Patent ID: 11879488
Assignee: THE BOEING COMPANY
Field: Mechanical elements (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 0:
1. A fastener assembly comprising:
a bolt having a head and a shank, wherein:
the shank defines threads;
the bolt defines a channel which extends circumferentially about the bolt; and
the head defines multiple head channels each having a first end in communication with the channel and a second end in communication with an outside of the head positioned at a top surface of the head; and

a sleeve including an outer surface and an inner surface opposing the outer surface, and wherein the inner surface has threads engaging the threads of the bolt when the bolt is positioned inside of the sleeve, wherein the sleeve includes:
a first portion and a second portion that extends from the first portion;
a portion of the sleeve formed of an annealed material to define an annealed portion;
multiple slots defined through the sleeve, and the annealed portion of the sleeve is disposed between the multiple slots and the threads of the sleeve;
each of the multiple slots defined through the sleeve is positioned in communication with the channel of the bolt when the bolt is positioned inside of the sleeve; and
each of the multiple slots extend in a curvilinear direction along the second portion of the sleeve between a first end portion and a second end portion of each respective ones of the multiple slots, wherein the first end portion of each of the multiple slots is disposed proximal to the first portion of the sleeve and the second end portion of each of the respective multiple slots is disposed proximal to the annealed portion of the sleeve, wherein the second end portion of each of the multiple slots is disposed forward of the corresponding first end portion of respective ones of the multiple slots relative to a clockwise direction around a central axis when viewing the sleeve from a top plan orientation, and wherein a configuration of the multiple slots is maintained when a torque is applied to the sleeve in response to clockwise rotation of the bolt relative to the central axis.