Patent ID: 11874077
Assignee: STONEAGE, INC.
Field: Thermal processes and apparatus (Mechanical engineering)
Classification: CPC F  B | IPC B  F

Claim 14:
15. A flexible high pressure fluid cleaning lance drive apparatus comprising:
at least one drive motor that provides a driving force for advancing and retracting one or more flexible lance hoses;
a first sensor that monitors the drive motor for determining an expected feed distance of the one or more flexible lance hoses;
a plurality of second sensors for determining an actual feed distance of each flexible lance hose of the one or more flexible lance hoses;
a first comparator coupled to the first sensor and each second sensor, wherein the first comparator is operable to determine a mismatch between the expected feed distance of the one or more flexible lance hoses and the actual feed distance of each flexible lance hose; and
a second comparator coupled to each of the second sensors operable to determine a mismatch between the actual feed distance of each flexible lance hose.