US 11,725,687 B2
Anchoring washer for an EME protection cap system
Daniel J. Cowan, North Charleston, SC (US); Bart Stevens, Summerville, SC (US); Sean Auffinger, Ladson, SC (US); Brandon Mulligan, Charleston, SC (US); and Carl A. Weeks, North Charleston, SC (US)
Assigned to The Boeing Company, Chicago, IL (US)
Filed by THE BOEING COMPANY, Chicago, IL (US)
Filed on Jan. 22, 2021, as Appl. No. 17/155,399.
Application 17/155,399 is a division of application No. 15/964,340, filed on Apr. 27, 2018, granted, now 10,920,818.
Prior Publication US 2021/0164513 A1, Jun. 3, 2021
Int. Cl. F16B 39/24 (2006.01); B64D 45/02 (2006.01); F16B 33/00 (2006.01); F16B 37/14 (2006.01)
CPC F16B 39/24 (2013.01) [B64D 45/02 (2013.01); F16B 33/004 (2013.01); F16B 37/14 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A cap system for enclosing a metallic fastener assembly extending through a structure, comprising:
a first securement mechanism positioned about a periphery of a washer of the metallic fastener assembly, wherein the first securement mechanism comprises a first tab member extending in a direction transverse to a plane of a surface of the washer and a second tab member extending in a direction transverse to the plane of the surface of the washer spaced apart from the first tab member about the periphery of the washer; and
a cap member comprising:
a sidewall having an inner surface which defines a cavity dimensioned to receive the washer and defines a second securement mechanism complementary configured to engage the first securement mechanism positioned about the periphery of the washer; and
an end of the sidewall of the cap member defines an opening which provides the washer to have access into the cavity; and
wherein the first and second tab members each comprise a plurality of grooves that face outwardly toward the inner surface of the sidewall.