Torque-Limiting Torque Sleeve with Fail-Safe Failure Mode

摘要

A torque-limiting torque sleeve may include an inner sleeve and an outer sleeve configured to be coupled to one another in a coaxial arrangement such that the outer sleeve is fixed relative to the inner sleeve in the longitudinal direction. A first end of the outer sleeve overlies a first end of the inner sleeve, and a second end of the inner sleeve extends from the outer sleeve to provide an exposed length. A torque limiting feature is configured such that rotation of the outer member in a first direction enables tightening of a coupler on an interface port up to a predetermined torque limit, and rotation of the outer member in a second direction opposite to the first direction loosens the coupler on the interface port. In the event that the torque limiting feature fails such that rotation of the outer member in the first and second directions does not tighten or loosen the coupler on the interface port, the exposed length of the inner member is gripable by a user to tighten or loosen the coupler on the interface port.