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| Number | Title | Issue Date |
| 8113356 | Systems and methods for the recovery of lost circulation and similar material Methods and systems are disclosed employing a quad-tier shale shaker for processing a mixture of drilling fluid and solids which solids include, in one aspect, lost circulation material (and/or material of size similar to the size of the lost circulation material). ... | 02/14/2012 |
| 8074805 | Extra-large vibrating screen with duplex statically indeterminate mesh beam An extra-large vibrating screen with duplex statically indeterminate mesh beam excitation body and plate type combined bearing beam comprises plate type flat and rigid statically indeterminate combined bearing beam (12) arranged in a screen box (1), a ... | 12/13/2011 |
| 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 |
| 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 |
| 7278540 | Adjustable basket vibratory separator A vibratory separator having a base, a basket movably mounted on the base and for supporting screen apparatus for treating material introduced into the vibratory separator, the basket on a base and pivotable with respect thereto, vibratory apparatus connected to the... | 10/09/2007 |
| 7182207 | System and process for break detection in porous elements for screening or filtering A detector for breaks in screens and filters employed in material separators includes a transmitter of RF signals and a receiver of RF signals located to either side of a screen. The separator includes a chamber having a barrier to RF signals with a path through the... | 02/27/2007 |
| 7147109 | Sieve device for screening solid material The present invention relates to a sieve device for screening at least two solid substances preferably different from each other comprising at least one sieve module (1), comprising at least two sieve devices (2), comprising at least one fitting (3 | 12/12/2006 |
| 7122119 | Sieve separator A sieve separator and a method of slurry separation that uses two or more levels of filtration screens. In some embodiments, the filtration screens on different levels may be used to separate solids of various sizes at each level. ... | 10/17/2006 |
| 7114620 | Multi-deck screening machine A screening machine comprises a screen frame elastically supported on a fixed base and comprising screen cheeks and screen frame crossbeams which connect the screen cheeks, a drive for oscillating the screen frame, and a swing frame elastically coupled to the screen... | 10/03/2006 |
| 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 |
| 7040488 | Screens and seals for vibratory separators A vibratory separator having a basket for supporting screen assembly apparatus, the basket having an interior surface, vibrator apparatus connected to the basket to vibrate it and the screen assembly apparatus releasably secured thereto, seal apparatus connected to ... | 05/09/2006 |
| 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 |
| 6997325 | System and process for break detection in porous elements for screening or filtering A detector for breaks in screens and filters employed in material separators includes a transmitter of RF signals and a receiver of RF signals located to either side of a screen. The separator includes a chamber having a barrier to RF signals with a path through the... | 02/14/2006 |
| 6988624 | Vibrating screen with a loading pan The vibrating screen has a frame, a screen box, two pairs of springs supporting the screen box over the frame and a driven eccentric shaft mounted under the screen box. The vibrating screen is characterized by a loading pan affixed to the upper end of the screen box... | 01/24/2006 |
| 6953097 | Drilling systems Systems and methods for providing a mixture of drilling fluid and beads into a flow of drilling fluid, e.g., flowing in a conduit or flowing upwardly within an annulus of a riser, the method in certain aspects including: introducing an initial stream including a mix... | 10/11/2005 |
| 6938779 | Screen assembly for a shale shaker A screen assembly for a shale shaker comprising a panel and a support structure, the panel having an area provided with a multiplicity of apertures and at least one layer of screening material arranged over the multiplicity of apertures, wherein said panel is remova... | 09/06/2005 |
| 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 |
| 6918492 | Baffle assembly for a sealed shaft on a vibratory apparatus A sealed wheel case for use on a vibrating aggregate processing device comprises a housing sized to hold a rotatable wheel supported on a shaft, the housing having a base, a peripheral sidewall, and a cover. The cover includes an aperture adapted to receive therethr... | 07/19/2005 |
| 6910587 | Gumbo separator methods and apparatuses A separator system for separating first material from second material, in one aspect for separating gumbo from drilling fluid, a combination of the first material and second material introducible to the separator system, the separator system having a screen conveyor... | 06/28/2005 |
| 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 |
| 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 |
| 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 |
| 6575304 | Vibrating screen apparatus A vibrating screen apparatus for sizing materials is shown that has a minimum of moving parts therein. A vibrating motor is mounted below longitudinal vibrating bars. The vibrating bars are set on air mounts, which air mounts are between the vibrating bar... | 06/10/2003 |
| 6565698 | Method for making vibratory separator screens A method for making a screen assembly for a vibratory separator, which, in certain aspects, includes placing a first layer of screening material below a glue application apparatus, and applying with the glue apparatus an amount of glue in a pattern to a p... | 05/20/2003 |
| 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 |
| 6530482 | Tandem shale shaker A tandem shale shaker having at least a base, at least one upper shaker screen, at least one lower shaker screen, a basket, an apparatus for vibrating the basket, at least one distribution conduit, a flowback pan, a flow director, and a distribution appar... | 03/11/2003 |
| 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 |
| 6439391 | Vibratory separator with material heater A vibratory separator apparatus for separating components from a fluid material stream fed to the vibratory separator apparatus, the vibratory separator apparatus, in certain aspects, having separator apparatus for separating components of the fluid mater... | 08/27/2002 |
| 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 |
| 6329436 | Process to recycle shredder residue A system and process for recycling shredder residue, in which separating any polyurethane foam materials are first separated. Then separate a fines fraction of less than about 1/4 inch leaving a plastics-rich fraction. Thereafter, the plastics rich fracti... | 12/11/2001 |
| 6267310 | Process for separating particles of cohesive material according to size A process for separating particles of a cohesive form of a polydisperse compound or composition comprising nevirapine, nevirapine hemihydrate, mexiletine or mexiletine hydrochloride according to size is disclosed which comprises milling and sizing the par... | 07/31/2001 |
| 6260710 | Flat sifter A flat sifter with self-supporting structure which is preferably used for sifting grain and flour-like products in mills. The aim is to markedly simplify the construction and assembly of such a flat sifter while improving the sanitary conditions. That aim... | 07/17/2001 |
| 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 |
| 6199703 | Vegetable harvester The pepper harvester has a harvesting head, a primary conveyor, a shredder, cleaning and separating assemblies, a pepper sizer, a sorting bed and a discharge conveyor. The shredder is mounted above the primary elevator. First and second side plates of the... | 03/13/2001 |
| 6170667 | Apparatus and method for preparation of liquid/solid slurries An apparatus and method are disclosed for the continuous formation of slurry. The apparatus includes a hopper to receive particulate material; one or more transport/mixing assemblies that mix and transport the solid material and a carrier liquid; and a mi... | 01/09/2001 |
| 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 |
| 6125558 | High volume pipe padding machine A padding machine (10, 100) is disclosed which is capable of separating materials in a spoils bank beside a trench into coarser materials, which are redeposited in the spoils bank behind the machine, and finer materials which are conveyed to the trench fo... | 10/03/2000 |
| 6036126 | Apparatus for separating particles of cohesive material according to size and process Milling/sizing apparatus which includes individual and/or nested sieves each of which may also include a quantity of beads, disks and/or other geometric or non-geometric shapes. The sieves can be rotated, vibrated or agitated in any and all combinations b... | 03/14/2000 |
| 6015049 | Up-flow fish grader apparatus and method An apparatus for the grading of fish into various size categories, utilizing a series of panels with progressively smaller spaces between grading bars on the panels. The panels are attached to a panel box that may be raised or lowered within a holding vat... | 01/18/2000 |
| 5950840 | Bar screen system with attached screens A bar screen is combined with a wire or punch screen which is suspended beneath the screen deck from a pair of oscillating bar support beams so that a single bar screen, screen combination, may not only size materials for thickness but remove small partic... | 09/14/1999 |
