Nude ion gage assembly

Claim 1

A NUDE ION GAGE ASSEMBLY COMPRISING: A CERAMIC BASE HAVING AN UPER AND LOWER SEALING SURFACE THAT IS SMOOTH AND SUBSTANTIALLY FLAT AND PROVIDED WITH A PLURALITY OF APERTURES EXTENDING THERETHROUGH, SAID BASE SERVING AS THE MOUNTING PLATE OF AN ION GAGE; ELECTRICALLY CONDUCTIVE SUPPORTS EXTENDING THROUGH SAID APERTURES; MEANS SEALING SAID SUPPORTS TO SAID CERAMIC BASE; FIRST AND SECOND METAL RETAINER MEMBERS EACH HAVING TWO SMOOTH AND SUBSTANTIALLY FLAT SEALING SURFACES, SAID MEMBERS BEING OF GENERALLY HOLLOW CONFIGURATION; SAID RETAINER MEMBERS BEING DISPOSED IN CONFRONTING RELATION, SAID BASE BEING INTERPOSED BETWEEN SAID CONFRONTING RETAINER MEMBERS WHEREBY SAID CONDUCTIVE SUPPORTS ARE DISPOSED WITHIN THE BORE OF AT LEAST ONE OF SAID MEMBERS; A FIRST ANNULAR MEMBERS INTERPOSED BETWEEN ONE OF THE SEALING SURFACES OF SAID FIRST RETAINING MEMBER AND SAID UPPER SEALING SURFACE OF SAID CERAMIC BASE; A SECOND ANNULAR MEMBER INTERPOSED BETWEEN THE OTHER OF THE SEALING SURFACES THEREOF SAID SECOND RETAINER MEMBER AND SAID LOWER SEALING SURFACE OF SAID CERAMIC BASE, SAID ELECTRICALLY CONDUCTIVE SUPPORTS BEING DISPOSED INWARDLY OF SAID ANNULAR MEMBERS;