US3642175A - Multiple component mixers - Google Patents

Multiple component mixers Download PDF

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Publication number
US3642175A
US3642175A US863819A US3642175DA US3642175A US 3642175 A US3642175 A US 3642175A US 863819 A US863819 A US 863819A US 3642175D A US3642175D A US 3642175DA US 3642175 A US3642175 A US 3642175A
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United States
Prior art keywords
compositions
ratio
fed
correlating
pistons
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Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US863819A
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English (en)
Inventor
John E Robbins
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Emhart Industries Inc
Original Assignee
USM Corp
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Filing date
Publication date
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Publication of US3642175A publication Critical patent/US3642175A/en
Assigned to EMHART ENTERPRISES CORP. reassignment EMHART ENTERPRISES CORP. CHANGE OF NAME (SEE DOCUMENT FOR DETAILS). EFFECTIVE DATE: MAY 8, 1987 Assignors: USM CORPORATION
Assigned to EMHART INDUSTRIES, INC. reassignment EMHART INDUSTRIES, INC. MERGER (SEE DOCUMENT FOR DETAILS). Assignors: EMHART ENTERPRISES CORP., A NJ CORP.
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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    • 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

Definitions

  • Brine ABSTRACT A device for the mixing and dispensing a multiple component composition wherein variation is made to the ratio of constituent materials fed to the mixer without having a substantial effect on the total quantity of constituent composition fed to the mixer.
  • apparatus for dispensing a multiple component composition such apparatus frequently comprising a mixing chamber and means for supplying constituent compositions of the mixture to the mixing chamber wherein the constituent compositions are mixed and dispensed therefrom.
  • apparatus often is used to dispense a multiple component composition provided by two individually stable compositions which when mixed together, react chemically.
  • the illustrative apparatus is adapted for use in dispensing a multiple component composition, and will be described in its use in the mixing of polyhydroxyl and isocyanate compositions in the dispensing of a polyurethane composition.
  • the illustrative apparatus generally comprises a mixing chamber of variable volume provided by a cylinder and piston, to which is secured a piston rod, fitting snugly therein, and first and second storage devices in which first and second constituent compositions comprising, respectively, reactive hydroxyl groups and reactive isocyanate groups, are maintained under a pressure in excess of atmospheric pressure.
  • the illustrative apparatus also comprises feeding means comprising first and second feeding devices adapted to feed first and second constituent composition, respectively, from their respective storage devices to the mixing chamber, and correlating means adapted to control the operation of the feeding devices.
  • the first feeding device comprises a cylinder having a piston, to which is secured a piston rod, slidably mounted therein
  • the second feeding device comprises a piston, to which is secured a piston rod, slidably mounted therein.
  • the feeding means also comprises correlating means associated with the first and second feeding devices and movable by operating mechanism of the feeding means to cause the feeding devices to feed constituent composition from the storage devices towards the mixing chamber.
  • the correlating means comprises a correlating member provided by an elongated bar mounted on a pivot.
  • free end portions of the piston rods of the two feeding devices are bifurcated, a roller of each feeding device extending between the bifurcated portions thereof through one of two slots of the correlating member.
  • the operating mechanism comprises a cylinder having a piston, to which is secured a piston rod, slidably mounted therein, the piston rod providing an operating member of the feeding means, a free end portion of which piston rod is bifurcated, a roller extending between the bifurcated portions extending through a slot in the correlating member which slot is located between the two other said slots of the correlating member.
  • the distance between the pivotal mounting of the correlating member and the piston rod of the operating means is variable.
  • the pivot on which the correlating member is mounted is carried on a bracket slidably mounted on a support arm; by moving the bracket along the support arm, the pivot may be moved towards and away from the three piston rods, the rollers of the bifurcated end portions thereof moving within the three slots.
  • the three piston rods of the feeding means are parallel, and the piston rods of the feeding devices extend from the correlating member' in opposite directions.
  • a first supply conduit extends from the first storage device through a first one-way valve thereof to an upper portion of the cylinder of the first feeding device; extending from the supply conduit, downstream of the one-way valve through a second one-way valve to the mixing chamber is a first delivery conduit.
  • a second supply conduit extends from the second storage device through a first one-way valve thereof to a lower portion of the cylinder of the second feeding device; extending from the second supply conduit downstream of the one-way valve through a second one-way valve to the mixing chamber is a second delivery conduit.
  • the device is so constructed that the ratio of the transverse distances between the piston rod of each feeding device and the piston rod of the operating means is equal to the inverse ratio of the cross-sectional areas of the cylinders of the feeding devices.
  • variation of the ratio'by movement of the pivot does not substantially vary the said total quantity.
  • FIG. 1 is a schematic view of the illustrative apparatus showing feeding means thereof in a first condition
  • FIG. 2 is a schematic view of the illustrative apparatus of FIG. 1 showing said feeding meansin a second condition thereof.
  • the illustrative apparatus is adapted for use in dispensing a multiple component, polyurethane composition, and comprises a mixing chamber 10 of variable volume provided by a cylinder 12 and a piston 14, to which is secured a piston rod 16, fitting snugly therein.
  • a piston 18 Connected to an end portion of the piston rod 16 remote from the piston 14 is a piston 18 slidably mounted in a cylinder 20.
  • the piston 14 On admission of fluid under pressure to an inlet port 21 of the cylinder 20, the piston 14 may be moved within the cylinder 12 to decrease the volume of the mixing chamber 10, air flowing from the cylinder 20 through an exhaust port 22 thereof.
  • first and second inlet ports 24, 26 Extending into the cylinder 12 at lower portions thereof are first and second inlet ports 24, 26 respectively. Extending from the cylinder 12 at a lower portion thereof is an outlet port 28 controlled by an outlet valve (not shown), and mounted in the cylinder is a stirrer 30.
  • the illustrative apparatus also comprises first and second storage devices comprising first and second tanks 32 and 34 respectively in which first and second constituent compositions, comprising, respectively, reactive hydroxyl groups and reactive isocyanate groups, are maintained under a pressure in excess of atmospheric pressure, and feeding means comprising first and second feeding devices 36, 38 respectively adapted to feed first and second constituent composition, respectively, from their respective storage devices to the mixing chamber 10.
  • first and second storage devices comprising first and second tanks 32 and 34 respectively in which first and second constituent compositions, comprising, respectively, reactive hydroxyl groups and reactive isocyanate groups, are maintained under a pressure in excess of atmospheric pressure
  • feeding means comprising first and second feeding devices 36, 38 respectively adapted to feed first and second constituent composition, respectively, from their respective storage devices to the mixing chamber 10.
  • the first feeding device 36 comprises a cylinder 40 having a piston 42, to which is secured a piston rod 44, slidably mounted therein. Extending into an upper portion of the cylinder 40 is an inlet port 46 and extending from a lower portion of the cylinder is an exhaust port 48. A free, lower end portion of the piston rod 44 is bifurcated, a roller 50 extending between the bifurcated portions thereof.
  • the second feeding devices 38 comprises a cylinder 52 having a piston 54, to which is secured a piston rod 56, slidably mounted therein. Extending into a lower portion of the cylinder 52 is an inlet port 58 and extending from an upper portion of the cylinder is an exhaust port 60. A free, upper end portion of the piston rod 56 is bifurcated, a roller 62 extending between the bifurcated portions thereof.
  • the feeding means also comprises correlating means associated with the feeding devices 36 and 38 and operating mechanism 64 adapted to move the'feeding means between first, second and rest conditions and thereby move the correlating means to cause the feeding devices 36 and 38 to feed constituent composition from the storage devices to the mixing chamber.
  • the correlating mechanism comprises a correlating member 66, provided by an elongated bar, mounted on a pivot 68.
  • the pivot 68 is carried on a bracket 70 slidably mounted on a support arm 72.
  • the member 66 is provided with three slots 74, 76 and 78, extending lengthwise of the member and spaced at intervals from the pivot 68, respectively.
  • the operating mechanism 64 comprises-a cylinder 80 having a piston 82, to which is secured a piston rod 84, slidably mounted therein, ports 86, 88 extending into upper and lower portions of the cylinder, respectively.
  • a lower end portion of the rod 84 is bifurcated, a roller 90 extending between the bifurcated portions thereof.
  • the illustrative apparatus also comprises control mechanism comprising a microswitch 92 secured to an upper end portion of the rod 84, a first contact 94 mounted at a fixed position on a support 96 and a second contact 98 mounted at an adjustably variable position on the support 96.
  • the piston rods 44, 56 and 84 are parallel, the rollers 50, 62 and 90 thereof extending through the slots 78, 74 and 76 of the correlating member 66, respectively.
  • the piston rods 44 and 84 extend from the correlating member 66 in the same direction, the piston rod 56 extending therefrom in the opposite direction.
  • a first supply conduit 100 extends from the first storage tank 32 through a first one-way valve 102 to the inlet port 46 of the cylinder 40; extending from the supply conduit 100, downstream of the valve 102 through a second one-way valve I04 to the inlet port 24 of the cylinder 12 is a supply conduit 106.
  • a second supply conduit 108 extends from the second storage tank 34 through a first one-way valve 110 to the inlet port 58 of the cylinder 52. Extending from the supply conduit I08, downstream of the valve 110 through a second one-way valve 112 to the inlet port 26 of the cylinder 12 is a supply conduit 114.
  • the illustrative apparatus is shown with the feeding means thereof in a rest condition in broken lines in FIG. 1. in the rest condition, the mixing chamber contains a small amount of first constituent composition together with residual polyurethane composition from an immediately preceding use of the apparatus.
  • the operating mechanism moves the correlating member 66 clockwise (FIG. 1) about its pivot 68, forcing first constituent composition from the cylinder 40 through the port 46 along the conduits and 106 through the one-way valve 104 and into the mixing chamber through the port 24.
  • a proportionate quantity of second constituent composition is fed simultaneously into the cylinder 52 from the second tank, said quantity depending upon the position of the pivot 68 as located along the support arm 72.
  • the correlating member is now moved anticlockwise about the pivot 68, forcing the piston 54 downwardly to feed a proportionate quantity of second constituent composition from the cylinder 52 along the conduits 108 and 114 through the one-way valve 112 and into the mixing chamber 10 through the port 26. Simultaneously, a second quantity of first constituent composition is fed into the cylinder 40 from the first tank 32.
  • the operating mechanism On reaching the position in which it is shown in FIG. 2, in which the feeding means is in its second condition, the operating mechanism is maintained stationary while the constituent compositions are mixed within the mixing chamber 10 and discharged by the piston 14 therefrom through the port 28.
  • the operating mechanism is then caused by the control mechanism to move the correlating member 66 to its rest condition (shown in dotted lines of FIG. 2), a'small amount of first constituent composition being fed to the mixing chamber 10 to dissolve residual polyurethane composition and simultaneously a proportionate amount of second constituent composition being fed into the cylinder 52.
  • the microswitch 92 engages the contact 94 and the apparatus comes to rest.
  • the total quantity of first and second constituent composition fed to the mixing chamber 10 may be varied by movement of the contact 98 along the support 96. Such movement of the contact 98 has no effect on the ratio in which the two constituent compositions are fed to the mixing chamber 10.
  • the ratio of the transverse distances, from the connection of the piston rod 44 to the member 66 and the connection of the piston rod 84 to the member 66 (d,) to the connection of the piston rod 56 to the member 66 and from the connection of the piston rod 84 to the member 66 (d is equal to the inverse ratio of the cross-sectional areas of the cylinders 40 (A,) and 52 (A as designated in FIG. 1.
  • the total quantity of constituent compositions fed to the mixing chamber in any one operation of the illustrative apparatus is independent of the distance of the pivot 68 from the piston rods.
  • variation may be made to the ratio in which the two constituent compositions are fed to the mixing chamber (by movement of the bracket 70 on the support arm 72) without having any substantial effect to the total quantity of constituent composition fed to the mixing chamber.
  • Apparatus for use in dispensing a composition provided by the mixing together of at least two constituent c'omposi-. tions and comprising first storage means for containing a first of said contituent compositions, second storage means for containing a second of said constituent compositions, means for mixing constituent compositions, first and second cylindrical chambers of different diameters and having pistons slidable therein in one direction to feed one composition from the first storage means to the first chamber while the other composition is fed from the second chamber to the mixing device, said pistons being slidable in the opposite direction to reverse the actions of the chambers; correlating means comprising a pivoted member connected to the pistons and means connected to said member between the connections for said pistons for operating said member to operate the pistons alternately in said directions, the ratio of the distances between the respective connections for the pistons of the first and second chambers and the connection for the operating means being equal to the inverse ratio of the diameters of the respective first and second chambers, the relation of said connections to the pivot of said member being so arranged
  • Apparatus according to claim 1 including means to adjust the distance between said pivot and the connection of the operating meansfor varying the ratio of said first and second compositions fed by the pistons and maintaining constant the total quantity of the compositions fed.
  • Apparatus according to claim 2 including means to vary the extent of movement of said correlating member for varying the total quantity of the compositions fed and maintaining constant the ratio of the first and second quantities fed.
  • Apparatus for use in dispensing a composition provided by the mixing together of at least two constituent compositions and comprising first feeding means operable to feed a first of said constituent compositions and comprising a cylindrical chamber having a piston slidably disposed therein,
  • second feeding means operable to feed a second of said constituent compositions and comprising a cylindrical chamber having a piston slidably disposed therein, said cylindrical chambers being of different diameters, correlating means controlling the operation of the first and second feeding means according to an operating ratio equal to the inverse ratio of the diameters of the first and second cylinders, said correlating means being adjustable for varying the effectiveness of said operating ratio to vary the ratio of the quantities of the compositions fed and maintaining constant the total quantity of the compositions fed.
  • said correlating means comprises a pivoted member connected to the two pistons and further including operating means for moving said correlating member about its pivot and connected to said co rrelating member between said piston connections to said correlating member, the ratio of the distances between the connections of the first and second pistons and the operating means being equal to the inverse ratio of the diameters of the first and second chambers.
  • Apparatus according to claim 5 including means to adjust the distance between said pivot and the connection of the operating means for varying the ratio of the respective quantities fed by the first and second feeding means and maintaining constant the total quantity of the compositions fed.
  • Apparatus according to claim 5 including means to vary the extent of movement of the correlating member for varying the total quantity of the compositions fed and maintaining constant the ratio of the respective quantities fed by the first and second feeding means.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
  • Accessories For Mixers (AREA)
  • Reciprocating Pumps (AREA)
  • Feeding, Discharge, Calcimining, Fusing, And Gas-Generation Devices (AREA)
  • Polyurethanes Or Polyureas (AREA)
US863819A 1968-10-25 1969-10-06 Multiple component mixers Expired - Lifetime US3642175A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB5064868 1968-10-25

Publications (1)

Publication Number Publication Date
US3642175A true US3642175A (en) 1972-02-15

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Application Number Title Priority Date Filing Date
US863819A Expired - Lifetime US3642175A (en) 1968-10-25 1969-10-06 Multiple component mixers

Country Status (5)

Country Link
US (1) US3642175A (enrdf_load_stackoverflow)
JP (1) JPS4825317B1 (enrdf_load_stackoverflow)
FR (1) FR2021585A1 (enrdf_load_stackoverflow)
GB (1) GB1296354A (enrdf_load_stackoverflow)
ZA (1) ZA697481B (enrdf_load_stackoverflow)

Cited By (15)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4189070A (en) * 1978-02-03 1980-02-19 The Regents Of The University Of Minnesota Reaction injection molding machine
US4312463A (en) * 1980-02-04 1982-01-26 Daby Lance H Proportional pumping apparatus
US4317791A (en) * 1976-07-10 1982-03-02 Bayer Aktiengesellschaft Process for the production of non-cellular molded articles
US4509903A (en) * 1983-10-18 1985-04-09 Fram Jerry R Catalyst slave pump
US4621747A (en) * 1983-07-01 1986-11-11 Tebel Machinefabrieken B.V. Apparatus for charge-wise dosing a metered volume quantity of a flowing medium continuously supplied to the apparatus under delivery pressure
US4689204A (en) * 1985-03-08 1987-08-25 Cambridge Bioscience Corporation Multiple step reagent delivery system
US4795336A (en) * 1988-01-22 1989-01-03 The Dow Chemical Company Laboratory scale reaction injection molding
US4828148A (en) * 1987-01-28 1989-05-09 Lily Corporation Fluid mixing dispenser
US5139170A (en) * 1990-09-06 1992-08-18 Ad-Tech Plastic Systems Corp. Dispensing apparatus for multiple fluids
US5158438A (en) * 1991-08-02 1992-10-27 Graco Inc. Quick mount pump frame
US5285932A (en) * 1991-11-15 1994-02-15 Boudreau Ronald A Apparatus for delivering fluids in proportional quantities
US20060278658A1 (en) * 2005-06-13 2006-12-14 George Nisbet Method and apparatus for metering a fluid mixture
US20130075421A1 (en) * 2011-06-03 2013-03-28 Antony James Holliday Fuel dispenser
RU2602471C2 (ru) * 2014-12-05 2016-11-20 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) Пневматический насос судовой системы пожаротушения
US10670002B2 (en) * 2014-12-17 2020-06-02 Graco Minnesota Inc. Plural component proportioner comprising a first pump and a second pump simultaneously driven by a motor connected to the pumps by a yoke assembly comprising a shoe, a tie plate including a slot, and a tie rod

Families Citing this family (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
AT336297B (de) * 1971-02-05 1977-04-25 Lupert Rosemarie Vorrichtung zum mengenmassigen dosieren zweier kunststoffkomponenten
JPS5054923A (enrdf_load_stackoverflow) * 1973-09-14 1975-05-14
GB2147056B (en) * 1983-09-21 1986-11-12 Loheat Ltd Liquid proportioning devices
CN112607688B (zh) * 2020-12-15 2022-06-21 浙江绿岛科技有限公司 全自动一体式静态混合灌装机
CN113813872A (zh) * 2021-08-27 2021-12-21 佛山市特赛化工设备有限公司 一种比例可调供料装置及混合机

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US595942A (en) * 1897-12-21 Apparatus for mixing liquids
US2536400A (en) * 1946-10-30 1951-01-02 Automatic Canteen Co Apparatus for treating and dispensing liquids
US2734667A (en) * 1956-02-14 Grout pump
US3071293A (en) * 1959-05-15 1963-01-01 Baker Perkins Ltd Blending and dispensing of viscous substances
US3097764A (en) * 1960-02-09 1963-07-16 Union Carbide Corp Proportioning system
US3123342A (en) * 1964-03-03 Plastic mixing apparatus
US3409174A (en) * 1966-09-01 1968-11-05 United Shoe Machinery Corp Urethane mixers and dispensers

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US595942A (en) * 1897-12-21 Apparatus for mixing liquids
US2734667A (en) * 1956-02-14 Grout pump
US3123342A (en) * 1964-03-03 Plastic mixing apparatus
US2536400A (en) * 1946-10-30 1951-01-02 Automatic Canteen Co Apparatus for treating and dispensing liquids
US3071293A (en) * 1959-05-15 1963-01-01 Baker Perkins Ltd Blending and dispensing of viscous substances
US3097764A (en) * 1960-02-09 1963-07-16 Union Carbide Corp Proportioning system
US3409174A (en) * 1966-09-01 1968-11-05 United Shoe Machinery Corp Urethane mixers and dispensers

Cited By (17)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4317791A (en) * 1976-07-10 1982-03-02 Bayer Aktiengesellschaft Process for the production of non-cellular molded articles
US4189070A (en) * 1978-02-03 1980-02-19 The Regents Of The University Of Minnesota Reaction injection molding machine
US4312463A (en) * 1980-02-04 1982-01-26 Daby Lance H Proportional pumping apparatus
US4621747A (en) * 1983-07-01 1986-11-11 Tebel Machinefabrieken B.V. Apparatus for charge-wise dosing a metered volume quantity of a flowing medium continuously supplied to the apparatus under delivery pressure
US4509903A (en) * 1983-10-18 1985-04-09 Fram Jerry R Catalyst slave pump
US4689204A (en) * 1985-03-08 1987-08-25 Cambridge Bioscience Corporation Multiple step reagent delivery system
US4828148A (en) * 1987-01-28 1989-05-09 Lily Corporation Fluid mixing dispenser
US4795336A (en) * 1988-01-22 1989-01-03 The Dow Chemical Company Laboratory scale reaction injection molding
US5139170A (en) * 1990-09-06 1992-08-18 Ad-Tech Plastic Systems Corp. Dispensing apparatus for multiple fluids
US5158438A (en) * 1991-08-02 1992-10-27 Graco Inc. Quick mount pump frame
US5285932A (en) * 1991-11-15 1994-02-15 Boudreau Ronald A Apparatus for delivering fluids in proportional quantities
US20060278658A1 (en) * 2005-06-13 2006-12-14 George Nisbet Method and apparatus for metering a fluid mixture
US7562792B2 (en) * 2005-06-13 2009-07-21 George Nisbet Method and apparatus for metering a fluid mixture
US20130075421A1 (en) * 2011-06-03 2013-03-28 Antony James Holliday Fuel dispenser
US8931666B2 (en) * 2011-06-03 2015-01-13 Cordex Instruments Limited Fuel dispenser
RU2602471C2 (ru) * 2014-12-05 2016-11-20 Российская Федерация, от имени которой выступает Министерство промышленности и торговли Российской Федерации (Минпромторг России) Пневматический насос судовой системы пожаротушения
US10670002B2 (en) * 2014-12-17 2020-06-02 Graco Minnesota Inc. Plural component proportioner comprising a first pump and a second pump simultaneously driven by a motor connected to the pumps by a yoke assembly comprising a shoe, a tie plate including a slot, and a tie rod

Also Published As

Publication number Publication date
JPS4825317B1 (enrdf_load_stackoverflow) 1973-07-27
ZA697481B (en) 1971-04-28
FR2021585A1 (enrdf_load_stackoverflow) 1970-07-24
GB1296354A (enrdf_load_stackoverflow) 1972-11-15

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Legal Events

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AS Assignment

Owner name: EMHART INDUSTRIES, INC.,CONNECTICUT

Free format text: MERGER;ASSIGNOR:EMHART ENTERPRISES CORP., A NJ CORP.;REEL/FRAME:004870/0112

Effective date: 19871216

Owner name: EMHART ENTERPRISES CORP.

Free format text: CHANGE OF NAME;ASSIGNOR:USM CORPORATION;REEL/FRAME:004876/0901

Effective date: 19871104

Owner name: EMHART INDUSTRIES, INC., A CONNECTICUT STOCK CORP.

Free format text: MERGER;ASSIGNOR:EMHART ENTERPRISES CORP., A NJ CORP.;REEL/FRAME:004870/0112

Effective date: 19871216