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Mat Forming Apparatus, Bernard C. H. Sun
Mat Forming Apparatus, Bernard C. H. Sun
Michigan Tech Patents
Mat forming apparatus comprising, in combination, a hollow material transporting member, drive structure for producing a pressure differential across spaced portions of the transporting member so that material is propelled from one of the spaced portions to the other within the hollow transporting member, material directing structure communicating with the drive structure for receiving material from the hollow transporting structure and, responsive to the drive structure, operative to direct the received material in a predetermined path, the hollow transporting member having a non-linear inner surface so that flow in the hollow transporting member is turbulent causing the material being transported …
High Strength Alumina And Process For Producing Same, James M. Staehler, William W. Predebon, Bruce J. Pletka
High Strength Alumina And Process For Producing Same, James M. Staehler, William W. Predebon, Bruce J. Pletka
Michigan Tech Patents
A vacuum hot pressed alumina material having small, isometric grains; a uniform distribution thereof; relatively low, predominantly transgranular porosity; and a density approaching the theoretical density of pure alumina produced by vacuum hot pressing alumina powder which contains at least 98.0% alumina, is substantially free of any sintering aids or any other additives, and has a median particle size less than about 3 microns, in a vacuum hot press operated at a temperature of at least about 1350° C. and a pressure of at least 28 MPa (3500 PSI) for a sintering period of at least 1.5 hours. The vacuum …
Flotation Column With Adjustable Supported Baffles, Surendra K. Kawatra, Timothy C. Eisele
Flotation Column With Adjustable Supported Baffles, Surendra K. Kawatra, Timothy C. Eisele
Michigan Tech Patents
An apparatus for separating by froth flotation hydro- phobic and hydrophilic particles contained in an aqueous slurry, the apparatus comprising a generally vertical tubular column having an upper froth zone, an upper separation zone, a lower separation zone, an air inlet zone, and an intermediate feed inlet zone; a feed inlet, air inlet, froth outlet and a tailings outlet; an upper baffle unit comprising a plurality of horizontally extending upper baffle plates, a vertical upper support member including an upper end portion, and first upper apparatus for removably mounting the upper baffle plates on the upper support member at predetermined …