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NELSON MANDELA METROPOLITAN UNIVERSITY

NELSON MANDELA METROPOLITAN UNIVERSITY Patent applications
Patent application numberTitlePublished
20110198389Friction Welding Apparatus - This invention relates to a friction welding apparatus, and more particularly, but not exclusively, to a modular friction welding apparatus suitable for in-situ reparation of blind holes in pipes. The friction welding apparatus includes a frame assembly, a spindle assembly for holding a friction welding consumable; and a drive assembly for driving a spindle of the spindle assembly. The spindle assembly and the drive assembly are releasably securable to the frame assembly so as to form a modular friction welding apparatus, and the frame assembly is furthermore removable securable to an object to be welded.08-18-2011
20100305332NON-POLAR CAPPED NANO TRANSITION METAL OXIDES AND SULFIDES - The present invention relates to a method for the preparation of a functionalized nano size transition metal oxide or sulfide particle comprising the steps of (a) providing a ternary solvent system comprising a polar solvent, a non-polar solvent and an intermediate solvent allowing miscibility of all three components; (b) providing a mixture of a transition metal salt and a ternary solvent; (c) providing a mixture of a suitable source of oxide or sulfide and the ternary solvent; (d) providing a mixture of a non-polar end capping agent and the non-polar solvent; (e) mixing the mixtures; and (f) recovering the resultant functionalized nano size transition metal oxide or sulfide particle. The invention further relates to non-polar end capped nano sized transition metal oxide or sulfide particle so produced and the use of such particles.12-02-2010