Abstract: The invention relates to a ceramic hip joint prosthesis head for use with a trunnion, the trunnion having a frustoconical end comprising a first section having a diameter of about 12 mm which expands inward at a total angle of about 6 degrees to form a second section having a diameter of about 14 mm, wherein each head comprises:a) a substantially spherical outer diameter of about 22.

Abstract: A reversible adapter designed to be disposed between the bottom of a standard mixer tap cartridge and the bottom of a standard mixer tap body chamber, said bottoms conforming to a substantially circular common design, with two inlet locations disposed symmetrically about a diameter, includes:a rigid part (10) having a transverse surface (11) flanked by a skirt (12) and including two inlet locations, two half-moon shape openings (17, 18) respectively radially inside and radially outside a half-circle,one of two elastic material seals, the first of which includes two angularly offset chambers respectively surrounding the inlet locations and the second (40) of which includes two concentric circumferential chambers disposed on radially opposite sides of this semicircle, and each of which includes, at its end axially aligned with one of the half-moons, a web (40F, 40G) defining, facing that half-moon, a cup the depth of which increases in the direction towards the other end.

Abstract: A mixer tap cartridge including a body (10) having a bush (23) with a reference axis, internal flowrate adjustment members disposed inside the body and a lever (20) cooperating with these internal members to adjust the flowrate hinged to the bush (23) about a transverse pin (24) and having an exterior part (21) projecting out of the body, the lever and the bush having complementary bearing surfaces (25, 26) conjointly defining an extreme flowrate configuration of the lever, characterised in that the bearing surface (25) of the lever is part of a projecting portion of a pin (27) sliding in a transverse hole (28) in the lever, this pin cooperating with an adjustment member (31) mobile in a housing (30) in the lever accessible from outside the cartridge.

Abstract: The present invention relates to novel alumina-based ceramic composition containing a compound capable of forming a spinel-type aluminate phase detectable by x-ray diffraction, the composition having particular advantage for use as a water faucet seal.

Abstract: A ceramic composition for sintering into sliding parts contains:at least 90% by weight alumina,1.7% by weight to 2% by weight Mn.sub.3 O.sub.4,0.8% by weight to 1% by weight TiO.sub.2,0.5% by weight to 1.5% by weight SiO.sub.2,0.6% by weight to 1.2% by weight CoO,not more than 1% by weight MgO,not more than 0.4% by weight Fe.sub.2 O.sub.3,the remainder, up to 0.5% in total, comprising impurities.After sintering, this composition produces sliding parts containing manganese aluminate and/or cobalt aluminate phases.