Replaceable Windows With Alignment and Sealing Features

Window assemblies (see figure) have been developed to satisfy special requirements pertaining to ease of replacement, alignment, sealing, and resistance to vibration in a spaceborne laboratory apparatus for experiments on combustion in microgravity. These window assemblies are also well suited to a variety of terrestrial applications; for example, they could used as observation ports or as mechanical or electrical feedthrough devices on industrial process chambers, vacuum chambers, or oceanographic equipment.