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| Number | Title | Issue Date |
| 5505786 | Method for treating surface oxides on a metal alloy strip A system for descaling a strip of metal includes a nozzle assembly mounted within a spray box for spraying descaling product on the strip. The nozzle assembly includes a spray chamber; nozzles mounted directly to the spray chamber; and a heater for heatin... | 04/09/1996 |
| 4828814 | Process for purification of solid material A process is disclosed for producing a solid material which, in some cases, may have a resultant purity of 99.999% or better which comprises contacting the solid material at a temperature approaching the melting point of the solid material with a purifyin... | 05/09/1989 |
| 4818303 | Method and apparatus for settling sludge A method and apparatus for improved settling and handling of sludge in a fused salt bath for treating materials is provided. The apparatus includes a tank divided into a work zone and a salt processing zone, with the salt processing zone having a salt rec... | 04/04/1989 |
| 4789410 | Method for heat treating and quenching complex metal components using salt baths Salt bath techniques are used to heat treat and quench a metal component. The component is first heated to the required heat treatment temperature while disposed within a sealed, first salt bath. Then, while still within the first salt bath, the component... | 12/06/1988 |
