Central Path Patents (Class 138/44)
-
Patent number: 5588635Abstract: A velcoity diffuser having a conical configueration is secured in the interior of a conduit conducting a flow of liquid to increase the velocity and decrease the pressure of an annular layer of the liquid flow adjacent the interior surface of the conduit while decreasing the velocity and increasing the pressure of a remaining portion of the liquid flow within the annular layer. The velocity diffuser employed in a conduit upstream from a butterfly valve diffuses high velocity flow of the liquid around the periphery of the valve and reduces vibration of the butterfly valve in its open position and cavitation downstream from the valve and thereby reduces the noise heard outside the valve housing.Type: GrantFiled: August 26, 1994Date of Patent: December 31, 1996Inventor: Thomas A. Hartman
-
Patent number: 5588467Abstract: An orifice fitting for measurement of fluid flow therethrough. The orifice fitting includes a plate carrier having an orifice plate and carrier plate seals. The plate carrier may be moved between an upper chamber and a lower chamber. The upper chamber includes a pair of opposed seal rings, each of which is independently tightenable against the plate carrier. At least one removable entry plug in the upper chamber allows access to the plate carrier, the plate and the seals without the necessity of interrupting or disabling fluid flow through said lower chamber.Type: GrantFiled: March 15, 1995Date of Patent: December 31, 1996Assignee: Crane Manufacturing, Inc.Inventor: Dreu E. Crane
-
Patent number: 5565063Abstract: A throttle device for stock suspensions in a paper machine including a feed line, a drain line and a spatially variable cavity connecting the feed line and drain line with each other. The cavities provided with a plurality of nestable walls in which the nesting effects a lengthening of the flow path.Type: GrantFiled: June 30, 1994Date of Patent: October 15, 1996Assignee: J. M. Voith GmbHInventors: Ulrich Begemann, Helmut Heinzmann
-
Patent number: 5546990Abstract: An orifice installation for centering the center of a plate carrying device within a fitting is disclosed. The plate carrying device has a centering opening at its base which interacts with a stop pin in the base of the fitting. The plate carrying device further has ears on either side which interact with ears formed on the sides of an enlarged opening in the fitting to receive the carrying device therein in order to laterally center the carrying device. An opening is also formed in the top of the carrying device in which a plunger pin is positioned. A valve carrier of the fitting has a downwardly facing extension which upon positioning of the plate carrying device within the enlarged opening in the fitting and moving the valve carrier into place will contact the plunger pin, further stabilizing the carrier device within the fitting.Type: GrantFiled: February 9, 1995Date of Patent: August 20, 1996Assignee: Daniel Industires, Inc.Inventors: Donald J. Wass, Anthony E. Carter
-
Patent number: 5538344Abstract: The invention relates to a device (2) designed and adapted to bring an in per se known mixing body (11) to correspond to a fluid flow area which e.g. is defined by a pipeline (1,3) wherein a two-phase fluid may flow, said fluid being desired to be mixed in connection with sampling (4), and to withdraw the mixing body (11) easily and rapidly in order to release said fluid flow area. For this purpose, the device according to the invention comprises a valve housing (6) formed for fluid-tight connection to said pipeline in an area of two diametrally opposite openings (1', 1") of the pipeline, enclosing said openings. Within the valve housing (6), a sluice body (5) carrying said mixing body (11) has been displaceably arranged. The sluice body (5) and thus the mixing body (11) is displaceable between two main positions. In one main position, the mixing body (11) has been brought to correspond with said fluid flow area.Type: GrantFiled: April 19, 1994Date of Patent: July 23, 1996Assignee: Petrotech ASInventor: Bj.o slashed.rn Dybdahl
-
Patent number: 5531287Abstract: A power steering system has a power assist for the steering gear of an automotive vehicle. The power assist comprises a piston reciprocable in a cylinder. Hydraulic fluid is delivered to opposite sides of the piston by a control valve. A pressure line delivers hydraulic fluid to the control valve from a pump. A return line returns hydraulic fluid to a pump reservoir. An anti-rattle device provides a restriction in the return line to suppress the transmission of noise and vibrations from the road travelled through the steering gear to the steering wheel.Type: GrantFiled: March 27, 1995Date of Patent: July 2, 1996Assignee: Chrysler CorporationInventor: Howard M. Sherman
-
Patent number: 5529244Abstract: An improved aspirator device for the accurate blending of an additive liquid such as a liquid concentrate with a pressurized stream of a main liquid such as water. The improvement involves the use of a metering means composed of at least two plastic injection molded restrictors in serial communication. Each restrictor has, as its smallest diameter fluid passage, a hollow bore of from about 0.005 inches to 0.010 inches in diameter and from about 0.005 inches to 0.010 inches in length wherein the dimensions of each hollow bore are such to provide a volume:volume dilution ratio of the additive liquid to the main liquid of from about 1:500 to 1:2,500.Type: GrantFiled: October 4, 1994Date of Patent: June 25, 1996Assignee: S. C. Johnson & Son, Inc.Inventors: Stephen R. Horvath, Jr., Charles E. Seaman, Jr.
-
Patent number: 5529093Abstract: A flow conditioner for use in pipelines to isolate a measuring device from the effects of piping induced disturbances thereby allowing more accurate metering of fluids flowing in pipelines. The device comprises three sections: an anti-swirl device; a settling chamber; and a profile device. The three sections are installed in a pipeline at a predetermined distance upstream from a metering device and at a minimum predetermined distance downstream from a pipeline disturbance. In the pipeline, the anti-swirl device is the furthest upstream, followed by a settling chamber of a specified length, which in turn is followed by the profile device. The anti-swirl device substantially eliminates swirl, the settling chamber minimizes interaction between the anti-swirl device and profile device. The profile plate produces pseudo-fully developed turbulent structure and velocity profile so there is a minimum deviation of the empirical discharge coefficient or meter calibration factor for both short and long piping lengths.Type: GrantFiled: March 24, 1995Date of Patent: June 25, 1996Assignee: Integrity Measurement PartnersInventors: James E. Gallagher, Ronald E. Beaty, Paul J. Lanasa
-
Patent number: 5516209Abstract: A static mixing device includes a disposable mixing conduit, a rigid, reusable housing for supporting the mixing conduit, and a reusable coupling for attaching an inlet of the mixing conduit to an outlet of a source of flowable components to be mixed. The mixing conduit provides a circuitous flowpath for the components between the inlet and outlet. At least two facing sheets of material (or the opposite walls of a tube), at least one of the sheets being flexible, are sealed together at interior obstructions, forming mixing stages that subdivide and recombine the stream of material. The rigid housing can be bayonet shaped or cylindrical, and forms an applicator with the flexible mixing device. The coupling can capture the inlet end of the mixing conduit.Type: GrantFiled: November 15, 1994Date of Patent: May 14, 1996Inventors: Theodore R. Flint, Thomas D. Steinmetz
-
Patent number: 5511585Abstract: A method for providing resistance to flow through a flow passageway comprises partially blocking flow through an orifice of reduced diameter by masking the orifice with an element formed of porous material retained immediately adjacent to every side of the orifice that is expected to be exposed to higher pressure fluid with a greater surface area of the porous masking element being exposed to fluid in the passageway on the higher pressure side of the orifice than is exposed by the orifice to the lower pressure fluid. The orifice may be formed by direct configuration of the passageway walls or by a body adapted to retain the masking element in the body, the outside of the body being adapted to for secure installation within the flow passageway. Resistors in accordance with the present method may have masking elements on one side for use with one directional pressure differentials or masking elements on both sides for use in applications in which bidirectional pressure differentials are anticipated.Type: GrantFiled: March 31, 1994Date of Patent: April 30, 1996Assignee: The Lee CompanyInventor: Leighton Lee, II
-
Patent number: 5505229Abstract: A fluid resistor for providing resistance to flow through a flow passageway is formed by cutting channels and open cylindrical recesses on the surface of and flow passage bores through a frusta-conical body to be seated in a tapered passageway section with the larger diameter end generally subject to higher system pressures than the smaller diameter end. The seating of the resistor body in a tapered passageway section seals and encloses the channels and recesses which then with the fluid passageways through the resistor body, comprise a restricted path for flow to proceed past the installed resistor, the recesses forming cylindrical chambers.Type: GrantFiled: July 12, 1993Date of Patent: April 9, 1996Assignee: The Lee CompanyInventor: Leighton Lee, II
-
Patent number: 5499871Abstract: A device for producing a liquid emulsion of a hydrophobic and hydrophilic liquid is described. The emulsion consists of at least one hydrophobic liquid phase and at least one hydrophilic liquid phase, one of said phases being a disperse phase of the emulsion, which has a stable colloidal state with a particle size of the disperse phase of 1,000 nm or less, preferably a particle size in the range of 100 to 500 nm.Type: GrantFiled: August 7, 1992Date of Patent: March 19, 1996Assignee: Tecno-Bio Co., Ltd.Inventors: Armando Ulrich, Walter H. Ott, deceased
-
Patent number: 5495872Abstract: A flow conditioner for use in pipelines to isolate a measuring device from the effects of piping induced disturbances thereby allowing more accurate metering of fluids flowing in pipelines. The device comprises three sections: an anti-swirl device; a settling chamber; and a profile device. The three sections are installed in a pipeline at a predetermined distance upstream from a metering device and at a minimum predetermined distance downstream from a pipeline disturbance. In the pipeline, the anti-swirl device is the furthest upstream, followed by a settling chamber of a specified length, which in turn is followed by the profile device. The anti-swirl device substantially eliminates swirl, the settling chamber minimizes interaction between the anti-swirl device and profile device. The profile plate produces pseudo-fully developed turbulent structure and velocity profile so there is a minimum deviation of the empirical discharge coefficient or meter calibration factor for both short and long piping lengths.Type: GrantFiled: January 31, 1994Date of Patent: March 5, 1996Assignee: Integrity Measurement PartnersInventors: James E. Gallagher, Ronald E. Beaty, Paul J. Lanasa
-
Patent number: 5482249Abstract: A dynamic seal is provided between a rotatable ball control member and a noise attenuator in a fluid control valve. In one embodiment a noise attenuator is rigidly clamped in the valve body and a floating, spring biased seal is provided in the attenuator and facing the ball. A bi-directional fluid control valve is provided with two rigidly mounted noise attenuators each having a floating, spring biased ball seal. In a second embodiment a noise attenuator is floating, spring biased towards the ball and includes an annular seal retained in the attenuator. Pressure balancing the fluid flow pressure and the spring bias enables substantially zero seal engagement with the ball during ball rotation, while enabling a reliable seal of the ball in the shut-off valve position.Type: GrantFiled: June 21, 1994Date of Patent: January 9, 1996Assignee: Fisher Controls International, Inc.Inventors: Paul J. Schafbuch, Charles R. Kuhlman
-
Patent number: 5474103Abstract: A safety guard or lockout device (22) for a dual chamber orifice fitting device (1) having a removable orifice plate (4). In a normal position when the upper and lower chambers (8, 9) are equal in pressure, the guard (50) of the safety guard device (22) is in a retracted position relative to the square end (36) of a valve gear shaft (18) as shown in FIG. 3 to permit connection of a manual tool, such as a wrench, to square end (36) of valve gear shaft (18) for actuation of isolation valve member (16). When changing the orifice plate (4), the pressure in the upper chamber (8) is reduced to atmospheric conditions and provides a fluid pressure differential between chambers (8) and (9). The fluid pressure differential moves fluid responsive member (30) and guard (50) to an extended position covering the square end (36) of valve gear shaft (18) to prevent access of a manual tool to the shaft (18) thereby preventing operation of the isolation valve (16) separating the upper chamber (8) from the lower chamber (9).Type: GrantFiled: March 22, 1995Date of Patent: December 12, 1995Inventor: Steven P. Klak
-
Patent number: 5468057Abstract: A hydraulic unit for wheel slip control, which is located between a master cylinder and wheel brake cylinders. Reflection damping devices are installed in main brake lines located between the hydraulic unit and the master cylinder which damp pressure waves that originate at control valves of the hydraulic unit. When the control valves are triggered in the wheel slip control mode the pressure waves are largely kept away from the master cylinder. By the means of length adaptation of the main brake lines, the brake lines can also contribute to the damping.Type: GrantFiled: February 24, 1995Date of Patent: November 21, 1995Assignee: Robert Bosch GmbHInventors: Friedrich Megerle, Guenther Hohl, Erich Ludewig, Guenter Kaes
-
Patent number: 5464036Abstract: An orifice fitting for measuring the flow of gas through a pipeline in which the orifice fitting has a body including a pair of opposing body plates that define a body chamber. Passing through both body plates is an aligned flow passage for attachment to a gas pipeline. One of the body plates includes an access opening that is selectively covered and sealed by a hatch. A carrier having a carrier chamber is movably positioned within the body chamber so that the carrier chamber can be selectively aligned with the flow passage or the access opening. Removably positioned within the carrier chamber is an orifice disk having an orifice of a predetermined size through which gas can flow when the carrier chamber is aligned with the flow passage. The carrier chamber is sealed from the body chamber by seal rings positioned on opposing sides of the carrier and biased against the body plates.Type: GrantFiled: February 9, 1994Date of Patent: November 7, 1995Assignee: Valgro, Ltd.Inventors: Murray R. Tomkins, Andrew J. Patterson
-
Patent number: 5462088Abstract: The present invention relates to an exhaust diffuser for a gas turbine, the diffuser being designed to be inserted downstream from a last expansion stage constituted by an outlet duct of circular cross-section containing a central bulb. The diffuser includes a flared transition duct having an inlet end of circular cross-section identical to the cross-section of the outlet duct of the last stage, an outlet end of square cross-section, and four fixed fins disposed inside the ducts close to respective corners of the square cross-section for directing the exhaust gases toward the corners of the square cross-section.Type: GrantFiled: October 25, 1993Date of Patent: October 31, 1995Assignee: Societe Anonyme Dite: European Gas Turbines SAInventors: Jacques Poux, Liberto Gandia, Frederic Rouget
-
Patent number: 5460205Abstract: A field installable choke tube apparatus and a method for installing the choke tube into a pulsation dampener of a compressor. The choke tube is insertable into the pulsation dampener through the opening between the nozzle and the pulsation dampener with a plurality of support arms in a retracted position. The support arms are extended after insertion of the choke tube to maintain the choke tube in a secure and predetermined position within the dampener.Type: GrantFiled: February 14, 1992Date of Patent: October 24, 1995Assignee: Beta Machinery Analysis Ltd.Inventor: David N. Schuh
-
Patent number: 5456288Abstract: The simplex orifice fitting includes a housing having a longitudinal bore therethrough and a plate carrier slot intersecting with the longitudinal bore. A plate carrier, having a circular bore, is slidably received in the plate carrier slot. An orifice plate, having a bore therethrough for the passage of fluid, is carried by the plate carrier. A seal ring is positioned around the orifice plate and received within the circular bore of the carrier plate. Centering pins within the housing are connected to the housing and located transverse to the longitudinal bore of the housing. The plurality of centering pins have an end capable of contacting the plate carrier in an operative position. A sealing bar is connected to the plate carrier and springs are positioned between the sealing bar and the plate carrier to permit relative movement therebetween. The springs force the plate carrier into contact with the ends of the centering pins to properly position the plate carrier in the operative position.Type: GrantFiled: September 19, 1994Date of Patent: October 10, 1995Assignee: Oilfield Production Equipment Co., Inc.Inventor: James L. Jacobs
-
Patent number: 5456289Abstract: A passage choke in particular for the outlet of a plumbing fixture which is installed between the end (9) of the outlet (5) and an aerator (6) or a flow controller, which is provided with a through-flow opening (8) which advantageously has to enlarge it a knockout (12).Type: GrantFiled: October 7, 1993Date of Patent: October 10, 1995Assignee: Ideal-Standard GmbHInventor: Konrad Bergmann
-
Patent number: 5449350Abstract: A flow control device for a liquid agent administration apparatus includes a body. The body has an inlet port, an outlet passage, and a flow control orifice between the inlet port and outlet passage. A deflection surface is located within the outlet passage and is spaced from the orifice to be impinged by a stream of the liquid discharging from the orifice.Type: GrantFiled: July 19, 1994Date of Patent: September 12, 1995Assignee: Abbott LaboratoriesInventors: Con A. Lasaitis, Robert J. Kruger
-
Patent number: 5441081Abstract: An immersion tube for a cyclone has a plurality of rings stacked atop one another and connected to one another. Each ring is comprised of a plurality of plate-shaped segments. The plate-shaped segments of one ring are suspended under the force of gravity from the plate-shaped segments of another ring positioned above said one ring for connecting the segments of each ring to one another. Each segment has contact surfaces for connecting each segment of the one ring to the segments of the other ring positioned above said one ring, wherein the contact surfaces comprise first inclined planes facing outwardly with respect to the immersion tube. Preferably, the contact surfaces comprise also second inclined planes facing inwardly with respect to the immersion tube.Type: GrantFiled: October 29, 1993Date of Patent: August 15, 1995Inventor: Hans-Dietmar Maury
-
Patent number: 5437164Abstract: Set for attaching air conditioner components, including a base (10), which has: component attaching ribs (11); at least two component seating pads (12, 13); and a water drain (21, 22, 24). The base (10) is made of a single piece, incorporating: the component attaching ribs (11) which are disposed on the surface of the base (10); the component seating pads (12, 13) being each defined by a solid piece, shaped for the seating of a respective component (60, 70), the water drain (21, 22, 24) being adequately disposed in fluid communication relative to each other, in order to provide the draining of the undesirable water deposits from the base (10). There is also incorporated, in a single piece, a condenser tube positioning element (27) , disposed to provide adequate positioning for mounting a condenser (40) , and provided in a single piece is at least one compressor spacing element (51), disposed to receive and retain in a determined position, a respective element for attaching a compressor (50).Type: GrantFiled: February 16, 1994Date of Patent: August 1, 1995Assignee: Consul S.A.Inventor: Ettore S. Consiglio
-
Patent number: 5421274Abstract: Apparatus for installation in an associated coal pipe for directing pulverized coal to an associated furnace assembly that includes a housing having an inlet, an outlet, and an access port intermediate the inlet and the outlet. The apparatus also includes a generally circular orifice, a tray dimensioned and configured for carrying and engaging the orifice and apparatus. The chamber is generally aligned with the access port and is dimensioned and configured for receiving the tray with the orifice carried thereon. The apparatus in the housing defining a chamber allows sliding movement of the tray with the orifice carried thereon into and out of the chamber through the access port.Type: GrantFiled: December 21, 1993Date of Patent: June 6, 1995Assignee: Combustion Engineering, Inc.Inventors: Everton S. Gordon, John A. Mazeika
-
Patent number: 5419157Abstract: An accumulator for use in an air-conditioning system wherein a refrigerant fluid is circulated. The accumulator embodies an enclosed housing defining an internal vapor chamber, an inlet tube, an outlet tube having a vapor inlet end in an upper portion of the vapor chamber, and a baffle member located within the housing between the upper and lower portions and within the vapor chamber to impede the flow of incoming partially vaporized fluid causing it to circulate within the chamber and allowing the refrigerant vapor to rise to the upper portion of the vapor chamber and to flow through the outlet tube. The baffle member is an integral part of the housing, being formed at the open end of one of two cup-shaped housing members and turning inwardly to provide a generally ring-shaped baffle member, with the cup-shaped members being joined at their open ends to complete the enclosed housing.Type: GrantFiled: October 20, 1993Date of Patent: May 30, 1995Assignee: Automotive Fluid Systems, Inc.Inventors: Daniel F. Kiblawi, Dean M. Christie, Todd R. Kelpin
-
Patent number: 5419372Abstract: An orifice installation for centering the center of a plate carrying device within a fitting is disclosed. The plate carrying device has a centering opening at its base which interacts with a stop pin in the base of the fitting. The plate carrying device further has ears on either side which interact with ears formed on the sides of an enlarged opening in the fitting to receive the carrying device therein in order to laterally center the carrying device. An opening is also formed in the top of the carrying device in which a plunger pin is positioned. A valve carrier of the fitting has a downwardly facing extension which upon positioning of the plate carrying device within the enlarged opening in the fitting and moving the valve carrier into place will contact the plunger pin, further stabilizing the carrier device within the fitting.Type: GrantFiled: September 23, 1993Date of Patent: May 30, 1995Inventors: Donald J. Wass, Anthony E. Carter
-
Patent number: 5415352Abstract: A manifold is disclosed for increasing the efficiency and consistency of air pressure driven spray systems, especially high volume, low pressure paint spraying systems. Paint or other liquid product is pushed by air pressure from a plastic bottle to the manifold, and from the manifold to a spray gun. The manifold has internal fluid passageways configured to increase the velocity of product discharge, resulting in enhanced product delivery for spray deposition, and adequate consistent discharge regardless of spray gun elevation. A customized product container lid is disclosed for use with the manifold. The apparatus maintains liquid product and pressurized air in separate lines for ease of cleaning.Type: GrantFiled: May 20, 1993Date of Patent: May 16, 1995Inventor: Michael W. May
-
Patent number: 5413145Abstract: A low-cost low-pressure drop critical flow venturi is formed from a single rigid member with mirror image inlet and diffuser sections. The mirror imaging allows the member to be mounted in a flow stream, without regard to the direction of flow, and to still be operative.Type: GrantFiled: February 22, 1994Date of Patent: May 9, 1995Assignee: Texaco Inc.Inventors: Lee D. Rhyne, James R. Stoy
-
Patent number: 5404913Abstract: A housing containing a fuel flow path contains an alloy core formed in two halves. Each half core includes rectangular support walls 1, 2 and 3 arranged in a T configuration. A pair of wedge-shaped elements 4 and 5 extend from each of the two co-planar walls 1 and 2 parallel to the intermediate wall 3 to cause turbulence in the fuel flow. The core is formed from an alloy which comprises tin, antimony and a greater percentage of mercury than lead. A trace amount of platinum may also be included.Type: GrantFiled: September 27, 1993Date of Patent: April 11, 1995Inventor: Michael Gilligan
-
Patent number: 5396931Abstract: Thin metal adaptor rings fit over the elastomeric seal rings holding an orifice plate within a fitting. The thin metal rings have an inside diameter equal to the inside diameter of the pipe line and fitting. Therefore, the inside diameter is maintained without variations as previously resulted from protrusion or recess tolerances of the elastomeric seal rings. The seal ring is modified with notches to hold the thin metal adaptor rings in the desired position.Type: GrantFiled: March 29, 1993Date of Patent: March 14, 1995Assignee: Precision Flow, Inc.Inventor: Daniel Gawlik
-
Patent number: 5392815Abstract: A flow conditioner for providing a relatively ideal flow profile when used in a fluid conduit upstream from an orifice meter comprises a bundle of parallel tubes including a central tube having the largest diameter in the range of 0.2 to 0.5 times the conduit internal diameter. The central tube is surrounded by circular arrays of tubes each having a diameter smaller than the central tube so that the flow conditioner produces an orifice discharge coefficient that does not vary from a coefficient created by non swirling, fully developed ideal flow conditions.Type: GrantFiled: August 5, 1993Date of Patent: February 28, 1995Assignee: Pacific Gas and Electric CompanyInventor: John W. Stuart
-
Patent number: 5379790Abstract: The present invention pertains to an apparatus for restricting supercritical fluid. The apparatus comprises an elastic tube through which the supercritical fluid flows. The apparatus also comprises means for adjustably compressing the elastic tube. The comprising means is in contact with the tube. Preferably, there is also means for facilitating flow through the tube. The facilitating means is in communication with the tube in proximity to the compressing means. In a preferred embodiment, the adjustable compressing means includes a first member having a first opening through which the tube extends. The first opening has a threaded portion. There is also a second member having a second opening through which the tube extends. The second member has a threaded shaft for threadingly engaging with the threaded portion of the first opening.Type: GrantFiled: March 6, 1992Date of Patent: January 10, 1995Assignee: Suprex CorporationInventors: Mark L. Bruce, Douglas J. Keebler
-
Patent number: 5373873Abstract: A gauge block assembly for use in conjunction with the refilling of high pressure gaseous oxygen cylinders. The gauge block is used in an oxygen transfill header or manifold and includes a gas transfer control unit that allows rapid evacuation of the spent oxygen cylinder but that prevents rapid refilling of the oxygen cylinder with fresh oxygen. The gas transfer control unit includes a valve assembly having a restricted orifice therethrough. During the evacuation process, the check valve opens, bypassing the restricted orifice, to allow rapid evacuation of the oxygen cylinder at a first rate of flow. During the refilling process, the check valve closes. The incoming oxygen must flow through the restricted orifice at a second rate of flow less than the first rate of flow thereby regulating the flow of oxygen.Type: GrantFiled: November 12, 1993Date of Patent: December 20, 1994Assignee: Victor Equipment CompanyInventors: Richard W. Miller, Max Gilbert
-
Patent number: 5370283Abstract: A beverage flow controller includes a tube having a first end and a second end, and a length between the first end and the second end including at least three constrictions. The constrictions have a center to center spacing of at least 4.5 times the inside diameter of the tube and have an inside diameter of 0.6 to 0.8 times the inside diameter of the tube. The plurality of constrictions controls the flow and provides a pressure gradient along the length of the tube.Type: GrantFiled: April 25, 1994Date of Patent: December 6, 1994Inventors: Peter K. Nelson, Brian D. Querin
-
Patent number: 5368235Abstract: A flexible water soaker hose is provided having a rigid disk with a fixed aperture for restricting pressurized water through the porous wall of the hose for gentle soaking. The hose is adapted for coupling to a pressurized water supply for delivery of water through the hose. The hose is specially suited for use as a garden hose to irrigate or soak desired areas.Type: GrantFiled: August 9, 1990Date of Patent: November 29, 1994Assignee: Plastic Specialties and Technologies, Inc.Inventors: Matthew L. Drozdoff, Steven R. Hopps
-
Patent number: 5364136Abstract: Joint formers for coupling between duct components having different cross-sections include a core having holes for fixing members and an opening provided with a hollowed out recess. In the opening there is formed at least one series of stepped spot-faced edges forming a series of cavities, each cavity rotated with respect to the others.Type: GrantFiled: October 30, 1992Date of Patent: November 15, 1994Assignee: Alcatel Italia S.p.A.Inventors: Adriano Forti, Enrico Brambilla
-
Patent number: 5353501Abstract: A variable orifice device for passing fluent material under pressure includes a piece of resilient material bent out of its normal shape so that one surface is in tensile stressed condition and the other surface is in compressive stressed condition. A slit extends between the two surfaces. Because of the difference in the stressed conditions of the two surfaces, one end of the slit is open and the other end, at the compressively stressed surface, is in forced closed condition. The piece of resilient material is mounted in its bent, stressed condition in a frame which holds the material in the bent condition. The piece of resilient material may be cut from silicone rubber tubing such as is used for peristaltic pumps. The frame may be two annular members, one of which is a push fit in the other, with the other having an annular shoulder against which a disc of the resilient material is trapped and sealed by the one annular member.Type: GrantFiled: May 4, 1992Date of Patent: October 11, 1994Assignee: Eastman Kodak CompanyInventors: Robert A. Naugle, Philip E. Stoneham, John R. Tinney
-
Patent number: 5341848Abstract: A flow conditioner comprising an apertured circular plate to be placed in a conduit in an orientation substantially perpendicular to the axis of the conduit. The apertures are circular and are arranged in a plurality of radially spaced circular arrays around a central aperture. The center of the central aperture and the centers of the circular arrays coincide with the center of the circular plate. The apertures in each circular array are equally spaced apart around the center of the plate, and all the apertures in any one circular array are of substantially the same diameter. The size and number of apertures are such that the impedance to flow presented by the plate increases with the radius on which a given array of apertures is arranged.Type: GrantFiled: March 6, 1992Date of Patent: August 30, 1994Assignee: Salford University Business Services LimitedInventor: Elizabeth M. Laws
-
Patent number: 5327941Abstract: A cascade orificial resistive device for throttling fluid flow which minies acoustic noise and internal vibrations is described herein. The device has a hollow body defining a fluid passageway, a plurality of perforated plates mounted within the passageway, a fixed end ring adjacent one end of the perforated plates, and a threadable end ring adjacent an opposite end of the perforated plates to place the plates in compression. Each of the perforated plates is a single piece molded plate having an integral outer ring and an integrally formed center keying mechanism as well as a plurality of orifices. The keying mechanism formed on each plate is designed so that adjacent ones of the plates have their orifices misaligned. In this manner, a pressure drop across each plate is created and the fluid flow through the device is throttled. The device of the present invention has utility in a number of onboard marine vessel systems wherein reduced acoustic noise and internal vibrations are particularly desirable.Type: GrantFiled: June 16, 1992Date of Patent: July 12, 1994Assignee: The United States of America as represented by the Secretary of the NavyInventors: Nicholas Bitsakis, James Cassidy
-
Patent number: 5327938Abstract: An adjustable orifice fitting carrier assembly for an orifice fitting having a receptacle and being interposed in a pipeline. The carrier assembly includes a carrier body receivable in the receptacle of the fitting to hold a flat, circular orifice disc having a center orifice therethrough, the orifice disc being perpendicular to the flow through the pipeline. A carrier holding plate is receivable in the receptacle and is in communication with the carrier body. An adjustment mechanism is provided to move the carrier body and the orifice disc in a first direction across the diameter of the pipeline while within the orifice fitting. An adjustment mechanism is also provided to move the carrier body and the orifice disc in a second direction across the diameter of the pipeline, perpendicular to the first direction, in order to concentrically align the center orifice with the axis of the pipeline.Type: GrantFiled: November 20, 1992Date of Patent: July 12, 1994Assignee: Crane Manufacturing, Inc.Inventor: Dreu E. Crane
-
Patent number: 5318073Abstract: An orifice installation for sealing a plate within a fitting is disclosed. The plate has a seal surrounding its outer circumference. The seal has a large base area of elastomeric material and an outer and inner periphery face. A central circumferential extension larger than the distance in the fitting for permitting entry of a plate carrying device is formed between the shoulders. Circumferential indentations formed in the base separate the shoulders from the extension.Type: GrantFiled: June 9, 1992Date of Patent: June 7, 1994Assignee: Daniel Industries, Inc.Inventors: Ray Kendrick, Angela M. Floyd
-
Patent number: 5315859Abstract: A set of selectable custom water flow restrictors is provided to limit water flow to a predetermined selected gallons-per-minute rate. The restrictor is inserted in-line upstream of the faucet, shower or other water appliance to which water passing through the line is delivered. The restrictor has upstream and downstream chambers connected by a restricting orifice, with the chambers being specially designed to eliminate noise from the restrictor, and to cause the restrictor to be self-cleaning. A downstream water pulse-hammer mitigation disc may be used in conjunction with the main portion of the restrictor in appropriate circumstances.Type: GrantFiled: June 23, 1992Date of Patent: May 31, 1994Inventor: John Schommer
-
Patent number: 5309946Abstract: A flow rectifier for mounting in a circular section duct conveying a fluid flow, the rectifier establishing two series of oppositely-rotating vortices in a ring, which vortices cancel one another, and are created by two series of angularly offset fins. The first series of fins is disposed uniformly around the inside surface of the ring while the second series of fins is disposed uniformly around a circumference centered on the center of the ring.Type: GrantFiled: October 15, 1992Date of Patent: May 10, 1994Assignee: Schlumberger Industries, S.A.Inventor: Patrice Ligneul
-
Patent number: 5305796Abstract: An orifice fitting with an orifice plate centered in the flow passage of an orifice fitting via direct contact between a cradle and the orifice plate. The orifice plate is centered via the use of an orifice plate carrier having two channels on its downstream side and two slots located in the bottom portion of the seat, which is located on the plate carrier's upstream side. The plate fits into the seat and a bottom portion of the plate's peripheral edge protrudes through the slots. A cradle having locating surfaces fits through the channels in the orifice plate carrier and firmly holds the orifice plate against the orifice plate carrier. The cradle can be positioned and then secured in place by two adjustable set screws and a stem piece of the cradle. Once the orifice plate has been centered via the positioning of the cradle, the stem piece of the cradle and the set screws can be welded into the body of the orifice fitting.Type: GrantFiled: August 5, 1992Date of Patent: April 26, 1994Assignee: G-H Flow Automation, Inc.Inventor: Steven P. Klak
-
Patent number: 5303742Abstract: A line blind assembly having a pair of tubular members adapted to be connected in a flowline and connected to one another by bolts having nuts on their ends to permit sealing faces on the inner ends of the tubular members to be tightly engaged with sealing faces on the opposite sides of either a disc or a spacer ring upon removal of the other from within the space. A series of circumferentially spaced, hydraulically operable, extendable and retractable actuators are connected at one end to one tubular member and the other end to the other tubular member, so that the sealing faces may be moved toward and away from one another independently of the bolts and nuts.Type: GrantFiled: March 15, 1993Date of Patent: April 19, 1994Assignee: Triten CorporationInventor: Marius R. Junier
-
Patent number: 5303740Abstract: There is disclosed a line blind assembly having a pair of tubular members adapted to be connected in a flowline and connected to one another by bolts having nuts on their ends to permit sealing faces on the inner ends of the tubular members to be tightly engaged with sealing faces on the opposite sides of either a disc or a spacer ring upon removal of the other from within the space. A series of circumferentially spaced, hydraulically operable, extendable and retractable actuators are connected at one end to one tubular member and the other end to the other tubular member, so that the sealing faces may be moved toward and away from one another independently of the bolts and nuts.Type: GrantFiled: October 29, 1992Date of Patent: April 19, 1994Assignee: Triten CorporationInventor: Marius R. Junier
-
Patent number: 5282370Abstract: An accumulator for use in an air-conditioning system wherein a refrigerant fluid is circulated. The accumulator embodies an enclosed housing defining an internal vapor chamber, an inlet tube, an outlet tube having a vapor inlet end in an upper portion of the vapor chamber, and a baffle member located within the housing between the upper and lower portions and within the vapor chamber to impede the flow of incoming partially vaporized fluid causing it to circulate within the chamber and allowing the refrigerant vapor to rise to the upper portion of the vapor chamber and to flow through the outlet tube. The baffle member is an integral part of the housing, being formed at the open end of one of two cup-shaped housing members and turning inwardly to provide a generally ring-shaped baffle member, with the cup-shaped members being joined at their open ends to complete the enclosed housing.Type: GrantFiled: May 7, 1992Date of Patent: February 1, 1994Assignee: Fayette Tubular Technology CorporationInventors: Daniel F. Kiblawi, Dean M. Christie, Todd R. Kelpin
-
Patent number: 5275730Abstract: A baffle means (2) is provided at a dip pipe (1) which latter projects into the separating chamber of a facility for the separation of substance mixtures of a liquid or gaseous medium and a liquid or solid substance under the effect of centrifugal forces, the medium being discharged from the facility through this dip pipe. The baffle means (2) includes at least one baffle (3) having the shape of the shell of a truncated cone, the axis of curvature (4) of which extends in parallel to the longitudinal axis (5) of the dip pipe (1) and is offset with respect to this axis (5). By the baffle means (2), the medium is guided into the dip pipe (1) with simultaneous reconversion of the flow energy into pressure energy, there being imparted to the medium an acceleration oriented axially in the flow-off direction of the medium and an acceleration.Type: GrantFiled: March 18, 1992Date of Patent: January 4, 1994Inventor: Josef Keuschnigg
-
Patent number: 5271853Abstract: An apparatus for reducing liquid flow rates includes a chamber having peripheral walls, one of the walls having an aperture therein. A conduit connected to the chamber at the aperture forms a path from the conduit into the chamber. A 3/32" (0.24 cm) thick rubber sheet mounted to the apertured wall has a circular orifice therein aligned with but smaller than the aperture in the wall. A stainless steel plate affixed to an upper portion of the wall also has a hole aligned with the orifice and the aperture and serves to clamp the flexible membrane to the wall. Liquid passing from the conduit to the chamber has its flow rate reduced by passing through the orifice in the flexible membrane. The flexible membrane can be bowed inward of the chamber under increased upstream pressures to form an interior conical portion to direct any entrained solids from the conduit into the chamber.Type: GrantFiled: September 22, 1992Date of Patent: December 21, 1993Assignee: Thermaco, Inc.Inventor: William C. Batten