Magnetometer housing

Claim 1

AN UNDERWATER MAGNETOMETER HOUSING COMPRISING: A PAIR OF CUP-SHAPED CERAMIC MEMBERS BEING CLOSED AT ONE END AND TERMINATING AT THE OTHER END IN A FLAT ANNULAR SURFACE, EACH OF SAID MEMBERS HAVING FORMED THEREON A PLURALITY OF ANNULAR GROOVES DEFINING A SERIES OF ANNULAR RIBS, WHEREIN EACH OF SAID RIBS IS COMPRISED OF FIRST AND SECOND INCLINED INTERSECTING ANNULAR WALL PORTIONS OF UNEQUAL WIDTHS AND THE WALL PORTION NEAREST THE FLAT ANNULAR SURFACE OF THE CUP-SHAPED MEMBER IS NARROWER THAN THE OTHER INCLINED WALL PORTION, SAID CUP-SHAPED MEMBERS BEING DISPOSED OPPOSITE ONE ANOTHER WITH THE FLAT ANNULAR SURFACES THEREOF IN CONTACTING RELATIONSHIP, THEREBY FORMING A CLOSED HOUSING HAVING A SUBSTANTIALLY SMOOTH EXTERIOR SURFACE, A FIRST CLAMPING RING REMOVABLY SECURED TO THE OUTER PERIPHERAL SURFACE OF ONE OF SAID CUP-SHAPED MEMBERS AND HAVING A COMPLEMENTARY SERIES OF ANNULAR GROOVES FORMED THEREIN TO DEFINE A SERIES OF ANNULAR RIBS ON THE INNER PERIPHERAL SURFACE THEREOF IN INTERLOCKING CONTACT WITH THE ANNULAR RIBS OF SAID CUPSHAPED MEMBER, A SECOND CLAMPING RING REMOVABLY SECURED TO THE OUTER PERIPHERAL SURFACE OF THE OTHER OF SAID CUP-SHAPED MEMBERS AND HAVING A COMPLEMENTARY SERIES OF ANNULAR GROOVES FORMED THEREIN TO DEFINE A SERIES OF ANNULAR RIBS ON THE INNER PERIPHERAL SURFACE THEREOF IN INTERLOCKING CONTACT WITH THE ANNULAR RIBS OF SAID CUP-SHAPED MEMBER, SAID CLAMPING RINGS EACH HAVING A PLURALITY OF THROUGH BORES FORMED THEREIN, SAID BORES BEING COAXIAL WITH THE AXES OF SAID RINGS AND BEING SPACED CIRCUMFERENTIALLY AROUND SAID RINGS, AND A PLURALITY OF BOLTS EXTENDING THROUGH ALIGNED BORES IN SAID ANNULAR RINGS AND APPLYING FORCE TO SAID ANNULAR RINGS TO MOVE THE RINGS AXIALLY TOWARD ONE ANOTHER AND THEREBY DEVELOP COMPRESSIVE FORCES IN THE WALLS OF SAID CUP-SHAPED MEMBERS TO PRODUCE A WATERTIGHT SEAL AT THE JUNCTURE OF SAID FLAT ANNULAR SURFACES.