Did You Know...
...that when IBM conducted a market study of Chester Carlson's invention in 1959, the company concluded that it would take only 5000 units of his new product to saturate the market? IBM therefore declined to be part of the new product introduction. Too bad for IBM. Carlson's invention was the xerography process, and his new product was the beginning of the Xerox Corporation. It is estimated that every day, worldwide, 3,000,000,000 copies are made!!
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| Number | Title | Issue Date |
| 7204439 | Apparatus and process for control of rotary breakers Efficient process control of a rotary breaker is dependent upon the rate at which aggregate material is delivered to the rotary breaker. An improved pre-screening apparatus provides enhanced control of the amount of undersized material allowed to bypass the rotary b... | 04/17/2007 |
| 7172414 | Rotary tubular kiln for the production of activated carbon The present invention relates to a rotary tube (1), in particular for a rotary tubular kiln for the production of activated carbon, said rotary tube (1) having a plurality of mixing elements (3), in particular metal turning plates, said mixing e... | 02/06/2007 |
| 5899394 | Ring roller mill A method for grinding of material in a ring roller mill having at least one grinding ring, at least one roller fitted in the grinding ring and at least one unit fitted between the roller and the grinding ring. The method includes the steps of operating th... | 05/04/1999 |
| 5897068 | Agitator mill An agitator mill comprises an annular cylindrical exterior grinding chamber, which is defined by an interior wall of a grinding receptacle and an outer wall of a rotor, and an interior grinding chamber, which is defined by an inner wall of the rotor and a... | 04/27/1999 |
| 5390866 | Mill drum According to the invention there is provided a mill drum comprising a hollow drum structure in use mounted to rotate about a substantially horizontal axis extending longitudinally through the bore of the drum structure. The drum structure including lifter... | 02/21/1995 |
| 5056722 | Tube mill partition The invention relates to a tube mill partition as the discharge or transfer wall. With a view to an improved air passage and a simple material flow regulation, in the case of this partition a substantially tubular central part is used, in that a rotary an... | 10/15/1991 |
| 4919347 | Dispersing and grinding apparatus A dispersing and grinding apparatus comprises a vessel having an inlet at one end for supplying material which is to be ground and dispersed, and an outlet at the other end to discharge the ground and dispersed material. A rotor is rotatably disposed with... | 04/24/1990 |
| 4705222 | Multipurpose mixer A multipurpose mixer useful for performing horizontal and vertical mixing operations with a single apparatus. Mixing element assemblies are replaceable by removal of a first end of a drum. The mixing operations are performed by rotation of an axially disp... | 11/10/1987 |
| 4674691 | Dual sand reclaimer A dual sand reclaimer comprising a drum formed of an inner and outer cylinder, substantially along its length, the drum being formed into three segments, an entrance segment wherein the castings are initially deposited for removal of its green mold sand, ... | 06/23/1987 |
| 4668183 | Lifting element for pipe coolers for material produced at least partially in lumps A lifting element (5) for pipe coolers for material produced at least partially in lumps, e.g. clinker, has a mounting portion (8) fixed to the shell (1) of the pipe cooler, and a carrier portion (9) which extends essentially at right angles thereto and c... | 05/26/1987 |
| 4369926 | Method and apparatus for grinding granular materials The invention relates to a method of and apparatus for dry grinding a granular material in a grinding tube mill (1) having a final grinding compartment (2) and one or more preceding grinding compartments (3) containing grinding bodies. The material, after... | 01/25/1983 |
| 4323199 | Mill liner for dry autogenous mills A mill liner for a dry autogenous mill includes low profile end liner elements at the ends of the mill incorporating radial ribs with proper height to provide significantly improved mill performance without sacrificing the grinding efficiency. Shell liner... | 04/06/1982 |
| 4290750 | Cementitious products A rotating kiln or cooler for use in the manufacture of cementitious materials comprises a tubular body (1) mounted for rotation about the longitudinal axis thereof, a material being fed into the body at one end and removed at the other end. Air or combus... | 09/22/1981 |
| 3990644 | Lifting wall for tube mills A lifting wall adapted to be incorporated in a rotary tube mill comprises an annular support frame defined by a pair of spaced apart discs between which is secured a plurality of circumferentially spaced, radial lifting blades. The radially outer end of e... | 11/09/1976 |
