Patent ID: 11873092
Assignee: THE BOEING COMPANY
Field: Transport (Mechanical engineering)
Classification: CPC B  F | IPC B  F

Claim 13:
14. The method according to claim 13, wherein:
the step of frictionally coupling the power screw with the anti-back-drive mechanism to prevent rotation of the power screw in the first rotational direction when the first force is applied to the nut in the first axial direction along the power screw comprises:
engaging the first ratchet pawl with the first ratchet gear to prevent the first ratchet gear from rotating in the first rotational direction; and
frictionally coupling the first ratchet gear with the flange via the first friction device to oppose relative rotational motion between the flange and the first ratchet gear; and

the step of measuring the internal loading of the anti-back-drive mechanism when the first force is applied to the nut in the first axial direction along the power screw comprises a step of measuring a first load, applied to the first ratchet pawl by the first ratchet gear.