US 12,065,612 B1
Bistable system for the controlled release of corrosion inhibitors
Layan Alaeddin AlSharif, Dhahran (SA)
Assigned to Saudi Arabian Oil Company, Dhahran (SA)
Filed by Saudi Arabian Oil Company, Dhahran (SA)
Filed on Jul. 27, 2023, as Appl. No. 18/360,426.
Int. Cl. C09K 8/54 (2006.01); C09K 8/035 (2006.01)
CPC C09K 8/54 (2013.01) [C09K 8/035 (2013.01); C09K 2208/32 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A system, comprising:
a protective casing comprising sidewalls comprising valve-like holes, the sidewalls defining a central channel, the central channel comprising:
a bistable dome configured to have a first state and a second state different from the first state;
a cationic hydrogel; and
an internal space defined by the sidewalls of the protective casing and the bistable dome;
wherein:
at least a portion of cationic hydrogel is in fluid communication with a space outside the system;
in the first state of the bistable dome, the internal space is not in fluid communication with the space outside the system; and
in the second state of the bistable dome, the internal space is in fluid communication with the space outside the system via the valve-like holes.