Patent ID: 11951663
Assignee: DME COMPANY LLC
Field: Other special machines (Mechanical engineering)
Classification: CPC B | IPC B

Claim 19:
20. A method comprising:
translating a distal mold block of a stack mold tool in a first longitudinal direction to rotate a rotatable shaft of a ball screw centering device coupled to the stack mold tool in a first rotation direction, wherein:
a first nut housing of the ball screw centering device is fixed to a stationary mold block of the stack mold tool;
a center bearing housing of the ball screw centering device is fixed to a center mold block of the stack mold tool;
a second nut housing of the ball screw centering device is fixed to the distal mold block of the stack mold tool; and
a first sleeve is connected to and extendable between the center bearing housing and the first nut housing to circumscribe an exposed portion of a first side ball track and an exposed portion of a first nut between the center bearing housing and the first nut housing, the first sleeve being positionable between an unexpanded position and an expanded position.