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. 05, 1982
Filed:
Feb. 04, 1981
Abstract
The rotor blades of a rotary wing aircraft are mounted at their blade roots pon a rotor head formed as an integral body of composite fiber material shaped to define a plurality of bifurcated rotor blade support arms between which the blade roots are mounted. Each of the blades is formed, at least in the region of the blade roots, with a laminated configuration including at least two layers formed with a fiber loop having a unidirectional fiber orientation extending longitudinally of the rotor blade and about a load-bearing connection between the blade root and the rotor head. An intermediate layer having a crosswise fiber orientation is provided between each of the at least two layers of the blade root which integrally joins the two layers and the fiber loop is enclosed by support members at its longitudinal edges at the inside and outside thereof at least in the region of the load-bearing connection.