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:
Dec. 22, 1987
Filed:
Oct. 02, 1986
Applicant:
Inventors:
Samuel J Denison, Marlow, GB;
David P Bashford, Ruislip, GB;
Assignee:
Westland plc, Yeovil, GB;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C / ;
U.S. Cl.
CPC ...
4161 / ; 416141 ; 416-230 ;
Abstract
A helicopter rotor includes a plurality of rotor blades attached to a rotor hub by flexure members adapted during operation to permit pitch changes and flap and lag movements of the rotor blades. Each flexure member comprises a plurality of longitudinally extending reinforcing plates which in cross section extend generally radially from a geometric center of the flexure member and are enclosed in a resilient matrix material.