Robot positioner and seal arrangement for a closed chamber

摘要

A robot positioner for a device which is positioned within a compartment having an open top and including first and second supports mounted above the compartment to move the device along "X" and "Y" coordinates. A flexible cover means associated and movable with each of the first and second supports is provided to in effect provide a movable ceiling for constantly covering the open top of the compartment regardless of the position of the device in the compartment as controlled by the supports.