US 11,885,028 B2
Method of selectively interrupting a passive cathodic protection unit from a metallic structure
Antonio Laranjo da Costa, Calgary (CA); Lucas Kiese Holzen, Calgary (CA); and Philip James Daum, Calgary (CA)
Assigned to Mobiltax Data Ltd., Calgary (CA)
Filed by Mobiltex Data Ltd., Calgary (CA)
Filed on Nov. 8, 2022, as Appl. No. 18/053,672.
Application 18/053,672 is a division of application No. 16/869,138, filed on May 7, 2020, granted, now 11,753,729.
Prior Publication US 2023/0070863 A1, Mar. 9, 2023
Int. Cl. C23F 13/04 (2006.01); C23F 13/06 (2006.01); G05B 15/02 (2006.01)
CPC C23F 13/04 (2013.01) [C23F 13/06 (2013.01); G05B 15/02 (2013.01)] 9 Claims
OG exemplary drawing
 
1. A method for changing an activation state of an interruption module for selectively interrupting at least one passive cathodic protection unit from a metallic structure, the method comprising the steps of:
enabling a global positioning system (GPS) receiver in data communication with a controller of the interruption module;
receiving GPS time via the GPS receiver from at least one global positioning system satellite in data communication therewith;
synchronizing a real-time clock time of a real-time clock in data communication with the controller to GPS time;
disabling the GPS receiver; and
changing the activation state of the interruption module if a predetermined activation state change time of the interruption module is between the local real-time clock time and the GPS time to selectively electrically couple or electrically decouple the at least one passive cathodic protection unit from the metallic structure.