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:
Oct. 06, 1981
Filed:
Oct. 27, 1978
Applicant:
Inventors:
Vas H Brogdon, Hurst, TX (US);
David L Williams, Smithfield, TX (US);
Assignee:
Textron Inc., Providence, RI (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B64C / ;
U.S. Cl.
CPC ...
4161 / ; 416141 ; 416230 ;
Abstract
A rotor yoke (10) for coupling helicopter blades to a rotatable support mast (12) utilizes a novel laminated construction. Layers (30) of unidirectional fibers and layers (32) of bias ply fibers are arranged in alternating sequence to form an elongate loop structure. At least some of the bias ply layers (32) extend between the sides of the loop to form a transverse central section (20). Further, at least some of the bias ply layers (32) include gaps to provide flexure areas (24) in the sides of the yoke (10).