position during Kreuger flap extension and retraction and biases the Kreuger flap towards retraction. Toggle links connect the torsion tube to respective hinges with the toggle links also forming an overcenter mechanism for mechanically locking the flaps in projected position when the hydraulic cylinder drive terminates.