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| Number | Title | Issue Date |
| 7556154 | Drill fluid screening device In a method and apparatus for screening drilling fluids to remove entrained debris, the fluid is urged upwardly from the lower side to the upper side of an inclined or horizontal mesh screen, so that debris falls from the face of the screen under gravity to be colle... | 07/07/2009 |
| 7416084 | Apparatus for piercing garbage bags and collecting nonrigid, elongate objects and powder Provided is an apparatus comprising a screen assembly for sifting powder including a rear feeding device, a first conveyor adapted to convey garbage bags from the feeding device to the screen assembly, an inclined board extended downwardly from a front end of the sc... | 08/26/2008 |
| 7182206 | Screen energizer A screening system including a vibratory screen separator having a resiliently mounted frame with a low frequency vibratory drive coupled to that frame. A taut screen is rigidly mounted in the frame and a vibration transmitter assembly is resiliently mounted to the ... | 02/27/2007 |
| 7021469 | Apparatus for feeding particulate products to a user machine An apparatus (1) for feeding a user machine (3) with particulate products, such as products for infusion like tea, chamomile and herbal teas in general, comprises a hopper (2) for dispensing the product and means (40; 7) for transferring ... | 04/04/2006 |
| RE38765 | Combination screen/conveyor device removably attachable to a vehicle In combination a screen, a shaker, a conveyor and carbody device which is attachable to a vehicle of choice, such as an hydraulic excavator, a backhoe, etc., and when installed thereon allows the vehicle to perform as a padding machine. ... | 08/02/2005 |
| 6907995 | Chip screening method and plant A chip screening method and plant wherein the pin chips (9) are separated from the rest of the chips and dosed among chips that are to be led to a subsequent process (7) so that the share of the pin chips (9) relative to the total amount of chip... | 06/21/2005 |
| 6877610 | Screen assembly A screen assembly 22 includes a conveyor 26 pivotably mounted beneath a screen 24 for segregation of fractions of material, for example from a mobile crusher 10. Hydraulic cylinders (not shown) are used to selectively move telescopic arms... | 04/12/2005 |
| 6405874 | Mobile material handling apparatus with lowerable track set A mobile material handling apparatus (10) having a frame (11), an input arrangement (13) for receiving a bulk supply of raw material to be handled, a screen box (16) or other material processing device, a conveyor (17) to transfer the material from the in... | 06/18/2002 |
| 6357596 | Sperm strainer system The invention in the simplest form is a passive method and apparatus for filtering motile sperm from a sperm sample. The invention passively filters the motile sperm using a membrane assembly disposed in a container. In operation, a sperm sample is placed... | 03/19/2002 |
| 6336558 | Tractor unit and wheeled trailer combination A combination of a tractor unit (10) and a wheeled trailer combination, preferably a mobile screening plant (100), in which the tractor unit (10) has endless tracks (11) to render the combination highly maneuverable, and carries an upwardly and downwardly... | 01/08/2002 |
| 5957302 | Mobile screening apparatus A self-propelled screening apparatus (10) having a support frame (11), endless crawler tracks (15) supporting the frame (11), a hopper (13) and screen or screens (12) mounted on the support frame (11), and a discharge conveyor (14) mounted on the frame (1... | 09/28/1999 |
| 5741087 | Chain separator for padding machine A padding apparatus for padding underground cable or pipeline is provided. The padding apparatus is adapted to continuously separate excavated material piled alongside an excavated ditch into relatively fine padding material and relatively rough residual ... | 04/21/1998 |
| 5479726 | Compact padding machine A padding machine attachment for a vehicle is provided. When padding of a ditch for a pipeline or cable is required, the padding machine is removably attached in a position at one end of a conventional bucket loader, bulldozer, or other base machine or ve... | 01/02/1996 |
| 5346071 | Trommel screening apparatus The present invention is a vehicle-mounted trommel screening apparatus. A rotating trommel screen cage having an open front and a closed back is mounted on the vehicle so that the open front of the trommel screen cage is at a side of the vehicle and is ad... | 09/13/1994 |
| 5337900 | Floor recovery hopper and system therewith A media recovery hopper which lies on a floor permitting spent media and debris to be swept thereinto. The hopper, in the preferred embodiment, is a substantially rectangular box having one of its four side walls shorter than the rest. The media/debris is... | 08/16/1994 |
| 5285905 | Screening assembly for soil The screening assembly includes a tilted upwardly movable belt conveyor over which is mounted a rotatable cylindrical drum axially oriented in the direction of the belt conveyor. A mixed soil receiving bucket mounted over the conveyor upstream of the cyli... | 02/15/1994 |
| 5271168 | Pipeline padding machine A padding machine used for overlaying a pipeline disposed within a trench with sifted dirt to eliminate contact by rock or other abrasive material with the pipeline and, thereby, preclude rusting, corrosion or like damage. A trench typically lies along th... | 12/21/1993 |
| 5261171 | Pipeline padding machine attachment for a vehicle A padding machine attachment for a vehicle is provided. When padding of a ditch for a pipeline or cable is required, the padding machine is removably attached in a position at one end of a conventional bucket loader, bulldozer, or other base machine or ve... | 11/16/1993 |
| 5234564 | Mobile screen assembly for rubble and debris A vehicle for feeding and screening material including a wheel-supported vehicle frame and a material-transport conveyor extending from one end of the vehicle frame to a raised end located between the ends of the vehicle frame. A multiple deck screen asse... | 08/10/1993 |
| 5195260 | Pipeline padding apparatus An improved pipeline padding apparatus includes a separator for separating fine material out of spoil which is piled along side an excavation, an elevator for transporting spoil to the separator, and a pair of guide projections for guiding spoil into the ... | 03/23/1993 |
| 5183160 | High volume padding machine A pipeline padding machine for use with a motorized carrier is mounted on a flat bed trailer adapted to be hitched to the carrier. Collector apparatus mounted beneath the screening apparatus receives the earth from a discharge at the bottom of the screeni... | 02/02/1993 |
| 5152400 | Snap action particle separating apparatus Particle separating apparatus includes a horizontally disposed rectangular screen or grid having openings adapted to pass smaller particles from a stream of particles of varying sizes while retaining larger particles upon the top of the screen. A conveyin... | 10/06/1992 |
| 5108588 | Structure of vibro separator A vibro separator, comprising a separator unit which is comprised of a screen assembly releasably mounted on a hopper at the top, which screen assembly has a screen releasably fastened therein; a vibrator unit which is comprised of a motor directly or ind... | 04/28/1992 |
| 5106490 | Mobile material screening apparatus A mobile material screening apparatus includes a sloped screen box, a housing, a fifth wheel coupling, an engine and a pair of wheels fixed to the housing. Two hydraulic rams lift the apparatus and wheels off the ground and four extendable legs support it... | 04/21/1992 |
| 5097610 | Compact padding machine A compact padding machine for screening and conveying soil into a trench. The machine is usable as an attachment to a conventional bucket loader, bulldozer or other base machine. The padding machine includes a screening belt, an underlying inclined convey... | 03/24/1992 |
| 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 |
| 5009370 | Municipal solid waste material sorting trommel system A municipal solid waste material sorting system comprises a multi-stage trommel having a relatively short first stage section with relatively small holes for screening out grit, dirt, coins, small stones and the like, a second substantially longer second ... | 04/23/1991 |
| 4991721 | Automation of an air-screen seed cleaner A cleaning system is provided for separating desired material from undesirable material in a mixture of particulate materials. The system includes an inlet for receiving the mixture of materials and an outlet for discharging the desired materials. At leas... | 02/12/1991 |
| 4983280 | Screening apparatus Screening apparatus comprises a feeder conveyor, an elevator, a screen box, an end boom elevator and two lateral boom elevators all carried on a wheeled trailer. The elevator has an elongated support with an endless belt arranged around two rollers longit... | 01/08/1991 |
| 4952309 | Auger-type flour sifter A flour sifter for separating doughballs from fine particulate matter in a breading mixture, comprises a hopper for receiving the breading mixture. The lower portion of the hopper includes a sifting screen along most of the longitudinal length that is siz... | 08/28/1990 |
| 4943260 | Weed seed harvester A mobile collector or harvester for weed seeds that are normally discharged onto the ground during a combining operation, is connected to trail a conventional grain combine, and collects the straw and the tailings discharged from the separating sieve that... | 07/24/1990 |
| 4940001 | Rail spike cleaning apparatus A rail spike cleaning apparatus includes a tumbler and an arrangement whereby the tumbler is automatically loaded and unloaded. The tumbler is a continuous tumbler in that it is operable to receive spikes continuously while it is tumbling and operable to ... | 07/10/1990 |
| 4927528 | Sieve device for sieving out compost from rotten organic material The sieve device comprises a filling funnel for feeding the material. A conveyor belt runs on the bottom of the filling funnel. The conveyor belt projects into a sieve drum, which is driven by a hydraulic motor. The material is transported through the sie... | 05/22/1990 |
| 4861461 | Pipeline padding machine and method A pipeline padding vehicle for supplying earth of a fine consistency to cover and pad a pipeline disposed in a trench has a longitudinal conveyor, a vibrating screen to receive earth from the conveyor, and a padding material discharge conveyor beneath the... | 08/29/1989 |
| 4750997 | Grain cleaner and spreader A portable, collapsible grain cleaner and spreader apparatus is used to evenly spread and clean grain or similar crops as the grain is introduced into a storage structure. The grain cleaner and spreader apparatus comprises a vertically disposed grain rece... | 06/14/1988 |
| 4563268 | Method of discharging particles from a vibrating filter screen Liquid dispersions may be filtered, with a minimum of stopage, to remove coagulum with a pan assembly for a circular vibratory separator comprising a hollow cylindrical frame, having therein a discharge vertically spaced from the bottom of the frame, and ... | 01/07/1986 |
| 4551242 | Apparatus for dynamic classification of suspensions of solid bodies in liquids Apparatus for a dynamic classification of suspensions of solid bodies in liquids consisting of a cylindrical body with a conical bottom terminated with an outlet stub pipe, provided with a tangentially situated inlet stub pipe and a co-axially situated ro... | 11/05/1985 |
| 4493767 | Conveyor belt for transporting slag material from a filtering apparatus A conveyor belt assembly is presented for use in conjunction with a rotary drum filtration apparatus, the conveyor belt passing longitudinally through the drum. The conveyor belt assembly comprises two movable frame sections and an associated conveyor bel... | 01/15/1985 |
| 4468325 | Apparatus for effecting clarification of liquid provided with filter cleaning means Apparatus for effecting clarification of liquid having particulate material entrained therewithin includes a filter screen and a filter-cleaning device disposed adjacent thereto operable for removing particulate material from the filter screen which has b... | 08/28/1984 |
| 4457840 | Apparatus for delivering a stream of green pellets An apparatus for delivering a stream of green pellets has a wide belt conveyor and a vibrating conveyor having a deck for supporting the green pellets and conveying the green pellets to the wide belt conveyor in a direction of conveyance over a discharge ... | 07/03/1984 |
