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, 2007
Filed:
Jun. 02, 2006
Applicant:
Mark Winfield Scott, Bethany, CT (US);
Inventor:
Mark Winfield Scott, Bethany, CT (US);
Assignee:
Sikorsky Aircraft Corporation, Stratford, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C 11/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A dual, counter rotating, coaxial rotor system provides an upper and lower rotor system, with a reduced axial rotor separation distance along a common axis by way of rotor tip position sensing and rotor position controls to avoid tip contact.