PLASMA CRUCIBLE SEALING

A plasma crucible (92) has a through bore (93) and two tubes (981,982) butt sealed on to the end faces (901,902) of the crucible. One (981) of the tubes is closed prior to the filling of the crucible. The tube is tipped off and worked in a glass lathe to form it to have a flat end (983). After evacu...

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Bibliographic Details
Main Authors NEATE, ANDREW SIMON, PRESTON, BARRY
Format Patent
LanguageEnglish
French
Published 09.01.2014
Subjects
BASIC ELECTRIC ELEMENTS
ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
ELECTRICITY
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Summary:A plasma crucible (92) has a through bore (93) and two tubes (981,982) butt sealed on to the end faces (901,902) of the crucible. One (981) of the tubes is closed prior to the filling of the crucible. The tube is tipped off and worked in a glass lathe to form it to have a flat end (983). After evacuation, dosing and gas fill, the end (983) is heated to drive off impurities in the dose, with its active constituent condensing within the bore (93). Then, the other tube (902) is tipped off in the similar manner. La présente invention porte sur un creuset à plasma (92) qui a un alésage traversant (93) et deux tubes (981, 982) scellés bout à bout sur les faces d'extrémité (901, 902) du creuset. L'un (981) des tubes est fermé avant le remplissage du creuset. Le tube est coupé et on façonne le tube dans un tour à verre pour lui donner une forme présentant une extrémité plate (983). Après mise sous vide, dosage et remplissage de gaz, l'extrémité (983) est chauffée pour chasser des impuretés dans la dose, ayant son constituant actif se condensant dans l'alésage (93). Ensuite, l'autre tube (902) est coupé d'une manière similaire.
Bibliography:Application Number: WO2013GB51174