5/7/2003Edgar L. Black IIT MICE Integration Meeting Hydrogen/Focus Module Components Details development May 9, 1003

5/7/2003Edgar L. Black IIT This design proposes an attachment for the windows assembly using Garlock Helicoflex or equivalent seal and a periphery wedge retainer for both, absorber and manifold windows. A tool is designed to protect the delicate windows for handling and to aid on the installation and removal of the windows from either of the chambers WINDOW INSERTION TOOL Tool/window assembly Manifold housing Vacuum chamber

5/7/2003Edgar L. Black IIT The seals are installed in grooves machined in the manifold or vacuum chamber seating flange for the window. The tool outer housing is bayonet inserted and locked in to the manifold or chamber shell which becomes the fulcrum for the operation of the tool Seating flange Bayonet connection

5/7/2003Edgar L. Black IIT The window is attached to the lead end of the tool plunger then it is guide positioned on to the window seat By an integral mechanical device of the tool, the plunger is actuated to develop the operating compression of the seals ~800 lb/in Helium sealing force. Helium sealing level: Q< atm cm 3 /s Plunger Housing

5/7/2003Edgar L. Black IIT With the same tool a wedge shaped retaining ring is expanded in to the groove at the periphery of the manifold shell, wedging the window in place and maintaining the required operating compression for the seals at all temperature and pressure variations Retaining ring

5/7/2003Edgar L. Black IIT The window/plunger attachment is unlocked, the plunger is retracted and the tool assembly is removed. To remove a window the process is in reverse