Steel cables on fitness equipment, through repeated use, will build up undesired torque, due to irregular and unpredictable turns and spins. Such accumulated and undesired torque has a tendency to cause the cable to derail from the grooves on the gears it is supposed to stay and slide. The grab bar or...http://www.google.ca/patents/US20050266968?utm_source=gb-gplus-sharePatent US20050266968 - Torque releasing mechanism for fitness training equipment