Conveyance arrest system

Abstract

A first conveyance arrest system includes a trolley arrest cylinder comprising a piston rod mechanically coupled a trolley receiver. The trolley receiver engages a conveyance trolley, displaces the piston rod and pressurizes a working fluid within the trolley arrest cylinder. The trolley arrest cylinder comprises a port that vents pressurized fluid within the trolley arrest cylinder and provides a vent resistance to fluid escaping the trolley arrest cylinder. A second conveyance arrest system includes a conveyance trolley slideably coupled to a conveyance guide, and a trolley arrest cylinder mechanically coupled to the conveyance trolley. The second conveyance arrest system also includes a conveyance stop configured to engage a stop engagement end of a piston rod and thereby pressurize fluid within the trolley arrest cylinder in response to movement of the trolley toward the conveyance stop.

Dependencies are inferred from the claim text.