High pressure gaseous discharge lamp and gas seal

Claim 1

A HIGH-WATTAGE HIGH PRESSURE XENON LAMP COMPRISING A GLASS BULB HAVING OPPOSITELY EXTENDING INTEGRAL HOLLOW LEGS, EACH LEG TERMINATING IN AN EXTERNAL FLANGE, A METAL HERMETIC SEAL FOR EACH LEG, EACH SEAL COMPRISING A BODY HAVING A BORE EXTENDING THERETHROUGH, A SHOULDER INTERMEDIATE THE LENGTH OF SAID BORE, A GASKET ENGAGING SAID SHOULDER, SAID FLANGE BEING DISPOSED IN SAID BORE IN ENGAGEMENT WITH SAID GASKET, CLAMPING MEANS THREADEDLY RECEIVED ON SAID BODY, A SECOND GASKET ENGAGING THE OPPOSITE SURFACE OF SAID FLANGE FROM SAID FIRST GASKET, MEANS INTERPOSED BETWEEN SAID CLAMPING MEANS AND SAID SECOND GASKET, WHEREBY UPON TIGHTENING OF SAID CLAMPING MEANS SAID BODY WILL BE SECURED TO SAID FLANGE IN GAS-TIGHT RELATIONSHIP, SCREW THREADS IN SAID BORE, AN ELONGATED HOLLOW ELECTRODE HOLDER EXTENDING THROUGH SAID BORE AND LEG AND TERMINATING IN SAID BULB, THREADS ON SAID HOLDER ENGAGING THE THREADS IN SAID BORE TO SECURE SAID HOLDER IN PLACE, AN ELECTRODE SECURED TO THE END OF SAID HOLDER IN SAID BULB, INLET AND OUTLET FITTINGS ON SAID HOLDER FOR A COOLING MEDIUM, AND MEANS IN SAID HOLDER PROVIDING INLET AND OUTLET FLOW PATHS FOR SAID COOLING MEDIUM.