Class 209/317 - With dischargers

Subclass of Class 209 - Classifying, separating, and assorting solids
Definition: Pluralities of flat reciprocating sifters one above another
No. of patents: 28
Last issue date: 02/05/2008

Number	Title	Issue Date
7325681	Luggage with compartment for takedown long arm A piece of luggage has a closable case having an interior, a partition subdividing the interior into a gun compartment adapted to hold a gun and another compartment adapted to hold personal items. The gun is secured in place in the gun compartment. The case is elong...	02/05/2008
7111739	Wet fine particle sizing and separating apparatus A particle sizing and separating apparatus is disclosed. The apparatus includes a base and a frame that is movably connected to the base. A motor assembly is provided to vibrate the frame and at least two screens are connected to the frame. Means also are provided f...	09/26/2006
6892887	Polymer drilling bead recovery system and related methods A polymer bead recovery apparatus is provided comprising: a housing comprising a recovery tank having an internal cavity and an exterior surface, the recovery tank having at least one inlet and at least one outlet, the recovery apparatus having a least one circulati...	05/17/2005
6840382	Integrally formed heavy media pulping column In a coal preparation plant which receives a raw coal feed and separates the raw coal feed into a clean coal feed and a refuse feed, an apparatus is provided for use therein. The apparatus mixes the sized raw coal feed particles with a slurry of media and water used...	01/11/2005
6820748	Vibratory screening machine with stacked and staggered screening units A vibratory screening machine including an outer frame, an inner frame resiliently mounted on the outer frame, a plurality of screening units mounted in stacked and staggered relationship on the inner frame, each of the screening units including a screen-supporting ...	11/23/2004
6715611	Vibratory separator A vibratory separator for separating components of material introduced to the vibratory separator, the vibratory separator in one particular aspect being a shale shaker, the vibratory separator including a basket for holding screening apparatus, the basket having tw...	04/06/2004
6446813	Sorting waste materials From one aspect the invention is a method of classifying waste materials comprising arranging two sieve screens, each having an inlet end and an outlet end, one above the other to define a space there between, arranging the upper screen, to be of coarser ...	09/10/2002
6431366	Vibratory screening machine with stacked and staggered screening units A vibratory screening machine including an outer frame, an inner frame resiliently mounted on the outer frame, a plurality of screening units mounted in stacked and staggered relationship on the inner frame, each of the screening units including a screen-...	08/13/2002
6412644	Vibratory separator A vibratory separator for separating components of material introduced to the vibratory separator, the vibratory separator including a basket for holding screening apparatus, the basket having two sides spaced-apart by a first end at which the material is...	07/02/2002
6155428	Vibratory screening machine A vibratory screening machine such as used for separating solid particulate material from drilling mud to allow the latter to be re-used, is described. The general form of the construction is similar to that of the VSM100 shaker machine as supplied by the...	12/05/2000
6079568	Dual deck dewatering screen A vibrating dual deck dewatering unit which includes a lower screen deck and an upper screen deck. Material being processed by the unit is discharged from the upper screen deck onto the lower screen deck in such a manner that excess water is allowed to ba...	06/27/2000
5769239	Grain scalping apparatus A gravity flow apparatus that scalps off the large pieces of foreign material from grain before processing or storage. The scalper consists of an upright housing with a grain inlet at the top. The grain enters the housing and drops onto a dead head slide....	06/23/1998
5337901	Process for screening granules An apparatus and process for screening a product grade of particulate matter from a feed-stream of particulate matter is provided. Specifically, the apparatus is a vibration screening action machine which vibrates, including motion having a component ther...	08/16/1994
5292006	Screening apparatus A screening plant having a feed plate located between a grizzly grate and a conveyor driven by a hydraulic motor. A first source of fluid supplies hydraulic fluid to a first cylinder to open the feed plate and to a second hydraulic cylinder to swing the g...	03/08/1994
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
5222605	Automatic particle size analyzer using stacked sieves The size ranges of particles separated on a stack of sieves of different mesh sizes is measured automatically. The stack is clamped together and shaken as a unit to separate the respective fractions, following which the sieves are sequentially separated f...	06/29/1993
5215197	Seafood separator device A seafood separator for separating sea creatures captured by a net is provided, comprising a support structure attached to the deck of a boat; a number of vertically arranged frames attached to the support structure, each frame containing a screen for ret...	06/01/1993
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
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
5059310	Analytical sieve apparatus A vertical set of sieves receives the particulate material from a vibrating trough conveyor above the set and is vibrated by an agitator on the machine frame. The sieves are spread apart and then tilted to dump the collected particles into respective funn...	10/22/1991
4927534	Screen system A screen system intended for the screening of wood chips, comprising one or several screening faces (2,3) placed one above the other as well as a bottom face (4) placed underneath said screening faces. The screening faces (2,3) are connected to members (1...	05/22/1990
4900430	Screen cleaning in CIL and CIP systems In carbon-in-pulp (CIP) and carbon-in-leach (CIL) processes, especially those utilizing pure oxygen instead of normal air to increase the overall efficiency of the cyanide leaching-adsorption process in the recovery of gold and/or silver from ores, the sc...	02/13/1990
4576713	Feed stream splitter for multiple deck screening machine A multiple deck screening machine wherein the feed material is divided into separate equal fractions on a rubble screen deck and scalp screen decks. Each deck includes downwardly slanting distribution panels having serrated lower edges. Particulate flow o...	03/18/1986
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
4543179	Rotary grain cleaner Rotary grain cleaning machines are well known. The present invention provides a grain cleaning machine comprising an aspirator unit and a screen unit. The screen unit has an inner frame assembly suspended from an outer frame assembly, inclined screen deck...	09/24/1985
4155840	Four group size vibratory screening apparatus An apparatus for sorting wood chips or other particulate material into groups according to size. The apparatus includes a housing having an opened top, a first screen attached to the housing substantially covering the opened top thereof, a second screen a...	05/22/1979
4154671	Method and apparatus for recycling undelivered cement This invention describes apparatus and method for recycling undelivered cement left as residue in cement trucks. Undelivered cement at the end of the working day is deposited on a shaker screen under action of high pressure water jets which trap large agg...	05/15/1979
4105544	Gravel processing system A gravel processing system, preferably of the portable type, utilizing a plurality of screens and conveyors wherein the particle sizes of the finished product may be accurately regulated, and readily varied. Two screen boxes are mounted upon a frame, each...	08/08/1978

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Class 209/317 - With dischargers