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| Number | Title | Issue Date |
| 7311818 | Water separation unit A water separation unit having an inner housing for storm water collection, separation of oils and debris from the storm water, and discharge of clean water. The inner housing is suspended inside an outer housing. The inner housing has a translatable floor with a pl... | 12/25/2007 |
| 7278804 | Methods and systems for delivering lost circulation material into drilling pits Disclosed herein are embodiments of a method and system for delivering lost circulation material, particularly cottonseed hulls, into oil and gas drilling pits. According to one exemplary embodiment, a method of delivering lost circulation material from a bulk sourc... | 10/09/2007 |
| 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 |
| 7001525 | Method for the treatment of water by ballasted flocculation and gravity separation with variable function modes The invention relates to a method for treatment of water, permitting the physico-chemical treatment of water, including a ballasted flocculation stage using a granular ballast material with a density greater than water, followed by, a stage of gravity separation of ... | 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 |
| 6823238 | Selective apparatus and method for removing an undesirable cut from drilling fluid A method and apparatus selective remove undesirable low gravity components from the return stream of drilling mud. The apparatus receives mud returned from the well borehole and transfers the mud to a tank. Mud from the tank is treated in a separation system includi... | 11/23/2004 |
| 6803022 | Device and method for separating components of a fluid sample A device and method for separating heavier and lighter fractions of a fluid sample. The device includes a plurality of constituents comprising a container and a composite element in the container. The composite element is a separator comprising a deformable bellows,... | 10/12/2004 |
| 5879552 | Method and apparatus for a self-purifying filter system A self-purifying filter apparatus comprising (1) a filter having a first surface and a second surface; (2) flow control means, such as a vacuum pump, for causing a stream of fluid interspersed with solid particulates to pass from the first surface to the ... | 03/09/1999 |
| 5770092 | Apparatus and method for purifying water The invention provides a multi-stage apparatus for continuous waste water filtration, comprising a first tank provided with a waste water inlet pipe to supply waste water containing suspended solids to the tank, means for adding a coagulant to the waste w... | 06/23/1998 |
| 5643443 | Water purification system A system for purifying dredging water comprises a mixing compartment and an agitating means that mixes water with a coagulating agent. A discharge means collects the coagulated sediment and delivers it to a centrifugal sediment water separating means. An ... | 07/01/1997 |
| 5573659 | Filter apparatus An improved filter apparatus (10) for removing debris from a free flowing water system (100) is described. The apparatus includes a rail (12) which is mounted adjacent the water supply intake opening (102) and a continuous belt (36) made of chain links (3... | 11/12/1996 |
| 5106492 | Solar powered swimming pool skimmer A swimming pool skimmer includes a paddle wheel that directs fluid and debris into a debris catcher. The paddle wheel is turned by a motor that is powered from an array of solar cells. A solar concentrator focuses solar energy onto the solar cells, and an... | 04/21/1992 |
| 4925550 | Batch-action apparatus for filtering fluid medium A batch-action apparatus for filtering a fluid medium comprises a hermetically sealed housing (1) communicating with systems (9, 10 and 11) for feeding the fluid medium, discharging the clean medium, and evacuating filter cake. The housing (1) accommodate... | 05/15/1990 |
| 4839047 | Intermittent-action apparatus for filtering liquid An intermittent-action apparatus for filtering liquid has a sealed casing (1) in which a hollow cylinder (8) is mounted so as to define with the casing (1) an annular space (9) communicating with a system for removing precipitate. A driven drum (12) is pr... | 06/13/1989 |
| 4832843 | Apparatus for filtering fluid medium The apparatus comprises a hermetically sealed hollow housing (1) accommodating in the interior thereof a flexible filtering member (2) in the form of a hose, the ends of which are turned inside out and attached to the periphery of the inside surface of th... | 05/23/1989 |
| 4599152 | Pure amino acid chelates Pure amino acid chelates and a method of their production are disclosed. The amino acid chelates are free of contaminating inorganic anions. The chelate consists of a metal ion comprising iron, zinc, manganese, magnesium, copper, calcium and mixtures ther... | 07/08/1986 |
| 4555333 | Self-purging separator A self-purging separator for separating impurities from fluid intermittently pumped from a well or the like having a segregating device adapted to be received in such a well for segregating impurities from the fluid for descent of the impurities in such a... | 11/26/1985 |
| 4431535 | Centrifugal separator system A centrifugal separator system for use in purifying drilling mud comprises a generally conical centrifugal separator into which drilling mud to be cleaned is introduced under pressure tangentially to cause centrifugal material flow. A vacuum generated wit... | 02/14/1984 |
| 4428833 | Spent flake drainer-conveyor A spent flake drainer-conveyor for transferring spent flakes from a solvent extraction apparatus to a desolventizer-toaster apparatus, having a closed vapor tight housing extending from the desolventizer-toaster to the solvent extraction apparatus. A drai... | 01/31/1984 |
| 4348279 | Apparatus for cleaning drilling mud An apparatus for cleaning drilling mud, wherein a straightflow hopper (1) has a pipe (2) for collecting drillings deposited from the drilling mud, accommodating a device (3) for removing the drillings. The device for removing the drillings comprises two s... | 09/07/1982 |
| 4333828 | Automatic dump valve A valve for automatically dumping a load of solids entrained within a fluid transport medium in response to flow interruption is disclosed. The automatic dump valve is particularly well-suited for use in combination with a nodule transport riser in deep o... | 06/08/1982 |
| 4250033 | Excess-growth control system for fluidized-bed reactor A control system to prevent the accumulation of excessive cellular material in a fluidized-bed reactor wherein a waste liquid to be processed is conducted upwardly at a velocity conducive to fluidization through a bed of particles which function as a carr... | 02/10/1981 |
