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:
Mar. 23, 1982
Filed:
Apr. 22, 1980
Alois Schwarz, Putzbrunn, DE;
Karlheinz Mautz, Ottobrunn, DE;
Abstract
In a rotor for a rotary wing aircraft, an integral central headpiece supps the rotor blades. The headpiece consists of two plates interconnected by a centrally arranged distance member. Each plate has a similar star-shape with at least four angularly spaced point-like arms. Each plate is formed of a number of superposed layers with each layer containing continuous loops extending in the direction of the point-like arms. At least one loop extends from one point-like arm into another diametrically opposite point-like arm. Others of the loops, located in the other point-like arms, extend radially outwardly from the loop extending through the two point-like arms. The headpiece consisting of the plates and distance member, is a unitary or integral structure.