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| Number | Title | Issue Date |
| 6099755 | Method and composition for inhibiting scale and controlling corrosion in cooling water systems A method and composition for simultaneously controlling the deposition of scale and the formation of corrosion in a cooling water system comprising adding to the system a combination of (a) a water soluble copolymer having the structure: ##STR1## ... | 08/08/2000 |
| 5108626 | Process for recovering course particles from tailings A process for the recovery of coal particles having a maximum dimension of less than 2 mm from coal tailings including the steps of forming a slurry (101) of tailings having a pulp density of from 10 to 30% by weight; feeding the slurry into a hydrocyclon... | 04/28/1992 |
| 4941971 | Apparatus for mounting in an aqueous system, a cartridge filter for filtering the system and in place cleaning the filter A horizontally mounted cylindrical container is adapted to mount through demountable end plates a cartridge filter in the container through demountable end plates for rotation around a lower axis than the center axis of the container. The combination of c... | 07/17/1990 |
| 4539114 | Rotary horizontal table type filter A horizontal rotary table filter includes a device connecting the filter table to the carrier structure which provides freedom of movement between the two in the radial direction, to thereby maintain the filter table in a substantially planar condition un... | 09/03/1985 |
| 4346008 | Rotary drum filter An improved rotary drum filter is described. The filter includes a liquid collection means communicating with at least a plurality of fluid conduits. The collection means collect and discharge residual liquid remaining in the fluid conduits during each ro... | 08/24/1982 |
| 4309288 | Rotary drum filter An improved rotary filter is described. A baffle means is disposed between the filter drum and the filter cloth in substantial alignment with at least some of the circumferential openings in the filter drum to decrease the erosive effects on the filter cl... | 01/05/1982 |
| 4186092 | Vacuum belt filters The invention provides a discharge roller for a vacuum belt filter, over which a filter cloth of the filter passes, the roller having a channelling means in the form of a plurality of longitudinally directed and circumferentially spaced-apart passages whi... | 01/29/1980 |
