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:
Jun. 19, 2018
Filed:
Aug. 14, 2015
The Boeing Company, Chicago, IL (US);
Martin R. Grether, Everett, WA (US);
Troy A. Haworth, Everett, WA (US);
Thomas C. Wittenberg, Everett, WA (US);
THE BOEING COMPANY, Chicago, IL (US);
Abstract
An attachment system and method that includes first and second fittings, a first eccentric bushing positioned within the first fitting, and a second eccentric bushing positioned within the second fitting. The system may include a first friction washer positioned between the first bushing and first fitting and a second friction washer positioned between the second bushing and the second fitting. A coating on the exterior of the friction washers prohibits rotation of the bushings with respect to the fittings. The coating may be a nickel-diamond coating that prohibits rotation even in the presence of a lubricant. The first fitting may be a frame fitting connected to a fuselage of an aircraft and the second fitting may be a beam fitting connected to the floor of the aircraft. The system may include lock plates that engage lock stops to prohibit rotation of the bushings in combination with the coated friction washers.