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| Number | Title | Issue Date |
| 8113358 | Pre-tensioned sifter screen A screen for a gyratory sifter including a frame having a plurality of cross-members and a rigid external extension. Additionally, the screen including a filtering element securably attached to the frame. Also, a method for installing a pre-tensioned screen in a gyr... | 02/14/2012 |
| 7861867 | Material screening systems A reconfigurable grizzly-type system providing improved field processing of ore, rock, and soil. The system provides reconfigurable screening of rocks, rubble, gravel, and debris from soil based on material size. The system also provides improvements related to effi... | 01/04/2011 |
| 7604127 | Screening arrangement A screening panel 10 comprises a peripheral frame 12 consisting of a pair of mutually laterally spaced side members 14, 16, which are integral with a pair of mutually axially spaced end members 18, 20. The side members 14, 16 and e... | 10/20/2009 |
| 7520391 | Screen assembly for vibratory separator A mount for a screen assembly, a screen assembly with such a mount, and a vibratory separator (e.g., a shale shaker) with such a screen assembly; the mount in certain aspects including a body with an inwardly projecting handle apparatus accessible when the screen as... | 04/21/2009 |
| 7331469 | Vibratory separator with automatically adjustable beach A vibratory separator having a basket for supporting screen apparatus for treating material, the basket pivotably mounted on a base, vibratory apparatus connected to the basket for vibrating the basket, the material forming a pool on the screen apparatus, and a beac... | 02/19/2008 |
| 7303079 | Screening element The invention provides a screen which has a screen body (12) and a plurality of ribs which extend across the screen body. Screening apertures (118) are defined in the screen body by the ribs. A reinforcing frame (124) is embedded in the screen b... | 12/04/2007 |
| 7240801 | Screening arrangement A screening panel 10 comprises a peripheral frame 12 consisting of a pair of mutually laterally spaced side members 14, 16, which are integral with a pair of mutually axially spaced end members 18, 20. The side members 14, 16 and e... | 07/10/2007 |
| 7210582 | Screen and screen frame for improved screen to shaker placement, handling and retention A frame for a screen utilized in a shaker separator, the frame including: a first (2) and a second (4) longitudinal support member (2) spaced apart from and substantially parallel to the each other; one or more inner longitudinal support member ... | 05/01/2007 |
| 7175027 | Shaker screen and clamping system A screen assembly, holding apparatus for it, and a vibratory separator with it, the vibratory separator, in one aspect, for separating components of material introduced thereto, the vibratory separator including a basket, a collection receptacle beneath the basket, ... | 02/13/2007 |
| 7175028 | Vibratory screen assemblies A screen assembly which includes a frame, a plurality of openings in the frame, a screen overlying the openings, a plurality of spaced tapered ribs on the opposite side of the frame from the screen, a first end on the frame with a lip, and a second end on the frame ... | 02/13/2007 |
| 7011218 | Vibratory screen assemblies A screen assembly which includes a frame, a plurality of openings in the frame, a screen overlying the openings, a plurality of spaced tapered ribs on the opposite side of the frame from the screen, a first end on the frame with a depending lip, and a second end on ... | 03/14/2006 |
| 6957741 | Screening arrangement A screening panel 10 comprises a peripheral frame 12 consisting of a pair of mutually laterally spaced side members 14, 16, which are integral with a pair of mutually axially spaced end members 18, 20. The side members 14, 16 and e... | 10/25/2005 |
| 6955262 | Removable seal apparatus for vibratory separator A support apparatus for supporting at least one screen assembly of a vibratory separator, the vibratory separator having seal apparatus for sealing an interface between a portion of the at least one screen assembly and an interior surface of the support apparatus, t... | 10/18/2005 |
| 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 |
| 6863182 | Method and apparatus for separating excavated material A method and apparatus for separating material, particularly excavated material is presented. The method and apparatus utilize a releasable and interchangeable screen assembly which is positioned on top of a frame having a slanted grate. The screen assembly includes... | 03/08/2005 |
| 6763949 | Waste recovery station for beach cleaner A waste recovery station for a beach cleaner for recovering waste raked up by a beach cleaner. A waste recovery station for a beach cleaner includes a pair of station members arranged in parallel with each other through a required spacing. Each station member is pro... | 07/20/2004 |
| 6726029 | Separator screen with solids conveying end area A screen assembly for a vibratory separator having, in one aspect, a frame with a plurality of openings therethrough, screening material on the frame over the openings, the frame having an end area at a material exit end of the frame, and end apparatus at the end ar... | 04/27/2004 |
| 6601709 | Screen support and screens for shale shakers A support for a screen assembly for a vibratory separator, a screen assembly with such a support, a vibratory separator with one or more such screen assemblies, and a method of using such a screen assembly, such a support having a body, a first series of ... | 08/05/2003 |
| 6530483 | Unibody structure for screen assembly A unibody structure for a screen assembly for a vibratory separator, and screens with such a structure, the unibody structure having, in certain aspects, an integral body member with a portion having a plurality of spaced-apart openings therethrough, the ... | 03/11/2003 |
| 6513665 | Screen mounting system A screen system employs a resiliently mounted housing, a vibration generator mounted to the housing, a mounting frame fixed to the resiliently mounted housing and a support surface. This system receives a screen including a screen frame and pre-tensioned ... | 02/04/2003 |
| 6439392 | Vibrating screen assembly with tubular frame A vibrating screen assembly having a tubular frame. The tubular frame includes a pair of opposed tubular sides and a pair of opposed tubular ends. An upstanding lip extending from each side and extending from each end forms a rim enclosure. A ledge extend... | 08/27/2002 |
| 6371302 | Vibratory separator screens A screen assembly which, in at least certain aspects, has at least one wire mesh screen formed with undulating mesh material having a series of ridges spaced apart by a series of valleys, a corrugated perforated plate with an undulating shape correspondin... | 04/16/2002 |
| 6302276 | Screen support strip for use in vibratory screening apparatus A support strip has been invented for supporting part of a screen used in a vibratory shaker, the support strip having a support body having spaced-apart ends spaced-apart sides, and a top surface, and at least one hump, raised portion or upturned finger ... | 10/16/2001 |
| 6202857 | Frame for flat sifter and process for producing the same The invention relates to a sieve frame for plan sifters and also to a method of producing it. It is used mainly in plan sifters for milling. The object is to improve the functionality of an insertable sieve frame and to simplify production. This object is... | 03/20/2001 |
| 6059119 | Rock screed bucket The present new, improved rock screed bucket has a solid rectangular back plate together with a framework having a rectangular bottom and a pair of generally triangular shaped sides. The solid rectangular back plate acts as a backstop. The rectangular bot... | 05/09/2000 |
| 6053329 | Vibratory frame mounting structure for screening machines A mounting structure for a screen frame and/or a top cover to a vibratory frame of a screening machine requires only an initial one time adjustment and includes a pair of elastomeric restraints each including a compressible bumpers on a head-end of the sc... | 04/25/2000 |
| 6032806 | Screen apparatus for vibratory separator A screen is disclosed which, in certain aspects, has screening material between opposed frame sides and one or more lower strips beneath the screen. In one aspect these strips are only inteconnected via their ends and not along their lengths. In certain a... | 03/07/2000 |
| 6021905 | Screen cylinder with reinforcing rings and method of manufacture thereof A screen cylinder, screen, method of manufacture of the screen cylinder, and method of use of the screen cylinder, allow screen capacity to be maximized without sacrificing screen cylinder strength, and while achieving a clean accepts flow. A screen cylin... | 02/08/2000 |
| 6019228 | Vibrating screen deck support framework system A modular deck support framework system employing support tray framework sections for vibrating screens having an essentially rectangular outlined perimeter framework. Each support tray perimeter framework has at least: two opposed side framework members ... | 02/01/2000 |
| 6006923 | Screening apparatus This improved screening apparatus for sorting various size aggregates utilizes a screen made of polyurethane having two sets of perpendicular evenly spaced parallel webs each of which enclose a wire provided for reinforcement. If desired, the reinforcing ... | 12/28/1999 |
| 5971160 | Fibresaver screen basket support A support structure for thin screenplates utilized for fine screens in Fibresaving applications for pulp fiber suspensions or the like wherein a support structure having a screen support in minimum screen contact positioned by a support reinforcement and ... | 10/26/1999 |
| 5950841 | Screen assembly for a vibratory separator A vibratory screen system including a screen assembly having screen cloth on both the top and the bottom of the frame. The screen cloth on the bottom has openings larger than and up to five times the size of the openings on the upper screen cloth. A patte... | 09/14/1999 |
| 5927511 | Flat screen panel for crowned deck vibrating shaker A screen assembly for a vibrating shaker having a crowned deck for receiving at least one screen assembly thereon and a plurality of attachment members. The screen assembly includes a rigid frame having a pair of parallel, opposed sides and a pair of para... | 07/27/1999 |
| 5769240 | Screening systems and methods for screening particulate material A screening system, preferably a finger screening system, for screening particulate material is provided. The subject screen system includes (a) a screening assembly including horizontally-extending support members located within the confines of the assem... | 06/23/1998 |
| 5755334 | Method and apparatus for mounting a panel on a support member A method and apparatus for mounting a panel on a rail member having first and second resilient legs separated by a channel. A groove disposed along a first side of the panel receives a portion of one of the resilient legs of the rail member. The groove ex... | 05/26/1998 |
| 5697503 | Screening sieves, notably for paper pulp Sieve with slots or holes, made from a U-shaped section, constituted by a stack of identical circles, each circle (1, 1') being made from a tapered U-shaped section of which the two ends are welded or mechanically connected to one another, characterized i... | 12/16/1997 |
| 5664686 | Sifter frame for powder particle sifter A sifter frame is composed of a pair of frame elements including an outer frame and an inner frame, and the outer frame is formed from a frame member having the same height and includes a pair of fine powder dropping ports, a rough powder dropping port an... | 09/09/1997 |
| 5655666 | Sieve A sieve has a fine wire mesh retained by a ring and two annular casings detachably linked to each other by clamping elements for clamping the wire mesh. The edge of the flat wire mesh is firmly secured to a wire ring. The first annular casing ends in a ro... | 08/12/1997 |
| 5624038 | Curved free standing garden sieve A free standing curved garden sieve of parabolic shape to separate stones and coarse matter from garden soil as the garden soil travels from upper substantially vertical portions to lower substantially horizontal portions.... | 04/29/1997 |
| 5615776 | Mounting & tensioning arrangements for screens In a vibratory screening apparatus, a withdrawable lower fine mesh screen assembly (17) has a screen unit (19) releasably mounted on a grid/frame structure (20). The screen unit (19) has a sheet (21) of mesh material bonded to a grate or lattice (22) of a... | 04/01/1997 |
