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:
Aug. 29, 2006
Filed:
Aug. 02, 2002
Norman Kuhns, Euless, TX (US);
Ajay Sehgal, Leonardtown, MD (US);
Ernest Powell, Bedford, TX (US);
Bell Helicopter Textron Inc., Fort Worth, TX (US);
Abstract
A helicopter main rotor blade balance weight retention system and assembly having a base plate (), at least one support post () integral with the base plate and extending out perpendicularly from the base plate, a plurality of balance weights (), a retaining nut plate (), and one or more fastening bolts () for securing the balance weights to the base plate, and the base plate to the rotor blade. The balance weights () include apertures () through which the support posts and the fastening bolts pass. The apertures through which the support posts pass are dimensioned such that the a snug fit is formed between the support posts and the balance weight; but the apertures through which the fastening bolts pass are dimensioned such that the threaded portions of the fastening bolts are not subjected to any shear loads from the balance weights due to the centrifugal force generated by the rotating rotor blades. The weight retention assembly is installed into pockets in the blade tip.