US3737073A - Apparatus for proportionally dosing a plurality of liquids - Google Patents

Apparatus for proportionally dosing a plurality of liquids Download PDF

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Publication number
US3737073A
US3737073A US00221908A US3737073DA US3737073A US 3737073 A US3737073 A US 3737073A US 00221908 A US00221908 A US 00221908A US 3737073D A US3737073D A US 3737073DA US 3737073 A US3737073 A US 3737073A
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Prior art keywords
pistons
pair
piston
valve
piston rod
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US00221908A
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English (en)
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R Lupert
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    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
    • G01F11/00—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it
    • G01F11/02—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement
    • G01F11/021—Apparatus requiring external operation adapted at each repeated and identical operation to measure and separate a predetermined volume of fluid or fluent solid material from a supply or container, without regard to weight, and to deliver it with measuring chambers which expand or contract during measurement of the piston type
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F35/00—Accessories for mixers; Auxiliary operations or auxiliary devices; Parts or details of general application
    • B01F35/80—Forming a predetermined ratio of the substances to be mixed
    • B01F35/88—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise
    • B01F35/882—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances
    • B01F35/8822—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances using measuring chambers of the piston or plunger type
    • B01F35/88222—Forming a predetermined ratio of the substances to be mixed by feeding the materials batchwise using measuring chambers, e.g. volumetric pumps, for feeding the substances using measuring chambers of the piston or plunger type without external means for driving the piston, e.g. the piston being driven by one of the components
    • G—PHYSICS
    • G11—INFORMATION STORAGE
    • G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
    • G11B3/00—Recording by mechanical cutting, deforming or pressing, e.g. of grooves or pits; Reproducing by mechanical sensing; Record carriers therefor
    • G11B3/68—Record carriers
    • G11B3/70—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers
    • G11B3/705—Record carriers characterised by the selection of material or structure; Processes or apparatus specially adapted for manufacturing record carriers characterised by the selection of the material only
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2496—Self-proportioning or correlating systems
    • Y10T137/2514—Self-proportioning flow systems
    • Y10T137/2516—Interconnected flow displacement elements

Definitions

  • ABSTRACT A proportionating dosing device has two pairs of pistons, each pair being mounted on the respective ends of a common piston rod.
  • the piston rods are parallel and are coupled for movement in opposite directions by a two-armed lever whose fulcrum may be shifted to vary the ratio of the arms and thereby of the respective strokes of the piston pairs.
  • the two cylinders receiving the pistons of each pair are connected with a common intake nipple and a common discharge nipple and controlled by pneumatically actuated valves, the pneumatic valve actuating circuits including conduits blocked and opened by the moving piston rods in proper sequence. Because of the wide available ratio of liquid discharge rates, the apparatus is suitable for metering resin compositions and curing agents for the same to an injection molding machine.
  • the invention in one of its more specific aspects, provides apparatus in which a housing defines four cylinders.
  • Four pistons respectively received in the cylinders constitute a first and a second pair of cylinders, a piston rod connecting the pistons of each pair for simultaneous movement between respective terminal positions of the pistons in the respective cylinders.
  • Each piston rod and the two pistons connected thereby constitute a piston assembly.
  • Each cylinder is provided with an intake opening and a discharge opening so positioned that one piston of each pair moves toward the openings of the associated cylinder while the other piston of the pair moves away from the openings provided for the cylinder receiving the other piston.
  • a linkage couples the piston assemblies for moving the pistons of each pair a first distance in the associated cylinders when the pistons of the other pair move a second distance.
  • Adjusting means operatively connected to the linkage permit the first distance moved by each pair when the pistons of the other pair move the second distance to be varied.
  • a control valve associated with each cylinder may be moved by a valve actuating device between a first position in which the valve opens the discharge opening and closes the intake opening and a second position in which it closes the discharge opening and opens the intake opening.
  • the actuating device is operated by pressure fluid derived from a suitable source and supplied through a supply valve which is operatively connected to one of the piston rods for supplying pressure fluid from the source to the valve actuating device and for thereby moving the control valve between its positions in response to movement of the piston rod.
  • a source of a first liquid is connected by the associated control valves with the intake openings of the two cylinders respectively receiving the pistons of the first pair, and a source of a second liquid separated from the first source is connected by the associated control valves with the intake openings of the two cylinders receiving the pistons of the second pair.
  • FIG. 1 shows a dosing device of the invention in elevational section on the line Il in FIG. 2;
  • FIG. 3 shows a cover plate of the device of FIG. 1 in front elevation
  • FIG. 4 illustrates another cover plate of the device of FIG. 1 in rear elevation, the scale of FIGS. 3 and 4 being smaller than that of FIG. 2;
  • FIG. 5 illustrates a modified embodiment of the invention in a view corresponding to that of FIG. 1;
  • FIG. 6 shows a bottom plate of the device of FIG. 5 in plan view.
  • FIG. 1 there is seen a heavy rectangular plate member 1 which provides a central housing for operating elements of a double-dosing device of the invention. These elements include two identical pistons 2, 3 attached coaxially to respective ends of a common piston rod 4. The rod 4 is formed with two circumferential grooves 5, 6 respectively adjacent the pistons 2, 3.
  • Pins 33, 34 project radially in a horizontal direction 7 from the respective axially central portions of the piston rods 4, 9 into a longitudinal slot 61 of a link 37 1 freelyfmovable in a centralcavityBS of theyhousing which is traversed by. the rods 4, 9.
  • the blind, threaded bore of the rod38 re;
  • the discs are moved by compressed air admitted to and vented from the chambers 27,28, flow of the air being controlled in the conduits 12-15 by the piston rods 4,9
  • the system of ducts for liquid and compressed air is formed partly by bores in the central housing 1 and the valve housings 16, 16', and partly by grooves in cover plates 31, 32, all grooves being located at the interfaces over a widerange by turningthe I .thexconduit12 the groove Sin the piston rod to a bore 43in the housing ljwhich leads into the groove 75 ofithecover plate 32.'Escape of air from theopen lower endof the conduit 12 isblocked by the piston rod 9i Air flows inthe jconduit 75 to the chamber 27 above the valve actuating disc and into the chamber 28 beiovv thedisc 26, thereby holding thediscs in the illusof the cover plates and the housings and being transversely sealed when the coverplates are attached to oph posite upright faces of the housings by screwsand gaskets not specifically illustrated and conventional in themselves. i
  • the plate 31 as best seen in FIGS. 2 and 3, has four grooves 51-54 in its contact 'face with the housing 1,
  • nipples 29, 30, 39, 40 respectively communicating with the four grooves.
  • the grooves 51-54 are parallel to the axes of the two piston assemv blies 2, 3, 4 and 7, 8, 9 in the assembled device.
  • the nipples 29, 39 are normally connected to respective sources 90, 91 of liquidunder pressure, as is shown in FIG. 2 only, and the nipples 30, 40 are connected to devices respectively consuming the two separately dosed liquids and discharged through thenipples 30,40.j
  • the cover plate 32 shown in FIGS. 2 and 4, carries I a nipple 71 normally connected to a compressed air line or a compressor and communicating with a short groove 72 in the contact face of the plate 32 and parallel to the axes of the piston assemblies.
  • Another parallel groove 74 in the plate 35 is connected with the nipple 71 by a bore 73 in the body 1 shown in phantom view I in FIG. 4 and not otherwise illustrated.
  • .Two grooves 75,76 in the contact face of the cover 32 have respective straight end portions parallel to the axes of the piston assemblies. The two end portions of each groove 75,76 are transversely offset from each other and connected, respectively, by a bore 75' in the body 1 and by 7 an obliquely inclined central portion of the groove 76.
  • the bore 55' is blocked by thestem 22, but the bore 55 communicates with the cylinder portion through the groove 20 in the stem 18 and an intake bore 69 in the wall of the valve hous- 5mg 16'.
  • the pressure of the admitted liquid tends to move the piston 8 away from the illustrated position.
  • the cylinder portion 59 ahead of the piston 7 is connected to the groove 24 by a discharge bore 68 in the wall of the valve housing'16 and thence to the groove 54 and the discharge nipple 30 by a bore 56 in' the valve housing 16.
  • the discharge bore 56 in the valve housing nipples 39, 40 respectively in an analogous manner.
  • Liquid admitted to thegroove 52 by the intake nipple 39 is barred from entering the cylinder portion 58 by the valve stem 17 which separates intake bores 50' and 66 in the valve housing 16 in the illustrated position of the disc 26. Liquid is free to enter the cylinder portion .57 through intake bores 50, 64 in the valve housing 16, g which are connected by the groove 23 in the valve stem 21, and tends to shift the piston assembly 2,3,4 toward the right, as viewed in FIG. 1. Liquid may be discharged from the cylinder portion 58 under the liquid pressure acting on the piston 2 through discharge bores 65,49 in the valve housing 16' which are connected by the groove 19 in the valvestem 17, the groove 51, and
  • valve 17, 26, 18 is held in the illustrated axial position in the housing 16: by the pressure of air admitted to the chamber 28 from the nipple 71 through the bore 73, the groove 74, a bore 46 connecting the groove 76 to the conduit 15, the groove 1 l in the piston rod 9, and
  • nipple 1 flows from 1 the groove'72 through bores 41, 42 in the body 1 into the topends of the conduits 12, 13.
  • the latter is a bore 47 connecting the conduit to the groove 75 having an orifice in the chamber 28 below the disc 26.
  • the groove 75 is additionally supplied with air under pressure through the conduit 12 as described above. The importance of the dual air supply to the groove, and of the dual venting paths from the groove 76 through the conduits 13, 14 will presently become apparent.
  • the portions of the chambers 27, 28 respectively below the disc 25 and above the disc 26 are vented to the atmosphere through the groove 76 as described above.
  • the liquid entering the nipples 29, 39 under pressure tends to shift the piston assembly 2, 3, 4 toward the right and the piston assembly 7, 8, 9 toward the left, the two piston assemblies being coupled by the link or lever 37 for simultaneous movement at the same rate.
  • the piston rods 4, 9 are moved until the groove 5 is aligned with the conduit 13, the groove 6 is aligned with the conduit 15, the groove 10 is aligned with the conduit 12,'and the conduit 14 with the groove 11.
  • liquid is discharged from the cylinder portion 60 to the nipple 30 through bores 70, 56' in the valve housing 16', the circumferential groove 20 in the valve stem 18, and the groove 54 in the cover plate 31.
  • Liquid is admitted to the cylinder portion 59 from the groove 53 through bores 55, 67 in the valve housing 16 and the connecting groove 24 in the valve stem 22 until the condition of FIG. 1 is restored, and a new operating cycle begins.
  • the device illustrated in FIGS. 1 to 4 thus discharges two practically continuous streams of liquid from the nipples 30, 40 at respective rates which maintain a fixed ratio as long as the knob 62" is not turned.
  • this ratio is determined uniquely by the cross sections of the pistons 2,3 and 7,8. The pistons of both pairs travel over the full, equal lengths of the respective cylinder portions.
  • the pin 36 on the bar 38 may be aligned axially with either pin 33,34 so that the rate of liquid discharge from either nipple 30, may be reduced to zero, permitting the ratio of liquid discharge to be adjusted continuously between w l and I 2 w regardless of changes in the viscosities or pressures in the liquids entering the nipples 29, 39.
  • the device illustrated in FIGS. 1 to 4 and described above has been used successfully for controlling the injection of two synthetic resin compositions into respective parts of the same mold cavity, for injecting the same resin composition into a complex mold cavity from two gates, and for injecting a resin composition and a curing agent for the same simultaneously at a fixed ratio through a common gate. Flow ratios of 1:200 and higher were achieved without difficulty.
  • more than two pairs of pistons may be coupled by the lever 37, and the lever may be replaced by a plurality of levers hingedly connected by 'pins engaging slots, each lever being provided with an adjustable fulcrum in the manner illustrated, if it is desired to vary the amount of liquid discharged by each of two or more pairs of pistons while the discharge rate from one pair is held constant so that the discharge ratio between any two pairs of pistons may be varied independently of the ratios between the other pairs.
  • the apparatus described above and illustrated in FIGS. 1 to 4 relies on the supply pressure of the liquid entering the nipples 29, 39 for controlling the pressure of the liquid discharged from the nipples 30, 40.
  • the modified apparatus includes all features of the first-described embodiment as far as not explicitly stated otherwise hereinbelow and operates in the same manner. Analogous elements are referred to in FIGS. 1 and 5 by the same reference numerals to which primes or lower case letters were added in FIG. 5 to indicate modifications.
  • the second embodiment of the invention has a central housing 1' and valve housings 16a, 16b respectively attached to the narrow upright sides of the housing 1'.
  • the major piston assembly 2', 3', 4' differs from the corresponding assembly in FIG. 1 by a third, doubleacting piston 77 mounted on the piston rod 4', and the piston rod 9 of the minor piston assembly carries a double-acting piston 78.
  • the pistons 77, 78 reciprocate in respective cylinder chambers 79,80 of the. housing 1'.
  • the cylinder portion 57 in which the piston 2' moves may be'supplied with compressed air backing the piston 2' during the discharge stroke through a duct a in the housing 1'.
  • the two compartments of the cylinder chamber 79 axially separated by the piston 77 may be supplied with compressed air through ducts c, d, and ducts b, e similarly supply the compartments of the cylinder chamber 80.
  • a duct f may supply backing air to thecylinder portion 58' which encloses the piston;3",
  • the ducts a--f mayeach be switchedfrom supplying air to the associated cavity to venting the cavity
  • the necessary connecting air conduits are largely provided by grooves 8 6 ,87,88 in the contact faceof a bottom plate 83 normally sealed to the underside of the housing 1'.
  • the groove 86 is aligned in the mounted bottom plate 83 with conduits 14', 15' which differ from the afore-described conduits 14,15 by the absence of plugs in their bottom ends.
  • the lower end portions of the conduits 14', 15' permanently communicate with the compressed air nipple through the groove 74 in the cover plate32, not itself shown in FIGS. 5 and 6.
  • the groove 86 thus is permanently'com nected with the nipple 71 and communicates with bores 86', 86': in the valve housings 16a, 1617, only the orifices of the bores in the valve housing being seen in FIG. 5.
  • valve stems 18, 22' which are the structural and functional equivalents'of the afore-described stems 18,
  • Bores 81, 82 in the housings 1', 16a, 16b connect the grooves 87, 88 with orifices in the respective bores of the valve housings 16a, 16b which are axially aligned with the grooves 90 and circumferentially offset in a common radial plane from the orificesof the bores 86', 86"..
  • valve assembly in the valve housing 16a is shown in its lowered position in which it admits liquidto the cylinder portion 57'. Its circumferential groove 89 connects the bore 86'.and thereby the compressed-air nip ple with the bore 82 and the groove 88 of the bottom plate 83.
  • the raised valve assembly in the valve housing 16b blocks the bore86" and vents the bore 81 and the connected groove 87 to the atmosphere through the axial groove 90 in the valve stem extension 85.
  • the afore-described pneumatic system which enhances the pressure of the discharged liquid communicates with the pressure fluid circuit for controlling the valves'only through the open bottom ends of the conduits 14, 15. If higher supplementary pressure is needed, the bottom ends of the conduits l4, 15'may be plugged in the manner showh'in FIG. 1, and the V groove 86 may be connected with any other desired source of fluid under pressure, such as the discharge conduit of a hydraulic pump to receive oil under high pressure or the likethrough a nipple, not illustrated,
  • pistons constituting a first pair and a second ;pair of pistons
  • V f pressure-fluid operated valve actuating means for moving each control valve between tions thereof; I 7 l g. a source ofpressure fluid; r I w h.
  • lever member is elongated and formed with at least one longitudinally elongated slot
  • each of said piston rods carries an engaging member movably received in said at least one slot for hingedly connecting said lever member to said piston rods.
  • said fulcrum includes a pin member movably received in said at least one slot, and said adjusting means include means for moving said pin member toward and away from one of said piston rods.
  • the apparatus further comprising two valve housings elongated transversely of said common direction and spaced from each other in said common direction so as to receive said housing means therebetween, each valve housing movably receiving a valve assembly including two of said control valves, said valve actuating means including two valve actuating members respectively fastened in said valve housings to said two control valves and constituting respective elements of the valve assemblies, said two control valves of each valve assembly being associated with cylinders receiving respective pistons of said first and second pairs, each of said two control valves being in said first position thereof when the other control valve is in the second position of the same.
  • said supply valve means include a conduit transverse to said one piston rod, said one piston rod having a first portion of a cross section greater than the cross section of said conduit and a second portion of a cross section smaller than the cross section of said conduit, said piston rod intersecting said conduit and sealing the same when said first portion thereof engages said conduit while permitting flow through said conduit when said second portion engages said conduit.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Physics & Mathematics (AREA)
  • Fluid Mechanics (AREA)
  • General Physics & Mathematics (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Reciprocating Pumps (AREA)
  • Accessories For Mixers (AREA)
US00221908A 1971-02-05 1972-01-31 Apparatus for proportionally dosing a plurality of liquids Expired - Lifetime US3737073A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
AT99471A AT336297B (de) 1971-02-05 1971-02-05 Vorrichtung zum mengenmassigen dosieren zweier kunststoffkomponenten

Publications (1)

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US3737073A true US3737073A (en) 1973-06-05

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US00221908A Expired - Lifetime US3737073A (en) 1971-02-05 1972-01-31 Apparatus for proportionally dosing a plurality of liquids

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US (1) US3737073A (enrdf_load_stackoverflow)
JP (1) JPS5414771B1 (enrdf_load_stackoverflow)
AT (1) AT336297B (enrdf_load_stackoverflow)
CH (1) CH537791A (enrdf_load_stackoverflow)
DE (1) DE2203983A1 (enrdf_load_stackoverflow)
FR (1) FR2124464B1 (enrdf_load_stackoverflow)
IT (1) IT972415B (enrdf_load_stackoverflow)
SE (1) SE370658B (enrdf_load_stackoverflow)

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871268A (en) * 1972-12-30 1975-03-18 Shimazaki Mixing Equipment Co Combination pumping apparatus
US4065032A (en) * 1976-10-12 1977-12-27 Simplex Filler Company Container-filling machine with fill adjustment during operation
US4189070A (en) * 1978-02-03 1980-02-19 The Regents Of The University Of Minnesota Reaction injection molding machine
US4231723A (en) * 1977-07-26 1980-11-04 Spuhl Ag Metering and conveyor arrangement
US4300352A (en) * 1979-09-10 1981-11-17 The Geolograph Company Hydraulic pressure integrator
US4317647A (en) * 1978-12-18 1982-03-02 Wilhelm Hedrich Vakuumanlagen Gmbh & Co. Kg Dosing system
US4360323A (en) * 1976-11-19 1982-11-23 Halbert Fischel Proportioning pumping system for dialysis machines
US4433798A (en) 1981-01-23 1984-02-28 Industria Macchine Automatiche Volumetric dosing apparatus for particulate matter
US4550745A (en) * 1982-01-05 1985-11-05 Burroughs Wellcome Co. Device for discharging a mixture of two liquids
US4832014A (en) * 1985-10-02 1989-05-23 Perkins Warren E Method and means for dispensing two respirating gases by effecting a known displacement
US4915264A (en) * 1988-02-05 1990-04-10 Curtis David C Portion control apparatus
US4932401A (en) * 1988-04-01 1990-06-12 Perkins Warren E Two-gas variable ratio, variable dose, metering system and method of use
US5060824A (en) * 1986-07-18 1991-10-29 The Coca-Cola Company Beverage dispenser system using volumetric ratio control device
DE19647133A1 (de) * 1996-04-18 1997-10-23 Walu Apparatetechnik Gmbh Kolbenbürette
US5688208A (en) * 1995-11-03 1997-11-18 Plemmons; David Limb exercise/therapy apparatus
US5829633A (en) * 1995-02-11 1998-11-03 Pkl Verpackungssysteme Gmbh Method and apparatus for metering liquids
WO2002030683A1 (en) * 2000-10-13 2002-04-18 Cps Color Group Oy Paint toning machine

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4002271A (en) * 1975-05-21 1977-01-11 The Willamette Valley Company Proportioning systems
AU5420090A (en) * 1989-03-31 1990-11-05 Fountain Fresh, Inc. Methods and apparatus for dispensing plural fluids in a precise proportion
US5388725A (en) * 1993-11-24 1995-02-14 Fountain Fresh International Fluid-driven apparatus for dispensing plural fluids in a precise proportion

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB807338A (en) * 1954-11-02 1959-01-14 Unilever Ltd Automatic filling devices for liquid or plastic substances
FR1296540A (fr) * 1960-07-28 1962-06-22 Compresseur perfectionné et son procédé de montage

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE836249C (de) * 1950-01-26 1952-04-10 Gewerkschaft Philippine Verfahren und Vorrichtung zum Fuellen von Formen, Hohlraeumen od. dgl. mit porenbildenden, organischen Kunststoffen
FR1409799A (fr) * 1964-07-17 1965-09-03 Flii Cassanmagnago Procédé pour effectuer le dosage des composants de vernis polyesters ou de vernis semblables destinés à être atomisés, et appareil pour régler et maintenir inaltéré ce dosage pendant l'application
FR1451761A (fr) * 1965-10-18 1966-09-02 Pasquiers & Fils S A Soc Dispositif mécanique pour assurer le dosage de résines synthétiques, à plusieurs composants variables, pour tous usages
DE1604530C3 (de) * 1966-07-09 1975-08-28 Farbspritzgeraetebau Richard Zippel & Co Kg, 3440 Eschwege Vorrichtung zum Ausstoßen einer einstellbaren, genau dosierten Menge der Komponenten eines flussigen Mehrkomponenten-Kunststoffes
GB1296354A (enrdf_load_stackoverflow) * 1968-10-25 1972-11-15

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB807338A (en) * 1954-11-02 1959-01-14 Unilever Ltd Automatic filling devices for liquid or plastic substances
FR1296540A (fr) * 1960-07-28 1962-06-22 Compresseur perfectionné et son procédé de montage

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3871268A (en) * 1972-12-30 1975-03-18 Shimazaki Mixing Equipment Co Combination pumping apparatus
US4065032A (en) * 1976-10-12 1977-12-27 Simplex Filler Company Container-filling machine with fill adjustment during operation
US4360323A (en) * 1976-11-19 1982-11-23 Halbert Fischel Proportioning pumping system for dialysis machines
US4231723A (en) * 1977-07-26 1980-11-04 Spuhl Ag Metering and conveyor arrangement
US4189070A (en) * 1978-02-03 1980-02-19 The Regents Of The University Of Minnesota Reaction injection molding machine
US4317647A (en) * 1978-12-18 1982-03-02 Wilhelm Hedrich Vakuumanlagen Gmbh & Co. Kg Dosing system
US4300352A (en) * 1979-09-10 1981-11-17 The Geolograph Company Hydraulic pressure integrator
US4433798A (en) 1981-01-23 1984-02-28 Industria Macchine Automatiche Volumetric dosing apparatus for particulate matter
US4550745A (en) * 1982-01-05 1985-11-05 Burroughs Wellcome Co. Device for discharging a mixture of two liquids
US4832014A (en) * 1985-10-02 1989-05-23 Perkins Warren E Method and means for dispensing two respirating gases by effecting a known displacement
US5060824A (en) * 1986-07-18 1991-10-29 The Coca-Cola Company Beverage dispenser system using volumetric ratio control device
US4915264A (en) * 1988-02-05 1990-04-10 Curtis David C Portion control apparatus
US4932401A (en) * 1988-04-01 1990-06-12 Perkins Warren E Two-gas variable ratio, variable dose, metering system and method of use
US5829633A (en) * 1995-02-11 1998-11-03 Pkl Verpackungssysteme Gmbh Method and apparatus for metering liquids
US5688208A (en) * 1995-11-03 1997-11-18 Plemmons; David Limb exercise/therapy apparatus
DE19647133A1 (de) * 1996-04-18 1997-10-23 Walu Apparatetechnik Gmbh Kolbenbürette
WO2002030683A1 (en) * 2000-10-13 2002-04-18 Cps Color Group Oy Paint toning machine
US20040011423A1 (en) * 2000-10-13 2004-01-22 Anssi Tammi Paint toning machine
AU2002210586B2 (en) * 2000-10-13 2005-07-21 Cps Color Group Oy Paint toning machine

Also Published As

Publication number Publication date
FR2124464A1 (enrdf_load_stackoverflow) 1972-09-22
CH537791A (de) 1973-06-15
FR2124464B1 (enrdf_load_stackoverflow) 1977-07-15
ATA99471A (de) 1976-08-15
AT336297B (de) 1977-04-25
JPS5414771B1 (enrdf_load_stackoverflow) 1979-06-09
IT972415B (it) 1974-05-20
DE2203983A1 (de) 1972-08-17
SE370658B (enrdf_load_stackoverflow) 1974-10-28

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