US 12,089,383 B2
Expansion joint sealing system having shielding properties
William Witherspoon, Guelph (CA); and Lester Hensley, Westborough, MA (US)
Assigned to SIKA TECHNOLOGY AG, Baar (CH)
Appl. No. 17/635,798
Filed by SIKA TECHNOLOGY AG, Baar (CH)
PCT Filed Aug. 17, 2020, PCT No. PCT/US2020/046684
§ 371(c)(1), (2) Date Feb. 16, 2022,
PCT Pub. No. WO2021/034768, PCT Pub. Date Feb. 25, 2021.
Claims priority of provisional application 62/887,877, filed on Aug. 16, 2019.
Prior Publication US 2022/0295676 A1, Sep. 15, 2022
Int. Cl. H05K 9/00 (2006.01); E04B 1/68 (2006.01); E04B 1/94 (2006.01)
CPC H05K 9/0015 (2013.01) [E04B 1/6812 (2013.01); E04B 1/948 (2013.01)] 35 Claims
OG exemplary drawing
 
1. An expansion joint sealing system that is attached to two adjacent building substrates in a building structure, the expansion joint sealing system comprising:
a core body; and
an electronic shielding material introduced in the core body;
wherein the core body including the electronic shielding material is configured to expand and contract between the building substrates forming an expansion joint to accommodate movement of the building substrates, to pass movement cycling testing of UL 2079, to maintain a seal of the expansion joint, and to attenuate a range of frequencies through the expansion joint.