Did You Know...
...When G.G. Hubbard learned of his future son-in-law's invention, he called it "only a toy." His daughter was engaged to a young man named Alexander Graham Bell.
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| Number | Title | Issue Date |
| 7374049 | Screening plant A screening plant having a main frame, a trammel drum mounted on the main frame to be rotatable about a rotational axis at a small angle to the horizontal, and having an input end and an opposite discharge end at a lower end than the input end, screening apertures p... | 05/20/2008 |
| 6206199 | Method and an apparatus for recycling different components in a multiple layer material In order to recover the various components of multiple layer materials, a method uses a refiner or disperser including mutually opposing rotating discs having material engaging surfaces or elements such as teeth. The method includes: adjusting a gap betwe... | 03/27/2001 |
| 6193072 | Sifting machine with axial removal of screen, rotor, worm conveyor and drives for cleaning and maintenance A sifting machine comprises a stationary sifting basket, a rotor rotating within the sifting basket and a worm conveyor feeding into an end of the sifting basket for dosing and introducing the material to be sifted. The rotor and the worm conveyor are dri... | 02/27/2001 |
| 6065606 | Elevatable frame for transportable sorting machines A transportable sorting machine frame formed of first and second frame sections which are hinged together is provided. The sorting machine is mounted to one frame section and an infeed conveyor is mounted to the other. A pair of elevational jacks located ... | 05/23/2000 |
| 5967334 | In-situ self-cleaning feed system for separation equipment A process and apparatus that allows a portion of a feed system to be cleaned quickly by sequentially closing a feed passageway which leads to a sieve section; rotation of the sieve section to an upside-down position to allow blocking clumps of particles t... | 10/19/1999 |
| 5593042 | Quality-control sieve and method of using it The novel invention proposes a final screen which is very reliable in operation and which is suitable more particularly also for building into a pneumatic conveying line. In a first section the material is distributed uniformly over the entire peripheral ... | 01/14/1997 |
| 5398814 | Granular material conveying apparatus with perforated center tube A granular material conveying system for conveying granular materials and filtering fine particles from the granular materials is configured for rotatably conveying granular materials about an axis in a longitudinal direction along the axis. The system in... | 03/21/1995 |
| 5292076 | Apparatus for comminuting, crushing and disagglomeration of solids dispersed in liquids Grinding body separator in mills for comminuting and crushing deagglomerating solids, predispersed in liquids, which comprises circular rings provided with cross bores. The number of the bores decreases as a function of a decrease in diameter of the rings... | 03/08/1994 |
| 5182008 | Filtration assembly A filtration apparatus including a rotatable drum and a filter member defining at least a part of the side wall of the drum. A liquid containing solid particles, such as used wash water from a vehicle washing facility, is introduced into the drum by a sum... | 01/26/1993 |
| 5114080 | Grinding body separator in mills for triturating and breaking up solids predispersed in liquids Grinding body separator in mills for triturating and breaking up solids predispersed in liquids, which has a truncated cone-shaped stepped support, the major base of which has a flange for mounting in the mill and on the steps of which are fitted respecti... | 05/19/1992 |
| 5084991 | Pipeline padding apparatus and method A method and apparatus are disclosed for padding a pipeline lying in a ditch by separating fine particles from coarse particles in the material excavated from the ditch and windrowed along the side of the ditch comprising moving a frame supporting a rotat... | 02/04/1992 |
| 5009774 | Pulseless screen A screening apparatus comprises a pair of stationary concentric screens with a plurality of foils rotating therebetween and adjacent thereto, the individual foils being radially aligned. The screening apparatus comprises a tangentially disposed slurry inl... | 04/23/1991 |
| 4789068 | Wood chip classifying system A multi-stage apparatus and process for separating wood chips of a desired size range for pulp production, from an intermixture of materials e.g. from a log chipper. A disc screen screens out the chips and other materials having a size larger than the des... | 12/06/1988 |
| 4689143 | Drum separator A drum separator includes a cylindrical screen drum which is mounted for rotation within a sealed housing such that a small portion of the perimeter of the screen drum is exposed. Air, fibers, and fines are introduced onto a first part of the exposed port... | 08/25/1987 |
| 4353725 | Process and apparatus for recycling scrap glass A process and apparatus for recycling scrap glass is disclosed. Removing the binder and preheating the scrap are carried out in one operation. The resulting cleaned, preheated scrap then may be fed directly into a conventional glass melting furnace.... | 10/12/1982 |
| 4234992 | Cleaning apparatus Apparatus for cleaning objects, especially root crops such as sugar beet, comprises first and second members defining first and second surfaces respectively arranged for cleaning objects by relative movement between the surfaces and the objects to be clea... | 11/25/1980 |
| 4229286 | Apparatus and method for removing dust from tufts of opened cotton fiber Apparatus and method for removing dust and trash from tufts of opened cotton fiber stock includes entrance and exit ducts for airborne transport of the tufts to and from a housing having passages for the tufts therethrough, a screen disposed therein, a pa... | 10/21/1980 |
| 4207943 | Countercurrent solid-to-solid heat transfer apparatus and method Apparatus for transferring heat between solid particles includes a rotatable cylindrical drum which includes plates mounted on the interior surface of the drum wall to extend inwardly thereof. Also included is an elongate vibratory screen disposed within ... | 06/17/1980 |
| 4149637 | Apparatus for size-grading objects Apparatus for size-grading elongated objects of differing diameters, such as green beans or the like, comprises concentrically arranged inner and outer hollow rotatable slotted drums, with the outer drum having a greater number of axially extending circum... | 04/17/1979 |
| 4123213 | Automatic bakery product dusting flour recycling system For the purposes of saving flour and removing flour from the air for the safety of workers, large quantities of dusting flour used during the transfer of rolls from a standard dough dividing and rounding machine to a standard aging and panning machine is ... | 10/31/1978 |
| 4115271 | Rotary drum screen A structure for dewatering solids utilizing a rotating cylindrical screen wherein the solids and water are directed to a portion of the rotating screen with the water passing into the interior of the screen and the solids adhering to the external surface ... | 09/19/1978 |
| 4039434 | Sugar cane harvester cane conveyor roller A sugar cane harvester having walls defining a channel through which harvested sugar cane is to be conveyed. Power-rotated conveyor rollers extending across the channel move the cane through the channel. At least one of the rollers is in the form of a dru... | 08/02/1977 |
