US 12,410,606 B2
Expansion joint
Mark Brown, Prestatyn (GB); and Craig Alan Jones, Prestatyn (GB)
Assigned to RENTOKIL INITIAL 1927 PLC, (GB)
Appl. No. 18/027,247
Filed by RENTOKIL INITIAL 1927 PLC, Crawley (GB)
PCT Filed Sep. 13, 2021, PCT No. PCT/GB2021/052372
§ 371(c)(1), (2) Date Mar. 20, 2023,
PCT Pub. No. WO2022/064175, PCT Pub. Date Mar. 31, 2022.
Claims priority of application No. 2014939 (GB), filed on Sep. 22, 2020.
Prior Publication US 2023/0374779 A1, Nov. 23, 2023
Int. Cl. E04B 1/68 (2006.01); E04B 1/72 (2006.01)
CPC E04B 1/6812 (2013.01) [E04B 1/72 (2013.01)] 11 Claims
OG exemplary drawing
 
1. An expansion joint for providing a rodent-proof barrier, the expansion joint comprising:
an elongate core formed of a resiliently deformable material, the elongate core comprising an elongate portion and first and second ends; and
a flexible sheath of a barrier material covering at least a part of the elongate portion of the elongate core;
wherein the elongate portion of the elongate core is compressible in a direction perpendicular to a line between the first and second ends of the elongate core, the elongate core being arranged to be compressed and inserted into a gap between first and second building structures, and to expand after insertion into the gap so that the expansion joint is held in place within the gap by friction between the surface of the flexible sheath and the surfaces of the first and second building structures,
and wherein the flexible sheath is formed of woven metal wire.