Patent ID: 9689129
Date: 2017-06-27
CPC Classifications: E02B

Claim:
1. A self-activating flood barrier including a chamber ( 1 ) having first and second side walls ( 3 , 5 ), a dam member ( 9 ) adapted to self-deploy in the event of a flood to inhibit the passage of water to a region to be protected, and a low-friction device ( 77 , 79 ) positioned between the dam member and at least one of the first and second side walls of the chamber when the dam member is deployed so as to prevent jamming between the dam member and the at least one side wall, wherein at least one side wall ( 13 ) of the dam member ( 9 ) is inclined such that the dam member is narrower in an upper region thereof compared with a lower region thereof and wherein a complementary inclined surface ( 15 ) is provided on a support block ( 17 , 51 ), the support block including a pivoting component ( 63 ) pivotably mounted to the side wall ( 3 , 5 ) of the chamber ( 1 ) and positioned at an upper region of the corresponding side wall ( 3 , 5 ) of the chamber ( 1 ) so as to engage with the inclined side wall of the dam member when the dam member is deployed, and a secondary deployment means including at least one inflatable air bag ( 27 ) disposed beneath the dam member ( 9 ).