Patent ID: 11919343
Assignee: HEXAGON PURUS NORTH AMERICA HOLDINGS INC.
Field: Transport (Mechanical engineering)
Classification: CPC B  Y | IPC B

Claim 21:
22. A breakaway detection system for detecting impending breakaway between a tractor and a trailer unit of a heavy duty truck, the breakaway detection system comprising:
a spool assembly configured to couple with one of the tractor and the trailer unit, the spool assembly comprising a spool body configured to deploy a length of a tether coupled with the spool body and configured to couple with an energy source supply conduit and to retract the length of the tether and a spring configured to act on the spool body to retract the deployed length, the energy source supply conduit configured to convey a source of energy for use by a motor;
a sensor configured to detect the length of the tether that has been deployed; and
a controller configured to receive an input corresponding to the detected length, to compare the input to a threshold value, and to implement a countermeasure when the detected length exceeds the threshold value.