Introducing Liquid Tangentially Patents (Class 210/788)
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Patent number: 4737271Abstract: A hydrocyclone comprising a vertical-axis separating chamber having an upper cylindrical portion and a lower, coaxial conically-tapering portion has: a tangential inlet at its upper end for a suspension to be classified; an upper, axial outlet for the overflow containing finer particles separated in the hydrocyclone in use; a lower axial outlet for the underflow containing coarser particles; and a hollow spigot surrounding the upper outlet and projecting into the separating chamber. The separation of coarse particles from the overflow is improved by the provision of an extension tube extending coaxially from the spigot into the separating chamber.Type: GrantFiled: April 22, 1987Date of Patent: April 12, 1988Assignee: Richard Mozley LimitedInventor: Geoffrey J. Childs
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Patent number: 4734207Abstract: A process and apparatus for the purification of oils, such as perfluoropolyether oils or silicone oils or oils based on hydrocarbons, polluted by various impurities and in particular by solid matters in suspension, which solid matters can be filtered only with difficulty on conventional filters, comprising a filtration carried out by means of a filter of the tangential-flow type, wherein the pores of the filter element have a diameter below 0.4 micron.Type: GrantFiled: September 8, 1986Date of Patent: March 29, 1988Assignee: Ausimont S.p.A.Inventors: Enzo Calloni, Maurizio Valente, Alfonso Raiola
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Patent number: 4729837Abstract: A method and apparatus for thickening a pulp, in particular a pulp containing fibres. The pulp is thickened hydraulically while it flows through a space between two screen surfaces. Thickening on alternate screen surfaces is prevented for cleaning by closing the valves in the outlets. Pulp is removed from the screen surfaces by vanes.Type: GrantFiled: May 5, 1986Date of Patent: March 8, 1988Assignee: A. Ahlstrom CorporationInventor: Kaj O. Henricson
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Patent number: 4724087Abstract: Separation/extraction/cracking method using a supercritical fluid in which the density of the fluid is reduced in a needle valve and directly brought into an assembly formed by a cyclonic chamber and a recovery pot and of which the walls are heated.Type: GrantFiled: July 2, 1986Date of Patent: February 9, 1988Assignee: Societe Nationale Elf AquitaineInventor: Michel Perrut
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Patent number: 4707274Abstract: A multistage arrangement for countercurrent separation of suspended solids, such as crystals, by means of hydro-cyclone groups connected in series and corresponding pumps and pump wells. For operating with relatively small expenditures with respect to apparatus under high pressures and at high temperatures within a certain, limited temperature range, the hydro-cyclone groups, the pump wells with pumps projecting into the pump wells, and the essential parts or regions of the lines are placed in a common pressure-proof and heat-insulated chamber. In addition, for removing coarser crystallizations and solid particles, an upstream classifier also accommodated in the chamber may be provided. The multistage arrangement can be used in a process for the production of terephthalic acid from dimethyl-terephthalate as the intermediate product, and in a process for the hydrogenation of coal.Type: GrantFiled: December 31, 1986Date of Patent: November 17, 1987Assignees: Amberger Kaolinwerke GmbH, Dynamit Nobel AGInventors: Friedrich Donhauser, Anton Schoengen, Johann H. Schroeder, Jorg Porschen
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Patent number: 4702846Abstract: A method and vortex separator for sequential separation of a medium into different components by means of centrifugal force in a vortex array (2, 2) in a manner that part of a vortex flow (71) proceeds from the outer portions of a vortex (2) into the outer portions of a following vortex (2) and in individual vortexes (2) particles having a major mass concentrate in the outer portions of a vortex and those having a minor mass concentrate in the central portions of a vortex. For increased separation capacity the successive vortexes (2) of a vortex array (2, 2) are backed up substantially on each other while rotating in opposite directions and the flow (71) between individual vortexes is allowed to pass without any substantial movements in the direction of a vortex axis (49).Type: GrantFiled: July 11, 1986Date of Patent: October 27, 1987Assignee: Nobar KyInventor: Seppo I. Ryynanen
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Patent number: 4696737Abstract: An improved method of centrifugally separating, cleaning or classifying solids contained in a fluid flow delivered to a hydrocyclone 2 through inlet 28 wherein the removal of unacceptable material, i.e. rejects, is enhanced and the loss of acceptable material in the rejects is reduced by introducing a secondary fluid having a solids content of less than about 0.2% by weight into the separating chamber 24 through inlet 38 in a substantially helical swirling flow pattern coaxially about the vortex formed by the solids containing flow. An additional flow of low-solids secondary fluid is introduced into a secondary separating chamber 64 disposed at the apex end of the hydrocyclone 2 to receive the rejects flow from the primary separating chamber 24.Type: GrantFiled: February 28, 1986Date of Patent: September 29, 1987Assignee: The Bauer Bros. Co.Inventor: Charles W. Bouchillon
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Patent number: 4688650Abstract: A downhole separator sub for separating drilling mud into a more dense portion and a less dense portion. The apparatus includes a barrel having a central opening therethrough and a cyclone separator cartridge positioned in the central opening. The barrel is attachable to the drill string and the drill bit. The cyclone separator cartridge includes an upper insert, an intermediate cyclone separator housing and a lower insert. An annular flow passage is defined between the cyclone separator housing and an inner surface of the barrel. The upper insert includes an inlet passage providing communication between an upper portion of the barrel central opening and the annular flow passage. The lower insert includes a cyclone inlet providing communication between the annular flow passage and a cyclone chamber in the cyclone separator housing.Type: GrantFiled: November 25, 1985Date of Patent: August 25, 1987Assignee: Petroleum Instrumentation & Technological ServicesInventors: Asadollah Hayatdavoudi, Paul H. Dalier
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Patent number: 4678588Abstract: An apparatus and method for centrifugally separating a continuous flow of substances having differing densities along a constrained helical course. The assembly (10) comprises a helical conduit for constraining the flow having a velocity established along a closed helical tubular course (25), including an inlet (26) and an outlet (28) respectively situated at opposite terminal ends of the conduit. The invention is characterized by a peripheral outlet duct (42) disposed in either of an inner or preferably an outer periphery of the conduit between the inlet (26) and outlet (28) terminals for removing a peripheral fraction concentrated by centrifugal forces in either of the inner or outer periphery, respectively, of the conduit. An unremoved fraction of the flow is allowed to continue along the helical course to and through the terminal outlet.Type: GrantFiled: February 3, 1986Date of Patent: July 7, 1987Inventor: William C. Shortt
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Patent number: 4670161Abstract: In one embodiment, the cyclone separator includes an adjustable sidearm conduit which selectively receives different strata of particles passing through the radially outer sectors of the cylindrical region defined within the cyclone body. The cyclone separator may further include a traveling cone valve to restrict the size of the lower outlet. The vortex finder of the cyclone may include a vortex side port to extract the heavier particles entrained in the forced vortex received by the intake of the vortex finder. An inner vortex finder tube is further disposed in the passage through the vortex finder. In another embodiment, the traveling cone is replaced by a lower outlet head spaced from the lower outlet and the lower portion of the housing defining the apex of the frustoconical region.Type: GrantFiled: August 19, 1985Date of Patent: June 2, 1987Assignee: Premiere Casing Services, Inc.Inventor: Asadollah Hayatdavoudi
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Patent number: 4634535Abstract: A mud slurry cleaning method including steps of distributing a mud slurry across an inclined primary separation screen, vibrating the primary screen through selected movement, cycle and frequency to screen out the liquid and selected particles, concurrently changing the geometric shape of the openings of the primary screen through each vibration cycle to free particles as might tend to lodge while concurrently impacting the primary screen at many spaced apart impact points to loosen particles tending to lodge, cyclonically separating the screened mud into a finally cleaned slurry and a thickened slurry including particles originally included in the original slurry, mixing the thickened slurry with a portion of the screened slurry to form a liquified slurry, distributing the liquified slurry across an inclined gleaning screen, and vibrating the gleaning screen as above described to screen out liquid and desired particles while concurrently changing the geometric shape of the openings of the screen and concurreType: GrantFiled: March 25, 1985Date of Patent: January 6, 1987Inventor: W. Gerald Lott
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Patent number: 4622150Abstract: A cyclone separator (10) having an elongated tapered separating chamber (25) with tangential inlet pipes (26, 28) thereto, and overflow outlet pipe (34) at the larger diameter end of the separating chamber, for outflow of a less dense component of a liquid mixture to be separated, and an underflow outlet (23) at the smaller diameter end of the separating chamber, for outflow of the denser component of the liquid mixture to be separated. The overflow outlet pipe (34) has an orifice (77) which is variably obstructable by a valve member (80) movable lengthwise of the pipe (34), to vary the flow rate through the outlet pipe (34). The degree of contamination of the denser liquid component emerging from the underflow outlet (23) is monitored by a detector (118) which is connected to a control circuit (108) which controls a motor (110).Type: GrantFiled: January 28, 1985Date of Patent: November 11, 1986Inventor: Noel Carroll
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Patent number: 4619771Abstract: A technique for continuous gravity separation of a produced oil and water emulsion has particular utility in separating water for reinjection during a waterflood secondary recovery operation without loss of saleable oil. The method employs a flow direction means to introduce the produced oil-water emulsion into a large volume settling tank substantially tangential to the tank wall and then withdraws the separated oil and water. The apparatus of the instant invention comprises: (a) a tank, (b) an oil-water inlet means, (c) a flow direction means connected to the oil-water inlet means to direct the oil-water emulsion into the settling tank tangential to the tank wall, (d) a bottom-center located water outlet pipe, and (e) an oil outlet pipe.Type: GrantFiled: December 13, 1984Date of Patent: October 28, 1986Assignee: Standard Oil Company (Indiana)Inventors: Joe C. Stall, Steven L. Andrews, Donald D. Curnutt
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Patent number: 4588509Abstract: An apparatus (10) for concentrating the level of a proppant in a slurry under pressure includes a cyclone chamber (22) having a reduced diameter end with an exhaust outlet (40) therein. A slurry and proppant mixture is introduced under pressure into the chamber at an inlet (120) substantially along a path tangential to the side wall of the chamber. Flow of fluid into the cyclone chamber causes the slurry and proppant mixture to follow a spiraled path toward the exhaust outlet such that the heavier constituents in the mixture move near the inside wall of the chamber. A reflux tube (140) is positioned within the chamber and permits the removal of fluid from the low proppant concentration area of the fluid chamber and directs the fluid across a choke (90, 90') and to a deenergizer (94, 94'). The deenergizer includes a housing having an inner longitudinal tube (184) with an inlet (180) for receiving fluid from the cyclone chamber and a closed end opposite the inlet.Type: GrantFiled: February 17, 1984Date of Patent: May 13, 1986Assignee: The Western Company of North AmericaInventors: Patrick C. Hyde, Van C. Burroughs
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Patent number: 4587024Abstract: In one embodiment, the cyclone separator includes an adjustable sidearm conduit which selectively receives different strata of particles passing through the radially outer sectors of the cylindrical region defined within the cyclone body. The cyclone separator may further include a traveling cone valve to restrict the size of the lower outlet. The vortex finder of the cyclone may include a vortex side port to extract the heavier particles entrained in the forced vortex received by the intake of the vortex finder. A control system may be combined with the cyclone separator to analyze the particles extracted from the various outlets from the cyclone and effect a change of the controllable features of the cyclone such as the position of the sidearm conduit and affecting the size of the lower outlet.Type: GrantFiled: August 21, 1984Date of Patent: May 6, 1986Assignee: Premiere Casing Services, Inc.Inventor: Asadollah Hayatdavoudi
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Patent number: 4585465Abstract: Disclosed is a method for causing bubbles in a fluid to coalesce into a coherent mass by use of a vessel having a cylindrical space therein wherein the fluid is caused to flow into the vessel at such a velocity that a vortex is generated to flow from one end of the space to the other while establishing a state in which the pressure on the center axis of the cylinder rises from one end toward the other, then reaches a maximal value and thereafter drops, and this coalescing of the bubbles is effected at the field near the axis of the vortex and between a position close to the inflow position and the position of the highest pressure. The method greatly facilitates deaeration.Type: GrantFiled: August 27, 1984Date of Patent: April 29, 1986Assignee: Ishikawajima-Harima Jukogyo Kabushiki KaishaInventors: Ryushi Suzuki, Joji Yamaga, Kunio Matsui, Hiroaki Tsuchiya
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Patent number: 4578199Abstract: The invention concerns a method and apparatus for separating fluids containing particulate matter into two or more fractions of different densities. A cyclone separator (1) is utilized for this purpose and differs from previous constructions inasmuch as it is a uni-directional, air-cored device having an inlet (7) only for the fluid (A) in the top and two separate outlets (11, 15) in the bottom, remote from the inlet, one (11) of which outlets extend axially of the separator. In operation particles (as defined in the specification) once separated from the streamline (A') in which they enter the device are constrained against traversing that streamline. Means (5) are provided adjacent the inlet (7) to stabilize the initial flow of fluid. The axially extending outlet (11) may be adjustable.Type: GrantFiled: April 25, 1985Date of Patent: March 25, 1986Assignee: Beloit CorporationInventors: John D. Peel, Paul A. Knight
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Patent number: 4576724Abstract: A cyclone separator for removing oil from seawater, the oil being up to a few percent of the volume, is proportioned as follows, symbols having the meaning shown on the FIGURE, a notable feature being the smallness of d.sub.o, the overflow: 10.ltoreq.1.sub.2 /d.sub.2 .ltoreq.25; 0.04<4A.sub.i /.pi.d.sub.1.sup.2 .ltoreq.0.10; d.sub.o /d.sub.2 <0.1; d.sub.1 >d.sub.2 ; d.sub.2 >d.sub.3. The half-angle of the convergence of the taper T.sub.2 is from 20' to 2.degree..Type: GrantFiled: March 4, 1985Date of Patent: March 18, 1986Inventors: Derek A. Colman, Martin T. Thew
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Patent number: 4571301Abstract: Dirty diphenylamine solution is pumped from a reservoir (12) first through a cyclone separator (28) and then through a media filter (50) and back to the reservoir (12). A first large flow rate pump (30) is used to cause flow through the cyclone separator (28). A second lower capacity pump (52) pumps a portion of the solution that is delivered out through the cyclone separator (28) into the inlet (48) of the media filter (50). The remaining portion of the outflow from the cyclone separator (28) is directly returned to the reservoir (12). Fresh water via a conduit (78) and then compressed air via a conduit (82) are flushed through the filter (50), to wash chemical out from the filter (50) and carry it into the reservoir (12). Then, fresh water is directed back in the reverse direction through filter (50), to backwash the filter (50). The water used for backwashing is dumped via conduit (90).Type: GrantFiled: September 19, 1984Date of Patent: February 18, 1986Inventor: Eugene L. Inskeep, Jr.
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Patent number: 4544486Abstract: Cyclone separator having a separating chamber with first, second and third contiguous cylindrical portions arranged in that order and of progressively decreasing diameter, tangential feed inlets to the first cylindrical portion and two outlets each arranged axially and one extending from the first cylindrical portion and the other from the third cylindrical portion. The cyclone separator has a fourth cylindrical portion leading from the outlet from the third cylindrical portion and arranged to provide a constriction against flow therethrough. The outlet from the first cylindrical portion has a flow blockage clearing means operable, under the condition of blockage of that outlet by debris to open up the area available for outflow to facilitate clearance of the blockage.Type: GrantFiled: March 4, 1983Date of Patent: October 1, 1985Inventor: Noel Carroll
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Patent number: 4534869Abstract: The invention comprises a portable, multi-stage filtration system utilized in filtering water for an oil and gas stimulation process commonly known as fracking. Three stages are used, the first being a straining operation reducing the size of particulate matter in the water to about three-eighths of an inch. The second stage is a centrifugal separator, reducing the particle size to about 50 microns. The final stage utilizes a cartridge-type filter giving a final particle size in the water of about 5 microns. In this manner, water which is injected into the well head during the fracking process and which is obtained from readily available sources such as ponds, streams and the like is relatively free of particulate matter which can foul the fracking process. The invention, by virtue of being mounted on a trailer, is portable and thus can be easily moved from site to site.Type: GrantFiled: May 9, 1983Date of Patent: August 13, 1985Inventor: Darrel L. Seibert
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Patent number: 4533475Abstract: A particle precipitator in the form of a cylindrical tank accepts raw water through a tangentially and horizontally mounted pipe. The precipitator is divided into three separate chambers, a lower, middle, and upper chamber separated by two baffles. The raw water enters and circulates into the lower chamber and because the lower chamber is of much larger volume than the inlet pipe, the velocity of the raw water is substantially reduced. During the raw water's residence time in the lower chamber, many of the larger particles are permitted to precipitate out to the bottom of the precipitator tank. The water then flows through a center opening of the lower baffle to the middle chamber and around the outer edges of the upper baffle to the upper chamber. By the time the water reaches the upper chamber, most of the larger particles have had a chance to precipitate out and the water in this upper chamber is substantially cleaner than it was when it entered the precipitator tank.Type: GrantFiled: December 1, 1983Date of Patent: August 6, 1985Assignee: U.M.E., IncorporatedInventor: Richard J. Chiarito
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Patent number: 4521313Abstract: The present invention is a process for purifying a fluid, particularly an industrial coolant fluid, contained within a contaminated mixture which includes mechanically emulsified as well as free or floating oil and various solid matter including metal fines. The process includes several steps for separating and recovering the coolant fluid from the mixture generally by fluid displacement and centrifugal separation. Recovered coolant fluid is regenerated with freshly made coolant fluid and any stored, recovered coolant fluid not immediately reused is recycled through a portion of the system to prevent any degradation of the stored fluid.Type: GrantFiled: April 25, 1984Date of Patent: June 4, 1985Assignee: Donaldson Company, Inc.Inventor: Girma Wolde-Michael
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Patent number: 4519848Abstract: A separator for cleaning material from particles such as oil from sand. A container is provided having upper wall structure with an opening formed therethrough leading to an annular zone extending radially outward from the opening. A cone shaped baffle has an upper open end coupled to the opening and a lower end flaring downward and outward into the container with the lower end of the baffle being located close to but spaced from the side wall of the container. Means is provided for injecting the sand to be cleaned into the upper portion of the container above the baffle. Means is provided for injecting water into the upper portion of the container above the baffle in a direction to cause the sand to swirl downward into the container below the baffle and around the side wall of the container for causing the oil to be removed from the sand.Type: GrantFiled: May 8, 1984Date of Patent: May 28, 1985Inventor: Gene E. Underwood
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Patent number: 4517091Abstract: A solids-liquid separator comprises a basin in which liquid containing solids is introduced from an inlet port of the basin in a direction tangential to the side wall of the basin so as to produce a swirling flow of the liquid. The swirling flow also generates a secondary flow, and both flows promote the floating of floatable solids on the surface and the settling of settlable solids on the bottom. The solids floating on the surface are discharged by the overflowing liquid and the settled solids are discharged through a discharge pipe opening at the bottom of the basin. The liquid from which solids are separated is discharged outwardly from an outflow opening of the basin independent from the discharge of solids. The inlet port and outflow opening are separated circumferentially with respect to the flowing direction so that the circumferential separation thereof subtends at least 180 degrees about the center of the basin.Type: GrantFiled: October 4, 1983Date of Patent: May 14, 1985Assignee: Ebara CorporationInventors: Koichi Yamanaka, Tetsuro Gotoh, Masanori Aoki, Isao Kataoka, Shunro Nishiwaki
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Patent number: 4510056Abstract: In a hydrocyclone separator for separating a mixture into one light and one heavy fraction, with a separation chamber consisting partly of one circular cylindrical part and partly of one conical part, the wall of the separation chamber (1, 2) is provided, along a substantial part of its axial elongation, with a means creating a turbulence to a relatively moderate degree and which extends in a screw path (7) opposite to the screw path in which the flow streams along the wall of the separation chamber. Advantageously, at least one guide bar (6) with substantially axial elongation is provided to give the flow, streaming in a screw path along the wall of the separation chamber (1, 2) a radially inwardly directed component. The screw-path-formed limiting surface (7) of said means may form the angle .alpha.=0.degree.-75.degree. to the axial symmetry axis (9) of the separation chamber (1, 2).Type: GrantFiled: November 30, 1982Date of Patent: April 9, 1985Assignee: AB CellecoInventors: Rune H. Frykhult, Lars-Goran Rundquist
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Patent number: 4501664Abstract: A method and apparatus for achieving high quality treatment of organic waste water (both domestic and industrial types), which can also be used to treat organically contaminated water supplies or to reduce hazardous organic wastes (cyanides, PCBs, etc.)The apparatus operates at elevated pressures (up to about 35 psig), at high levels of dissolved oxygen (over 5 PPM), and at high concentrations of activated sludge (about 10,000 mg/l, MLSS). It consists of four separate process compartments (2 aeration compartments, a separator and a clarifier) which are contained within three vessels or alternatively in two vessels. The process compartments are linked in series by passageways and by piping and are maintained at a uniform pressure using a common manifold.The process is designed for simplicity of operation, compactness, and maintenance by a single part time attendant.Type: GrantFiled: November 10, 1983Date of Patent: February 26, 1985Inventors: Richard W. Heil, Thomas A. Rose
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Patent number: 4497714Abstract: A fuel-water separator comprises a container having entry and exit ports and a progression of spaces through which the fuel moves. The spaces become progressively smaller and are arranged to direct the fuel through a series of downwardly and upwardly directed paths. The lower density fuel moves upwardly while the higher density water tends to move downwardly to drain through drainage openings provided in the lower portions of the spaces. Valves are provided for closing the drainage openings. The valves include float-valve balls which will release the water but hold the fuel. One of the spaces in the container includes a media having a downwardly directed surface upon which the water coalesces to move downwardly and through which the fuel moves to progress to the next space. Another one of the spaces includes a media providing a surface tension-discriminating surface through which the fuel will move and down which the separated water will move.Type: GrantFiled: September 27, 1982Date of Patent: February 5, 1985Assignee: Stant Inc.Inventor: Robert S. Harris
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Patent number: 4488607Abstract: Apparatus and methods are disclosed for drilling a well. A separator sub includes a cyclone separator which separates a stream of drilling mud into a less dense first portion and more dense second portion. The stream of drilling mud flows downward in an annular stream around the cyclone separator and then flows into a lower end of the cyclone separator. The less dense first portion of the stream of drilling mud is directed from the cyclone separator downward to a drill bit so that the drilling mud adjacent the drill bit has a density less than an initial density of the stream of drilling mud. The more dense second portion of the stream of drilling mud is directed upward from the cyclone separator and is ejected into a well annulus with an upward component of velocity and thereby reduces a hydrostatic drilling mud pressure adjacent the drill bit.Type: GrantFiled: September 27, 1982Date of Patent: December 18, 1984Assignee: Petroleum Instrumentation & Technological ServicesInventors: Asadollah Hayatdavoudi, Ladd M. Adams
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Patent number: 4483774Abstract: A tangentially disposed inlet (22) discharges lighter and heavier fluids into a basin (A) causing the fluid mass in the basin to rotate at a rate proportional to the flow. A heavier fluid drain (36) or drains (44) removes most of the heavier fluid causing a free vortex to form above their inlets. This vortex causes an inward spiraling surface current to sweep the floating layer into the center of the vortex, but it lacks the downward velocity to draw it into the heavier fluid stream. A fluid flow controller (42 and 46) regulate this flow so that a depth is maintained that is related to the incoming flow such that the diameter of the concentric layers of lighter and heavier fluids surrounding the eye of the vortex remain essentially constant while the main flow rate slowly varies over a very wide range.A light fluid concentrate tube inlet (32) is placed at the eye of the free vortex. Flow to this tube causes a smaller, amplified, continuation of the main vortex to form.Type: GrantFiled: March 16, 1984Date of Patent: November 20, 1984Inventors: Eugene L. Brill, deceased, by Beatrice Brill, administrator
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Patent number: 4475603Abstract: Apparatus and methods are disclosed for drilling a well. A separator sub is used to separate a stream of drilling mud into a less dense first portion and more dense second portion. The less dense first portion of the stream of drilling mud is directed downward to a drill bit so that the drilling mud adjacent the drill bit has a density less than an initial density of the stream of drilling mud. The more dense second portion of the stream of drilling mud is ejected into a well annulus with an upward component of velocity and thereby reduces a hydrostatic drilling mud pressure adjacent the drill bit.Type: GrantFiled: September 27, 1982Date of Patent: October 9, 1984Assignee: Petroleum Instrumentation & Technological ServicesInventor: Asadollah Hayatdavoudi
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Patent number: 4473478Abstract: A method and apparatus for separating a fluid containing particulate matter into a plurality of fractions.In order to carry out the separation of both heavy and light contaminants from the fluid in an efficient manner, there is provided apparatus comprising a reverse vortex cyclone separator and a Uniflow cyclone (uni-direction cyclone) separator. Heavy contamination is removed from fluid admitted to the reverse vortex cyclone separator at an end remote from the fluid inlet and fluid substantially cleaned of heavy contaminants passes from the reverse vortex cyclone separator to the Uniflow cyclone separator by way of an axial passage and/or circumferential passages disposed at the inlet end of the reverse vortex separator. Respective outlets for the accepts and rejects are provided in the Uniflow separator at a location remote from the inlet.Type: GrantFiled: May 19, 1983Date of Patent: September 25, 1984Assignee: Beloit CorporationInventor: Graham B. Chivrall
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Patent number: 4444229Abstract: An apparatus for increasing the solids to fluids ratio of a slurry is constructed from a chamber which has a substantially circular cross section with a high pressure slurry inlet mounted through said chamber wall with the axis of the inlet normal to a diameter of the chamber. A high pressure slurry outlet is mounted through the chamber wall with the axis normal to a chamber cross section. A low pressure outlet is mounted through the chamber wall with its axis substantially aligned with the axis of the circular cross section so that a certain portion of the fluid entering the high pressure inlet will exit the low pressure outlet. The amount is controlled by a valve inserted in the low pressure outlet. The fluid is preferably of the type which operated by reducing its diameter. Anticavitation may be provided for the chamber by passing air from the outside of the chamber into the chamber when the pressure in the chamber becomes less than the air pressure outside the chamber.Type: GrantFiled: May 18, 1981Date of Patent: April 24, 1984Assignee: Conoco Inc.Inventor: Jeffrey L. Beck
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Patent number: 4415452Abstract: A method and apparatus for treating a continuous stream of organic wastewater using highly concentrated activated sludge (10,000 mg/l MLSS), elevated atmospheric pressure, and high levels of dissolved oxygen. The apparatus consists of three pressurized vessels linked in series by piping, and maintained at equal pressure by means of a common manifold.The first vessel receives the mixed liquor consisting of macerated sewage and return activated sludge and thoroughly aerates it with diffused air bubbles. The liquor then flows by gravity into the second pressurized vessel where flocculation and further aeration occur. From an overflow/transfer box in vessel 2, the liquor flows by gravity into the bottom tier of the third vessel which functions as a cyclone separator. The concentrate is drawn from the bottom of the vessel by a return sludge pump and recycled to the first vessel. The centrate rises into the upper tier of the third vessel where it is clarified and discharged as tertiary quality effluent.Type: GrantFiled: March 18, 1982Date of Patent: November 15, 1983Inventors: Richard W. Heil, Thomas A. Rose
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Patent number: 4394270Abstract: The invention provides an apparatus for the conditioning of sludges comprising two vertically arranged cylindrical vessels. An overflow pipe connecting the two cylindrical vessels is installed tangentially to the upper portions of the cylindrical vessels and may be provided with a detachable coupling. A sludge feed pipe is connected to the first cylindrical vessel and is installed in a direction tangentially opposite the overflow pipe above the bottom of the first vessel. A feed tube is installed tangentially into the sludge feed pipe. Two additional feed tubes are installed tangentially into the overflow pipe. A discharge pipe is installed in a direction tangentially opposite the overflow pipe above the bottom of the second vessel.Type: GrantFiled: August 3, 1981Date of Patent: July 19, 1983Assignee: Kronos Titan-G.m.b.H.Inventors: Achim Hartmann, Dieter Schinkitz
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Patent number: 4384962Abstract: A fuel-water separator comprises a container having entry and exit ports and a progression of spaces through which the fuel moves. The spaces become progressively smaller and are arranged to direct the fuel through a series of downwardly and upwardly directed paths. The lower density fuel moves upwardly while the higher density water tends to move downwardly to drain through drainage openings provided in the lower portions of the spaces. Valves are provided for closing the drainage openings. The valves include float-valve balls which will release the water but hold the fuel. One of the spaces in the container includes a media having a downwardly directed surface upon which the water coalesces to move downwardly and through which the fuel moves to progress to the next space. Another one of the spaces includes a media providing a surface tension-discriminating surface through which the fuel will move and down which the separated water will move.Type: GrantFiled: March 6, 1981Date of Patent: May 24, 1983Assignee: Stant Inc.Inventor: Robert S. Harris
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Patent number: 4371382Abstract: A process and apparatus for the continuous contact and the subsequent separation from one another of immiscible fluids differing in density from one another, in which the entrainment of either fluid by the other is suppressed by obliging the less dense fluid to flow radially inward, from an annular passage between the interlapped walls of two coaxial conduits, through a generally continuous spinning ring of the denser fluid connecting the overlapped outlet of the inner conduit with the overlapping wall of the outer conduit, the two immiscible fluids separating centrifugally from one another with the less dense fluid being withdrawn from an inner space closer to the axis of spin than the surrounding denser fluid being separately withdrawn from the outer conduit.Type: GrantFiled: July 7, 1981Date of Patent: February 1, 1983Assignee: Caribbean Properties LimitedInventor: Leon I. Ross
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Patent number: 4366069Abstract: A process for recovering an industrial coolant fluid from a contaminated mixture and restoring the recovered coolant fluid to a predetermined concentration level and an apparatus for carrying out the process are disclosed.Type: GrantFiled: April 16, 1981Date of Patent: December 28, 1982Assignee: Donaldson Company, Inc.Inventors: Denis J. Dudrey, John T. Herman, Girma Wolde-Michael, Delmer L. Radeztsky
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Patent number: 4297225Abstract: The invention relates to process and apparatus for reducing the viscosity and gel strength of drilling fluids, or muds, without any necessity of introducing additives, or chemicals, into the mud.Type: GrantFiled: August 10, 1978Date of Patent: October 27, 1981Inventor: Bobby G. Hartley
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Patent number: 4278550Abstract: A continuous separator for a pressurized mixture of fluids of different densities based on a progressively increasing centrifugal force acting on the mixture to successively separate fluids in the order of their densities beginning with the densest fluid. A wide range of fluid volumns and fluid mixes can be efficiently and economically separated.Type: GrantFiled: December 14, 1979Date of Patent: July 14, 1981Inventor: John D. Watts
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Patent number: 4251368Abstract: A cyclone separator having a generally cylindrical first portion with a plurality of substantially equally circumferentially spaced tangentially directed feeds, and, adjacent to the first portion and coaxial therewith, a generally cylindrical second portion open at its far end, the first portion having an axial overflow outlet opposite the second portion, the internal diameter of the first portion being d.sub.1, and of the second portion being d.sub.2, and of which the internal length of the first portion is L.sub.1 and of the second portion is L.sub.2, the total cross-sectional area of all the feeds measured at the point of entry normal to the inlet flow being A.sub.i, the shape of the separator being governed by the following relationships:15.ltoreq.1.sub.1 /d.sub.1 .ltoreq.400.1.ltoreq.4A.sub.i /.pi..sub.1.sup.2 .ltoreq.0.20.1.ltoreq.d.sub.o /d.sub.1 .ltoreq.0.251.2.ltoreq.d.sub.1 /d.sub.2 .ltoreq.3.Type: GrantFiled: May 24, 1979Date of Patent: February 17, 1981Assignee: National Research Development CorporationInventors: Derek A. Colman, Martin T. Thew