05/12/2016 | 05:58pm EDT
By a News Reporter-Staff News Editor at Journal of Engineering — According to news reporting originating from Alexandria, Virginia, by VerticalNews journalists, a patent by the inventors Heeter, Russell J (Sammamish, WA); Nguyen, Thu A (Mukilteo, WA); Ward, John A (Bonney Lake, WA); Porter, John R (Lynwood, WA); Wilkerson, Jeffrey A (Bothell, WA), filed on February 4, 2013, was published online on May 3, 2016.The assignee for this patent, patent number 9331402, is THE BOEING COMPANY (Chicago, IL).
Reporters obtained the following quote from the background information supplied by the inventors: “In some aerospace applications, it may be desirable to secure structures to each other using a fastener. A fastener having a diameter which is greater than the diameter of a fastener opening provided in the structures to be secured may be forced into the fastener opening to achieve an interference fit of the fastener in the fastener opening. In many cases, a lubricant such as cadmium, for example, may be coated on the fastener shank to provide the necessary lubricity to insert the fastener in the fastener opening. In the case of composite structures and titanium structures, however, it may be desirable to use a sleeved fastener. (…)
via Boeing : Patent Issued for Conductive Sleeved Fastener Assembly (USPTO 9331402) | 4-Traders.