With Test, Signal, Or Indicator Means Patents (Class 366/142)
  • Patent number: 5372789
    Abstract: In devices for the production of a reaction mixture, which forms a foamed plastic, from at least two reaction components and a foaming agent, it is possible to determine the content of foaming agent in a reaction component mixed therewith in that an intermediate container is provided for this mixture. The intermediate container is provided with a circulating line in which are arranged a circulating pump and a temperature-compensating viscometer. Optionally, the foaming agent content can be automatically adjusted to the theoretical value via a computer and pulse lines by influencing the drive means of the dosing pumps for the respective reaction component and the foaming agent.
    Type: Grant
    Filed: October 19, 1993
    Date of Patent: December 13, 1994
    Assignee: Bayer Aktiengesellschaft
    Inventors: Wilhelm Lamberts, James Thompson-Colon, Wilfried Ebeling, Klaus Schulte
  • Patent number: 5320425
    Abstract: A cement mixing and pumping simulator comprises actual and virtual equipment. In response to an operator controlling this equipment, signals representing operating characteristics of a cement mixing system realistically represented by the actual and virtual equipment are generated. These signals are communicated for displaying the operating characteristics to the operator so that the operator obtains real-time responses to the operator's control of the actual and virtual equipment.
    Type: Grant
    Filed: August 2, 1993
    Date of Patent: June 14, 1994
    Assignee: Halliburton Company
    Inventors: Stanley V. Stephenson, Charles D. Donaghe, Herbert J. Horinek, Karl W. Blanchard, Neil A. Pritchard, Jerry N. Browning, John Hanton
  • Patent number: 5261741
    Abstract: Malfunctions of plunger (15) in the mixhead (10) of a system for mixing a plurality of fluids such as polyol and isocyanate for the manufacture of polyurethane foam, which plunger induces variations in fluid pressures as the mixhead operates, are monitored by a method that includes the steps of measuring the upstream pressure of at least one fluid and generating a signal responsive thereto, and comparing the pressure responsive signal to a preselected pressure responsive signal and generating an alarm if the pressure responsive signal comparison falls outside preselected limits.
    Type: Grant
    Filed: June 12, 1991
    Date of Patent: November 16, 1993
    Assignee: The Dow Chemical Company
    Inventor: Alan Hladis
  • Patent number: 5201263
    Abstract: A cooking utensil with a built-in automatic stirring device includes a pot body and a cover which is provided on an open top of the pot body and which confines an enclosed space. A rotary knob is rotatably mounted on the cover and has an axial shaft which extends into the enclosed space. The rotary knob is rotated so as to set a desired stirring method. A gear set is provided inside the enclosed space and rotates with the axial shaft of the rotary knob. A stirring implement has a shaft portion which is rotatably driven by the gear set and which extends into the pot body. The shaft portion has a lower end which is disposed adjacent to a closed bottom of the pot body and which is provided with at least one radially extending stirring blade. A spiral spring is connected to the gear set and is wound when the rotary knob is rotated. The spiral spring gradually unwinds to drive rotatably the gear set and cause axial rotation of the stirring implement for the duration of the stirring period.
    Type: Grant
    Filed: June 12, 1992
    Date of Patent: April 13, 1993
    Inventor: Andy C. Teng
  • Patent number: 5152609
    Abstract: In a method for measuring the temperature of the mix in a mixing chamber of a kneader, the temperature of the mix being continuously measured by means of at least one sensor projecting into the mixing chamber, for the purpose of correcting measuring errors due to the heat conductivity of the sensor housing, a second sensor, in particular in the form of an infra-red sensor, is provided and directly detects the temperature of the mix at certain discrete times during the mixing process, the continuous temperature measuring of the first sensor being corrected according to the measuring of the second sensor when the mixing process is continued.
    Type: Grant
    Filed: July 18, 1991
    Date of Patent: October 6, 1992
    Assignee: Werner & Pfleiderer Gummitechnik GmbH
    Inventors: Walter Hader, Andreas Limper, Wolfgang Engel
  • Patent number: 5111247
    Abstract: A toner concentration sensing system is disclosed for controlling the dispensing of toner into a developer sump. A toner concentration sensor is located in the bottom of the mixing area of the developer sump adjacent one of the mixing augers. The toner concentration sensor can be positioned flush with the bottom of the mixing chamber or the sensor can project slightly from the bottom of the chamber. A magnet is positioned on the rotating mixing auger for rotating with the auger past the toner concentration sensor. As the auger rotates, the magnet with developer material adhering thereto, sweeps the top of the toner sensor to improve the accuracy of the toner concentration readings. A toner dispenser is actuated when the detected toner concentration goes below a predetermined limit.
    Type: Grant
    Filed: July 30, 1991
    Date of Patent: May 5, 1992
    Assignee: Xerox Corporation
    Inventor: Stephen J. Nichols
  • Patent number: 5099688
    Abstract: The present invention relates to a method for determining the level of concrete in a concrete mixer comprising the steps of contacting the exterior of concrete mixing drum with a strip of thermal color sensitive material and observing the interface on the color sensitive material produced by the temperature differential between the concrete and the air above. This level can then be lined up horizontally with a graduated volume indicator, to yield the concrete volume in the truck to aid in determining an effective amount of additive to be added to the concrete.
    Type: Grant
    Filed: March 25, 1991
    Date of Patent: March 31, 1992
    Assignee: W. R. Grace & Co.-Conn
    Inventor: John O. de Mars
  • Patent number: 5071077
    Abstract: An electric kitchen appliance with mulitiple functions for treating foodstuffs comprises a casing (1,1') of which a base (2, 2') is adapted to receive various accessories comprising a bowl (3) provided with a cover (4) and a tool (5, 6, 8), and an electrical control device for the current supply of the motor comprising a detector for the presence of the cover on the bowl and a speed changer for the motor. The electric control device of the motor comprises also a detector of the presence of the bowl on the base, as well as structure for the identification of the covers which are associated with the detector for the presence of the cover on the bowl and which are adapted to control the speed changer so as to match to each cover an appropriate speed of the tool (5, 6, 8).
    Type: Grant
    Filed: January 15, 1991
    Date of Patent: December 10, 1991
    Inventors: Mustapha Arroubi, Vital A. Parise
  • Patent number: 5062458
    Abstract: The invention is directed to an annular vessel for holding radioactive soions which contain solids. The vessel has an inclined bottom and a discharge at the lowest point of the vessel. A plurality of pulsators charged with air are mounted in the ring-shaped interior of the vessel so as to extend into the solution. The pulsators operate to completely and evenly discharge the undissolved solids out of the vessel with the flow of solution and to prevent sedimentation. At their bottom ends, the pulsators have respective outlet nozzles which are arranged parallelly to the vessel bottom and are directed toward the lowest point thereof.
    Type: Grant
    Filed: March 29, 1990
    Date of Patent: November 5, 1991
    Assignee: Deutsche Gesellschaft fur Wiederaufarbeitung von Kernbrennstoffen mbH
    Inventors: Norbert Rohleder, Hubert Praxl, Dietrich Gobel-Rick
  • Patent number: 5025927
    Abstract: Different embodiments of a respirometer are described which are used to determine the BOD of less dilute samples that can be permitted in the standard BOD test procedure. Different embodiments of the respirometer are formed of a chamber, walls of which are formed from a membrane permeable to oxygen to permit reoxygenation of the contained sample in the respirometer. In order to ensure reliability in the computed value of BOD, the chamber of the respirometer incorporates a framed structure.
    Type: Grant
    Filed: October 11, 1988
    Date of Patent: June 25, 1991
    Inventor: Raj P. Garg
  • Patent number: 4993593
    Abstract: A flowable medium, such as a liquid, a semi-liquid, or a liquid containing particulate matter, can be automatically dispensed in a premeasured amount or in a continuous stream. When the flowable medium is being dispensed in a premeasured amount, such amount is isolated from the remainder of the flowable medium during the dispensing operation so that it can be dispensed independently of any head pressure created by the remainder of the flowable medium. By using a temperature sensor in combination with a microcomputer system for the purpose of detecting large fluctuations in the temperature of the flowable medium, it is also possible to determine when the remainder of the flowable medium reaches a low level condition.
    Type: Grant
    Filed: July 21, 1989
    Date of Patent: February 19, 1991
    Inventors: Ralph Fabiano, Fortunato Colacino
  • Patent number: 4966690
    Abstract: In accordance with illustrative embodiments of the present invention, a chlorine gas inductor unit for use in wastewater treatment includes an elongated bearing frame having upper and lower bearing housings secured to the opposite ends of a tubular member, a drive shaft extending axially through the bearing frame and being supported by bearings in the upper and lower housings, a mechanical seal housing mounted at the lower end of the bearing frame and housing a face seal assembly that prevents contamination of a non-hydrocarbon lubricating oil contained in the bearing frame with wastewater or chlorine gas, the drive shaft having a short-length portion extending below the seal housing, a propeller mounted on the lower end of the drive shaft and driven at high speed to cause a high velocity flow of wastewater, and orifice means responsive to rotation of the propeller and such high velocity flow to cause chlorine gas from a remote supply to be sucked through the orifice means and mixed with the wastewater flow.
    Type: Grant
    Filed: June 21, 1989
    Date of Patent: October 30, 1990
    Inventors: Jack C. Gardiner, Russell P. Holland, II
  • Patent number: 4944600
    Abstract: Disclosed is an agitator apparatus for mixing tanked fluids while simultaneously wiping any adherent fluids from the tank wall. The device comprises a fluid agitating means rotationally mounted within the tank for mixing the fluid held therein. At least one tank wall wiper blade is attached to the fluid agitating means to skim or wipe fluid from the tank wall as rotational movement of the agitation means occurs. The agitation means may, in itself, comprise one or more perforated mixing panels attached to a rotating shaft member so as to effectively mix the fluid as the shaft member is rotated.
    Type: Grant
    Filed: October 31, 1989
    Date of Patent: July 31, 1990
    Assignee: The Ink Company
    Inventor: John L. McKelvey
  • Patent number: 4898472
    Abstract: Disclosed is a plant of batch system for producing a composite paving material by using a bituminous waste pavement material, which comprises a heating means equipped with a new aggregate material introduction shoot and a bituminous waste material introduction shoot, the former shoot being connected to a new aggregate material supply passageway and the latter shoot being connected to a reproduction material supply passageway. The plant also comprises a ratio control section which is intended to compare with each other respective supplying indicated values of new and waste aggregate materials as measured by conveyor scales disposed with respect to their corresponding supply passageways, and thereafter proportionally control the value of the waste material relative to the value of the new material so that both the values may bear a predetermined mixing ratio. The ratio control section, thereafter, generates a command control signal to an inverter involved in the waste material supply passageway.
    Type: Grant
    Filed: December 5, 1988
    Date of Patent: February 6, 1990
    Assignee: Taisei Road Construction Company, Ltd.
    Inventor: Hideo Sasaki
  • Patent number: 4887217
    Abstract: A process for shading paint to match the color of a standard paint which process involves the use of the determination of the theoretical dry color values of the paint being manufactured and the addition of the appropriate amounts of the components of the paint which must be added to provide a final dry color which falls within the prescribed color tolerance.
    Type: Grant
    Filed: January 4, 1985
    Date of Patent: December 12, 1989
    Assignee: The Sherwin-Williams Company
    Inventors: Charles J. Sherman, Kenneth S. Simone
  • Patent number: 4881820
    Abstract: A method of and a device for proportioning at least one viscous substance and specifically the components of viscous polycomponent mixtures, wherein each component is charged into respective squeezing unit and delivered into a mixing and discharge unit in a subsequent squeezing operation.The inventive aspect of the method and the inventive device is characterized by the fact that the pressure in the squeezing unit is adapted to the operating pressure in the mixing and discharge unit prior to the squeezing operation.
    Type: Grant
    Filed: February 11, 1988
    Date of Patent: November 21, 1989
    Assignee: Reinhardt Technik GmbH & Co.
    Inventor: Peter Luckhoff
  • Patent number: 4881819
    Abstract: The invention relates to a method and apparatus for preparing concrete mortar. In order to regulate the moisture content of the concrete mortar a sand sample is taken of the sand used. This sand sample is dried. The amount of water added to a concrete charge is regulated subject to the weight difference of the sand sample prior to and after drying.
    Type: Grant
    Filed: January 20, 1988
    Date of Patent: November 21, 1989
    Assignee: Deltracon Deventer B.V.
    Inventor: Frederik C. Blees
  • Patent number: 4856909
    Abstract: Standardized tests of the dissolution rates of pharmacologic dosage units such as salicylic acid tablets, for example, are conducted by placing the dosage unit in a liquid-permeable cylindrical wire basket and rotating the basket in the solvent about two different axes, preferably one vertical axis and one horizontal axis. The apparatus comprises an outer vertical tube to which the basket is mounted off center from the vertical axis of the tube so that it orbits around the vertical axis when the vertical outer tube is rotated; the basket is mounted on a horizontal shaft which can rotate about its horizontal axis. An inner shaft extends vertically through the outer vertical shaft, and bevel gears are provided between the horizontal shaft and the inner vertical shaft so that relative rotation of the upper ends of the inner and outer vertical shafts with respect to each other about their axes causes the basket to rotate about the horizontal shaft axis.
    Type: Grant
    Filed: June 23, 1986
    Date of Patent: August 15, 1989
    Assignee: Rorer Pharmaceutical Corporation
    Inventors: Gunvant N. Mehta, Dennis J. Wertan, Wayne M. Grim
  • Patent number: 4854712
    Abstract: A multi-color luminous stirrer including a handle housing therein a battery and a shank composed of two tubular-shaped electrodes coupled together mechanically through an insulating ring. When the tubular-shaped electrodes are submerged in a drink, a switching circuit is actuated and in accordance with the movement of an electroconductive ball placed freely on a flat electrode that is connected to the battery and encircled by curved electrodes which are electrically connected to a plurality of illuminants housed at the tip of the shank by transparent or translucent cap, ON and OFF states are created between the electrodes. Thus, the illuminants emit light at random. The tubular-shaped shank may alternately be formed of a highly heat conductive material, with a bimetal housed therein so that when the tubular-shaped shank is dipped in a drink which is different in temperature from that of the ambient air, the switching circuit is actuated.
    Type: Grant
    Filed: April 14, 1988
    Date of Patent: August 8, 1989
    Assignee: Chikuma Kouki Co., Ltd.
    Inventor: Yasumasa Mori
  • Patent number: 4830507
    Abstract: A method of and apparatus for the thickening of mud-like slurries produced during the course of industrial processes, e.g. the thickening of red muds produced during operation of the Bayer process for the production of alumina. The invention involves the step of feeding the slurry, a fluocculating agent and washing liquor to a deep thickening vessel having an underflow outlet for the thickened slurry and an overflow outlet for clarified washing liquor. The solids content of the slurry leaving the underflow outlet is increased and kept constant by the use of a stirrer having a number of generally vertical rod-like members rotated in the vessel above the underflow outlet. The stirrer enhances dewatering of the slurry and prevents undue build up of thick inactive mud which may block the outlet or cause fluctuations in the solids content of the thickened slurry.
    Type: Grant
    Filed: February 24, 1987
    Date of Patent: May 16, 1989
    Assignee: Alcan International Limited
    Inventors: Peter F. Bagatto, Donald L. Puxley
  • Patent number: 4823987
    Abstract: A liquid mixing system and method are disclosed for automatically preparing a batch mixture containing predetermined quantities of liquids such as spray dampening solutions or silicone emulsions used in the printing industry. The system comprises a holding tank having one or more liquid columns in liquid communication with the tank so that the level of liquid in the column, or columns, will be the same as the level of the liquid in the tank. Liquid level detection devices preferably in the form of static capacity-type proximity switches sense the level of the liquid in the column, or columns, and liquid charging devices responsive to the liquid level detection devices charges the liquids into the tank in seriatum each time raising the level of the liquid in the tank and in the columns to the next detected level.
    Type: Grant
    Filed: April 28, 1986
    Date of Patent: April 25, 1989
    Assignee: Ryco Graphic Manufacturing, Inc.
    Inventor: Thomas G. Switall
  • Patent number: 4822172
    Abstract: An electric food mixer includes an electronic control for operating the mixer in one of a plurality of three modes as selected by a user. In a normal mixing mode, the user selects the speed of the motor and starts and stops the motor by manually actuating a switch. In a timed mixing mode, the user selects the desired running time of the motor as well as the speed of the motor. The motor is started in this mode in response to the manual actuation of a switch, but automatically stops upon the expiration of the selected running time. In a utility timer mode, the mixer is controlled to operate as a utility count-down timer. Upon starting the mixer in the normal mixing mode or in the timed mixing mode, the motor is controlled to start at a slow start-up speed that is less than any of the selectable mixing speeds.
    Type: Grant
    Filed: December 23, 1987
    Date of Patent: April 18, 1989
    Assignee: Whirlpool Corporation
    Inventor: Richard L. Stottmann
  • Patent number: 4818113
    Abstract: The invention relates to a process for mixing a polymer composition using an internal mixer having rotors 18, 20 rotatably mounted in a chamber 12, a ram 28 by which pressure can be applied to material in the chamber 12, and temperature control for the mixer. Materials are introduced into the chamber 12 and, after introduction of all the materials, at least three mixing variables e.g. temperature, time and energy, indicating mixing quality are monitored and control variables e.g. rotor speed and/or ram pressure adjusted dependent on the monitored mixing variables to achieve previously defined targets or if all are not simultaneously achievable, the most significant target. Control is initiated when the ram has reached a predetermined position and when at least one preselected condition e.g. time, temperature or energy, has been achieved.
    Type: Grant
    Filed: April 24, 1987
    Date of Patent: April 4, 1989
    Assignee: Farrel Bridge Limited
    Inventor: Sureshchandra R. Patel
  • Patent number: 4804505
    Abstract: In a method of operating a screw extruder having a drive motor in which the speed of rotation of the drive motor is controlled, in order to achieve as constant a quality of product as possible, the speed of rotation is controlled depending on the specific energy input in such a manner that the specific energy input is maintained substantially constant. A control depending on the product temperature may advantageously be superimposed on the control keeping the specific energy constant in the form of a cascade control. A screw extruder for carrying out the method has a housing in which a screw is mounted, a drive motor having a variable speed for continuously driving the screw, feed devices for supplying basic products, additives and the like, and a control device for controlling the speed of rotation of the screw.
    Type: Grant
    Filed: May 20, 1987
    Date of Patent: February 14, 1989
    Assignee: Werner & Pfeiderer GmbH
    Inventor: Wilfried Venzke
  • Patent number: 4783172
    Abstract: A respirometer for determining oxygen demand of respiring liquid is described. The respirometer has a chamber to be filled with the liquid. The chamber includes a base plate, a cover plate, a plurality of supports extending between the base plate and the cover plate, and a side wall made of an oxygen permeable membrane. The cover plate has an opening therein which is capable of supporting a dissolved oxygen probe. The opening also acts as an inlet and outlet to the chamber. A rotor is provided in the chamber for stirring the liquid.
    Type: Grant
    Filed: December 9, 1987
    Date of Patent: November 8, 1988
    Inventor: Raj P. Garg
  • Patent number: 4776825
    Abstract: In a double thermal coupled radiometer for preferable use with a centrifuge, an improved radiometer configuration is disclosed. The isothermal radiometic system improved is of the double junction variety (preferably copper-constantan-copper) and includes a black body housing defining a central concavity. The central concavity has a black body disk at the bottom thereof. The disk is preferably suspended by a copper and a constantan wire with one junction formed on the surface of the disk and the other junction formed on the surface of the housing. The improvement includes a plurality of and preferably three annular baffles defining central, circular and preferably concentric opening. These baffles are lodged in the opening of the housing above the mounted radiometer disk. The annular baffles on the side towards the radiation sources are coated as a black body so as to increase the thermal coupling of the black body housing to the ambient being radiometically observed.
    Type: Grant
    Filed: May 22, 1987
    Date of Patent: October 11, 1988
    Assignee: Beckman Instruments, Inc.
    Inventor: Robert Giebeler
  • Patent number: 4775241
    Abstract: A liquid distributing apparatus, particularly for incorporation in lids or covers of 3 to 5 gallon containers, has a four-way input valve for delivering water under pressure to wash hands, clean materials, etc., fill the tank on which the lid is placed and to drive rotor shafted to a spur gear which drives an agitator for keeping the concentrate in the tank stirred-up, with a manual input for initially stirring-up or agitating the concentrate. An indicator is provided on the manual drive to show that the agitator (and hence the rotor) is operating. An aspirator or jet pump receives the liquid or water downstream of the rotor and the input aspirator or vacuum line from the concentrate or tank passes through a ball check valve which has an indicator coupled thereto for indicating the flow of concentrate from the tank to the jet pump to be mixed with the water. A valve with predetermined controls the degree or ratio of concentrate.
    Type: Grant
    Filed: June 18, 1987
    Date of Patent: October 4, 1988
    Inventor: William C. Stuckey
  • Patent number: 4764019
    Abstract: An apparatus and method for mixing dry particulate material and liquid is shown. The dry material is initially mixed in a mixing module. The pre-mixed slurry then passes to a two stage mixing tank system featuring a smaller, primary tank and a larger capacity, secondary tank. The premixed slurry passes into the primary tank for additional mixing, then flows over a weir into the secondary tank. A portion of the slurry in the secondary tank is recirculated to the mixing module while the density of the slurry in the primary is monitored. The overall slurry density is controlled by adjusting the dry material entering the mixing module based upon the density reading taken from the primary tank.
    Type: Grant
    Filed: September 1, 1987
    Date of Patent: August 16, 1988
    Assignee: Hughes Tool Company
    Inventors: Donald R. Kaminski, Burnie Sims
  • Patent number: 4747690
    Abstract: An apparatus and method for controlling the quality of bread dough is provided. Instruments such as a strain gauge, a thermometer, a weighing device, and a pH meter are disposed, and values measured with these instruments are indicated on a display for monitoring.By comparing the temperature, weight, and pH values of the dough and strain caused on an agitator with control values stored in a computer, undesirable products can be eliminated and dough temperature can be adjusted during the kneading operation.
    Type: Grant
    Filed: October 27, 1986
    Date of Patent: May 31, 1988
    Assignee: Rheon Automatic Machinery Co., Ltd.
    Inventor: Torahiko Hayashi
  • Patent number: 4746221
    Abstract: A device with vertical buoyancy tanks fitted to its upper part is provided with rotors which generate horizontal and vertical propulsion, and which stirs the liquid uniformly as it moves freely through a liquid storage tank, thereby preventing the accumulation of sludge. The vertical buoyancy tanks stabilize the stirrer and provide a restoring force if the stirrer is upset. The stirrer is fitted with an ultrasonic ultrasonic wave emitter, and ultrasonic receptors are installed at several positions in the liquid tank. An ultrasonic pulse is emitted after a certain interval when the stirrer is at rest on the bottom of the tank. The position of the stirrer is computed for each pulse emission, and the average is taken to give the actual position of the stirrer.
    Type: Grant
    Filed: May 8, 1986
    Date of Patent: May 24, 1988
    Assignees: Nippon Mining Co., Ltd., Automax Kabushiki Kaisha
    Inventors: Katsuji Okumura, Hiroshi Maeda, Isao Taoka
  • Patent number: 4725149
    Abstract: An automatic dissolving device for dyes or the like according to the present invention comprises:(1) an electromagnetic valve situated midway in a pipeline from a medium or stock solution tank to a dissolving or mixing vessel,(2) a turntable with a number of holes around the circumference to accept a number of dissolving or mixing vessels,(3) an electronic type balance below the turntable to weigh the dissolving or mixing vessels and one or more magnet-type stirring devices arranged below the turntable so as to stir the solution in the dissolving or mixing vessel, and(4) a mathematical operation control device, so as to enable the solution of dyes or the like accurately and automatically and under a sufficiently stirred state without requiring much time and skill.
    Type: Grant
    Filed: July 16, 1986
    Date of Patent: February 16, 1988
    Assignees: Kabushiki Kaisha Kawakami Tekkosho, Nippon Kayauk Kabushiki Kaisha
    Inventors: Taichi Kawakami, Hiroshi Shintate
  • Patent number: 4722371
    Abstract: A portable metabolism container for ecological testing. A substantially air and water tight container having continuous inner walls includes a diffuser unit mounted within the container and operated from a portable power source. The diffuser unit is operable to ingest and discharge water within the container and to set up a uniform water velocity simulating natural flow conditions over a substrate placed within the container.
    Type: Grant
    Filed: October 2, 1986
    Date of Patent: February 2, 1988
    Assignee: Reid, Crowther & Partners Ltd.
    Inventors: Graham C. Seagel, William F. A. Duncan, Mark D. Munn
  • Patent number: 4720998
    Abstract: A crude oil sampling system that obtains and stores a representative sample of crude oil as the oil flows from a stock tank into a sales line. As crude oil flows from the storage tank during a finite period of time, a much smaller flow is diverted to a closed sample vessel. Accordingly, small sequential samples of the crude flowing from the stock tank is removed so that a true sample is protected within the closed vessel. Hence, the crude contained downstream of the stock tank changes in composition over a period of time while the crude contained within the sample vessel remains unchanged. When it is desired to evaluate the quality of the sample contained within the closed vessel, a circulation pump is energized and the contents of the sample vessel is thoroughly mixed. A hydrometer, including a thermometer associated therewith, is placed within a special gravity sample chamber which heretofore has been isolated from the sample vessel.
    Type: Grant
    Filed: June 13, 1986
    Date of Patent: January 26, 1988
    Inventor: James D. Hogue
  • Patent number: 4715723
    Abstract: A mixing arrangement (113) for mixing volatile materials (118, 119) in a mixing container (114), including mixing blades (118, 119) and a drive mechanism (117), at least one of said blades (118, 119) holding a temperature detection arrangement (250) effective for detecting bulk temperature levels in said materials during mixing operation and thereby enabling control of the velocity of the mixing blades (118, 119) in the materials being mixed, said temperature detection arrangement being effective for external communication of information developed during detection operation.
    Type: Grant
    Filed: November 28, 1986
    Date of Patent: December 29, 1987
    Assignee: United Technologies Corporation
    Inventors: Roy W. Anderson, Stephen J. Ross, Larry D. Henderson
  • Patent number: 4705083
    Abstract: A machine for automatically batching coloring agents for paint or varnish is disclosed. The machine includes a computerized method for calibrating the amount of coloring agent dispensed with solenoid valves which calculate the viscosity and the delay time for opening and closing the valves so that coloring agents are dispensed with a minimum of less than plus or minus 1% error.
    Type: Grant
    Filed: June 11, 1986
    Date of Patent: November 10, 1987
    Assignee: Corob S.R.L. Automatic Machinery Project
    Inventor: Edoardo Rossetti
  • Patent number: 4704035
    Abstract: A remotely transmitting batch mixer has a bowl and a shaft carrier mounting shafts with mixers which mix material in the bowl. Drive mechanism revolves the carrier about an axis generally centrally aligned with the axis of the bowl to move the shafts relatively orbitally about the bowl, and at the same time revolves them about their individual axes. A static enclosure, which mates with the bowl, is provided for the carrier and drive mechanism. Sensor mechanism responsive to the temperature of the material in the bowl and/or to loads applied to one of the shafts is mounted on one of the shafts and connects with slip ring mechanism and an electromagnetic signal transmitter mechanism on the revolving carrier and a signal receiver mounted on the static enclosure.
    Type: Grant
    Filed: October 6, 1986
    Date of Patent: November 3, 1987
    Assignee: Baker Perkins, Inc.
    Inventor: James E. Kowalczyk
  • Patent number: 4682737
    Abstract: In a light powder granule treating system, a light powdery granule supplying member is connected to a light powdery granule treating member through a supply conduit, and a sensing member is arranged for detecting the light powdery granules being so stagnant within the conduit as to form a massive flow of a thickness which exceeds a predetermined value. When the sensing member detects the stagnant light powdery granules, it generates a detection signal which in turn stops the light powdery granule supplying member from operating.
    Type: Grant
    Filed: November 15, 1985
    Date of Patent: July 28, 1987
    Assignee: Asahi Breweries Ltd.
    Inventor: Kyushichi Ono
  • Patent number: 4678341
    Abstract: A liquid distributing apparatus, particularly for incorporation in lids or covers of 3 to 5 gallon containers, has a four-way input valve for delivering water under pressure to wash hands, clean materials, etc., fill the tank on which the lid is placed and to drive rotor shafted to a spur gear which drives an agitator for keeping the concentrate in the tank stirred-up, with a manual input for initially stirring-up or agitating the concentrate. An indicator is provided on the manual drive to show that the agitator (and hence the rotor) is operating. An aspirator or jet pump receives the liquid or water downstream of the rotor and the input aspirator or vacuum line from the concentrate or tank passes through a ball check valve which has an indicator coupled thereto for indicating the flow of concentrate from the tank to the jet pump to be mixed with the water. A valve with predetermined controls the degree or ratio of concentrate.
    Type: Grant
    Filed: May 16, 1985
    Date of Patent: July 7, 1987
    Inventor: William C. Stuckey
  • Patent number: 4676656
    Abstract: A fluid handling system is described wherein a small fluid volume is placed on a reversibly-deformable support, which can be deformed to form a cavity. As the fluid clings to the surface of the support, it is physically agitated and mixed as the support is deformed. The deformable support can be utilized to provide fluid containers of varying sizes, to accommodate different fluid volumes and as a transport mechanism to move fluid from one location to another.
    Type: Grant
    Filed: January 25, 1985
    Date of Patent: June 30, 1987
    Assignee: Syntex (U.S.A.) Inc.
    Inventors: Robert D. Cook, Donald M. Besemer
  • Patent number: 4668096
    Abstract: A start-up process is provided for bringing a material to an operative melted condition while the material is being heated, including the steps of attempting to agitate the material, sensing whether resistance to agitation is excessive, deactivating the attempts if excessive resistance is encountered, reactivating the attempt after a preselected time period, and repeating the foregoing steps until the operative melted condition has been reached or the deactivation step has occurred a predetermined number of times. Also provided is a device for practicing the above method, comprising a sensing means for sensing excessive resistance, a switching means for deactivating the attempt to agitate, and a timing means for reactivating the attempt to agitate after a predetermined time period.
    Type: Grant
    Filed: July 3, 1985
    Date of Patent: May 26, 1987
    Assignee: The Upjohn Company
    Inventor: Samir Saaty
  • Patent number: 4664528
    Abstract: An apparatus and method for mixing water and a water-soluble emulsion polymer by providing the optimum amount of mixing energy required for the polymer to effectively dissolve the polymer in the water without causing the polymer molecules to shear into smaller polymer molecules. The apparatus includes a pump means, a static mixing means and a mixing chamber means. A first circulation means connects the pump means to the mixing chamber means. A second circulation means connects the pump means to the static mixing means and further connects the static mixing means the mixing chamber means. A third circulation means connects the static mixing means to the mixing chamber means. Additionally, a flow control means selectively circulates a combined stream of the water and the polymer alternatively through the first circulation means, the second circulation means or the third circulation means. The method of using this apparatus is also disclosed.
    Type: Grant
    Filed: October 18, 1985
    Date of Patent: May 12, 1987
    Assignee: Betz Laboratories, Inc.
    Inventors: James C. Rodgers, John R. Schieber
  • Patent number: 4650339
    Abstract: There is described a method of preparing working strength solution in a processing apparatus which comprises adding a requisite volume of concentrated solution to a storage vessel until the liquid level on the storage vessel reaches the top of a standpipe in the storage vessel and continuing to add diluent to the storage vessel so that excess liquid in the storage vessel flows down the standpipe to a connected working vessel, stopping the flow of diluent when the volume of liquid in the working vessel reaches a predetermined volume, then commencing to pump liquid drawn in part at least from the bottom of the working vessel into the storage vessel, the excess liquid in the storage vessel flowing into the working vessel, and continuing to pump liquid from the working vessel to the storage vessel until the specific gravities of the liquid in the storage vessel and in the working vessel are the same.
    Type: Grant
    Filed: February 14, 1986
    Date of Patent: March 17, 1987
    Assignee: Ciba-Geigy AG
    Inventors: Raphael J. F. Chetcuti, John E. Melbourne
  • Patent number: 4605310
    Abstract: A size application system and method utilize a plurality of size boxes associated with one or more slashers. A number of size formulation components are mixed and heated at atmospheric pressure to produce a size formulation having a predetermined composition and temperature. The size formulation is pumped in a closed loop past each of the size boxes. The size level in each size box is sensed utilizing a radio transmitter level control in each size box, which utilizes radio waves to sense the level of size in the box. In response to the sensing of the size level by the radio transmitter level control, size formulation is withdrawn from the closed loop through controlled valves, and supplied to each size box having an amount of size therein below a predetermined desired level.
    Type: Grant
    Filed: February 8, 1985
    Date of Patent: August 12, 1986
    Assignee: Burlington Industries, Inc.
    Inventors: Frederick D. Pritchard, John E. Pittard
  • Patent number: 4605172
    Abstract: A sensory apparatus for substances containing granular particles which are to be moved or mixed in a casing includes a sensor which is supported on a wall of the casing and protrudes from the wall into the area of the moving substances. The sensor has a deflectable plate by which the sensor is connected to the surface of the wall and has on its outer side at least one measurement receiver providing signals indicating the mixing conditions.
    Type: Grant
    Filed: October 1, 1984
    Date of Patent: August 12, 1986
    Assignee: Dierks & Sohne GmbH & Co. KG
    Inventor: Dieter Ahlert
  • Patent number: 4576089
    Abstract: An automatic roux maker including a pot for heating and agitating (mixing and moving) the roux during the cooking process, in which a motor-driven agitator is included and suspended within the pot for mixing the roux during cooking and for preventing scorching of the roux. At the bottom of the centrally located agitator shaft is included, for example, two diametrically opposed, paddle arms which ride and sweep on the bottom of the pot and are pivotally connected to a slotted support which is capable of floating up-and-down with respect to the agitator shaft. The flexible sweeping of the bottom of the pot prevents any of the roux from remaining on the bottom of the pot for any significant period of time, preventing scorching of the roux.
    Type: Grant
    Filed: November 1, 1984
    Date of Patent: March 18, 1986
    Inventor: John A. Chauvin
  • Patent number: 4571092
    Abstract: A liquid mixing system is disclosed which provides a continuous and constant pressure flow rate during operation, having particular use in spray dampening operations for offset printing procedures. The mixing system includes a stacked arrangement of a batch mixer and feed tank fluidly communicating therebetween, and transfer means sequentially activated to transfer the liquids to the feed tank upon completion of mixing the liquids. The feed tank having means for discharging liquids therefrom at a constant flow and pressure. Control means sequentially operate the system for the admission and mixing of liquids in predetermined amounts to the batch mixer, for transferring the mixed liquids from the mixer to the feed tank, and for discharging the mixed liquids from the feed tank. The system is capable of repetitive mixing and transfer cycles while continuously discharging from the feed tank at a constant flow rate.
    Type: Grant
    Filed: September 6, 1984
    Date of Patent: February 18, 1986
    Assignee: Ryco Graphic Manufacturing, Inc.
    Inventor: Thomas G. Switall
  • Patent number: 4549812
    Abstract: Liquid phase counter for a partly liquid, transparent mixture. This counter comprises at least one cell containing a transparent liquid mixture, means for homogenizing a mixture, means for the optical measurement of the transparency of the mixture, means for displacing the said means parallel to the cell, means for positioning said means to the right of a cell and an electronic control and processing means determining the number of phases of a mixture as a function of the signal supplied by the optical measuring means.Application to the formation of the phase diagram of a partly liquid, transparent mixture.
    Type: Grant
    Filed: October 24, 1984
    Date of Patent: October 29, 1985
    Assignee: Centre National de la Recherche Scientifique
    Inventors: Pierre Bothorel, Roland Bernon, Guy Gabriel
  • Patent number: 4547660
    Abstract: A feed box monitoring device for counting the revolutions of an auger or the like used in mixing two or more feed ingredients in a feed box. The device alerting an operator when a uniform mix has been obtained in the feed box.
    Type: Grant
    Filed: March 7, 1983
    Date of Patent: October 15, 1985
    Inventor: Donald W. Whitson
  • Patent number: 4537512
    Abstract: An apparatus and method for carrying out the Korsakovian dilution of a master tincture contained in a bottle. The bottle is drained through a vacuum pump acting by way of a control water trap. Then the feed station sends a dose of distilled water into the bottle while the agitator processes the mixture. With each new cycle a programmed display is provided.
    Type: Grant
    Filed: September 14, 1983
    Date of Patent: August 27, 1985
    Assignee: Laboratoires Boiron
    Inventors: Jean Boiron, Christian Boiron, Jacky Abecassis, Andre-Marcel Favier
  • Patent number: 4534655
    Abstract: A device for maintaining a substantially uniform proportion between two or more liquids comprising a substantially cylindrically shaped tank and a liquid exit tube located at the bottom and approximately at the radial center of the tank. The liquid exit tube is characterized as possessing a flared top end and one or more openings at its bottom end. Means are also included within the cylindrically shaped tank for injecting two or more liquids into the tank which is connected to a pump or other means for maintaining circulation of the liquids.
    Type: Grant
    Filed: September 24, 1984
    Date of Patent: August 13, 1985
    Assignee: Komax Systems, Inc.
    Inventors: L. Tony King, Mark W. Peters