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| Number | Title | Issue Date |
| 8113357 | Screening module A screening module 10 comprises a frame component 12 to be secured to an underlying screen deck, in use. A screening panel 14 is carried by the frame component 12. The screening panel 14 comprises an operatively upper screening sur... | 02/14/2012 |
| 8047380 | Screen panels The invention concerns screen panels of the kind used in vibratory screening operations. According to the invention, the screen panels (10) include recycled polyurethane, typically that recovered from worn screen panels. In one particular embodiment in which ... | 11/01/2011 |
| 7987991 | Pulper with screen plate having maximum defibering edges A screening machine for a fiber suspension includes a vessel; a rotor disposed within the vessel; and a screen plate positioned in stationary opposition to the rotor. The screen plate includes a plurality of substantially parallel first grooves extending in a first ... | 08/02/2011 |
| 7905358 | Apparatus and methods for filtering granular solid material Apparatuses for screening granular solid particulate material include a generally planar first screen and a second screen. A plurality of apertures extends through the first screen. At least a portion of the second screen is oriented at an angle to the first screen,... | 03/15/2011 |
| 7316321 | Sifting screen A screen for use in a vibratory machine for separating particulate material from liquid material comprising a rigid rectangular support frame having flanges along all four edges to which screen cloths of the type described are bonded with the longer dimension of the... | 01/08/2008 |
| 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 |
| 7264125 | Undulating molded plastic vibratory screen An undulating molded plastic vibratory screen including a base, a plurality of spaced substantially parallel undulations on the base, screen configurations on the undulations, and supporting rib structure within the undulations. ... | 09/04/2007 |
| 7228971 | Vibratory screening machine and vibratory screen and screen tensioning structure A vibratory screening machine having opposite sides with a plurality of stationary aligned tensioning members mounted on one side and a plurality of nut actuated movable tensioning members mounted on the opposite side and a vibratory screening screen mounted on the ... | 06/12/2007 |
| 7216768 | Screen system The present invention provides a screen system (8) suitable for use in a vibratory screen apparatus (1), and comprising: a screen element (11) and a support frame (12) therefor, as well novel screen elements (11) and mesh panels ( | 05/15/2007 |
| 7216767 | Screen basket and shale shakers A screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, the basket including two opposed spaced-apart side walls having first e... | 05/15/2007 |
| 7198156 | Dam basket for vibratory separators A vibratory separator and a screen mounting basket for a vibratory separator for separating components of material introduced into the basket, the vibratory separator including a collection receptacle beneath the basket, at least one screen assembly mounted in the b... | 04/03/2007 |
| 7191564 | Self cleaning shield An elongated strip of extruded plastic or roll formed metal material includes a rear securing fifth plane that inserts beneath a roofing membrane of a building structure. The rear plane integrally connects to a forward extending perforated fourth plane by means of a... | 03/20/2007 |
| 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 |
| 7017754 | Method and apparatus for classifying fine balls and method for producing cylindrical sieve An apparatus for classifying fine balls having diameters of 1 mm or less into those having predetermined diameter ranges, comprising a feeder for supplying fine balls, at least one rotatable cylindrical sieve constituted by a plate with a thickness of 200 μm or les... | 03/28/2006 |
| 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 |
| 7000777 | Vibratory separator screens Screen assemblies for a vibratory separator, the screen assemblies in certain aspects having at least two screening members, the at least two screening members connected by sewing material, and methods for making such screen assemblies. ... | 02/21/2006 |
| 6932883 | Screens for vibratory separators A method for making a screen assembly for a vibratory separator, the method including, in at least certain aspects, gluing together with glue at least two layers of fine screening material, allowing the glue to set, preheating the glued together at least two layers ... | 08/23/2005 |
| 6905032 | Screens for fibrous paper suspensions and process for making same Process for manufacturing screens and screens suitable for use in wet screening fibrous paper suspensions, in which the screens include at least one screen plate having a number of sorting apertures. The process includes providing a number of fastening openings in t... | 06/14/2005 |
| 6825136 | Filtering screens for vibratory separation equipment A filtering screen comprises a fine woven wirecloth filtering mesh (4) disposed above a coarse woven wirecloth support mesh (2). An intermediate woven wirecloth mesh (3) is disposed between the fine woven mesh (4) and the coarse woven mes... | 11/30/2004 |
| 6736271 | Screen apparatus and method A panel for screening material, comprising: a frame defining a screening area; a tensioned fiber reinforcement attached to the frame and spanning across the screening area; and a non-tensioned resilient coating surrounding the fiber reinforcement so as to form a plu... | 05/18/2004 |
| 6685028 | Screening equipment A screening panel assembly (10) includes a frame (12) on which a screening panel (14) is supported. The frame (12) has frame members and intermediate members with the panel (14) being secured only to the frame members of the frame (12).... | 02/03/2004 |
| 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 |
| 6564947 | Method of screening material utilizing a plurality of undulating screen assemblies A screening screen assembly for a vibratory screening machine including an apertured plate, and a subassembly of an undulating support screen and fine screening screen and finer screening screen bonded to each other by a fused plastic grid and bonded to t... | 05/20/2003 |
| 6550620 | Pulp screening device The present invention is a pulp screening device which is capable of screening a large quantity of pulp with low power, by preventing clogging of a screen cylinder. The device is provided with one or a plurality of vanes which revolve within an agitation ... | 04/22/2003 |
| 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 |
| 6524454 | Integrated membrane and electrode support screen and protector ring for an electrochemical cell The present invention is an integrated screen comprising a screen portion having openings and an integral protector edge disposed about the periphery of the screen portion. This integrated screen protector edge can be utilized individually as the membrane... | 02/25/2003 |
| 6484885 | Solids raised screens A new and unique design use of directional and re-directional raised ribs on a solids control filtering screen, such as those used in drilling wells for hydrocarbons and other substances, in conjunction with a coordinated system of hanging such screens an... | 11/26/2002 |
| 6401934 | Ramped screen & vibratory separator system A screen assembly has been invented which has a base, at least one layer of screening material on the base, and at least one ramp formed in the at least one layer of screening material.... | 06/11/2002 |
| 6382424 | Portable screening device and method A truck mounted particle screener for mounting atop the dump body of a dump truck having a support frame, a screen deck, a plurality of spring assemblies connecting the screen deck to the support frame, and a vibrating mechanism attached to the screen dec... | 05/07/2002 |
| 6344112 | Screen having inclined slots for a digester A screen used in the production of cellulose pulp may be mounted in a digester to minimize traditional screen problems (including clogging) without introducing new problems. The screen comprises a screen plate having a plurality of slots formed in it with... | 02/05/2002 |
| 6340089 | Method of fabricating undulating screen for vibratory screening machine A screening screen assembly for a vibratory screening machine including an apertured plate, and a subassembly of an undulating support screen and fine screening screen and finer screening screen bonded to each other by a fused plastic grid and bonded to t... | 01/22/2002 |
| 6283302 | Unibody screen structure 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 plurality of spaced-apart openings therethrough for sealingly abutting... | 09/04/2001 |
| 6254729 | Pulper with extraction plate assembly having removable inserts and method of manufacturing same A pulper for pulping a fiber suspension includes a vessel, an extraction plate assembly and a rotor. The extraction plate assembly is disposed within the vessel and includes a metal plate with a plurality of holes extending therethrough. A plurality of me... | 07/03/2001 |
| 6241098 | Drilling fluid treatment operations and apparatuses An assembly has been invented for a vibratory shaker for screening material flowing thereto, which according to certain aspects of the present invention has a panel with a plurality of spaced-apart holes therethrough, a plurality of strips spaced-apart th... | 06/05/2001 |
| 6216877 | Screen panel and method of its manufacture Screen panels are disclosed for the screening of fibrous material. The screen panels are one-piece screen panels which can then be incorporated into a cylindrical screen jacket without the use of welding. The screen panels include a plurality of apertures... | 04/17/2001 |
| 6209726 | Screen assembly for vibratory screening machine A screen assembly for a conventional vibratory screening machine includes an upper fine mesh screen which passes particles below a predetermined size and rejects particles above this size. A second or blinding screen, below the first screen, acts to dislo... | 04/03/2001 |
| 6202856 | Vibratory screening system and screen therefor A screen having a frame, three screen cloth layers and a laminating solidified layer with perforations therethrough. The screening layer of the screen cloth is typically of the finest mesh with increasing coarseness to the support mesh. The solidified lay... | 03/20/2001 |
| 6129216 | Particle separation device and processes thereof An article including; a support member with a plurality of apertures therethrough; and a plurality of gate members attached by at least one end to at least one side of the support member, wherein each gate member is situated in close proximity to at least... | 10/10/2000 |
| 6119867 | Screen cylinder The present invention relates to a screen cylinder for screening fiber suspensions of the wood processing industry. The screen cylinder comprises a rotationally symmetric screen surface located on the side of the pulp to be screened, and support rings sup... | 09/19/2000 |
| 6062394 | Modular wood particle screen A modular screening apparatus has four parallel shafts arranged in a single plane mounted to each module. The shafts extend between the sides of the machine frame and are driven by a motor and timing belts which connect the shafts directly or indirectly t... | 05/16/2000 |
