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:
Jul. 30, 2002
Filed:
Aug. 18, 2000
James E. Smith, Bruceton Mills, WV (US);
John L. Loth, Morgantown, WV (US);
Robert P. M. Craven, Cookeville, TN (US);
Robert Bond, Blossburg, PA (US);
West Virginia University, Morgantown, WV (US);
Abstract
A dynamic fluid control surface, e.g., a rotor blade of a helicopter, having a blowing slot extending the entire length of the leading and trailing edges of the dynamic fluid control surface, an internal chamber containing a pressurized fluid, e.g., air, and one or more piezoelectric actuators positioned along the length of the blowing slots and connected to the internal chamber. The piezoelectric actuators are controlled by a computer system to regulate the flow of fluid released through the blowing slot. There may be one or more blowing slots on either just the trailing edge of a dynamic fluid control surface or on both the leading edge and the trailing edge of the dynamic fluid control surface.