US3700215A - Mixing and dispensing device - Google Patents

Mixing and dispensing device Download PDF

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US3700215A
US3700215A US82753A US3700215DA US3700215A US 3700215 A US3700215 A US 3700215A US 82753 A US82753 A US 82753A US 3700215D A US3700215D A US 3700215DA US 3700215 A US3700215 A US 3700215A
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barrel
substances
tube
barrels
mixing
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US82753A
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Kenneth V Hardman
Alfred J Anderson
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Hardman Inc
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Hardman Inc
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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
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/451—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by means for moving the materials to be mixed or the mixture
    • B01F25/4512—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by means for moving the materials to be mixed or the mixture with reciprocating pistons
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F25/00—Flow mixers; Mixers for falling materials, e.g. solid particles
    • B01F25/40—Static mixers
    • B01F25/45—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads
    • B01F25/452—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces
    • B01F25/4521—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube
    • B01F25/45211—Mixers in which the materials to be mixed are pressed together through orifices or interstitial spaces, e.g. between beads characterised by elements provided with orifices or interstitial spaces the components being pressed through orifices in elements, e.g. flat plates or cylinders, which obstruct the whole diameter of the tube the elements being cylinders or cones which obstruct the whole diameter of the tube, the flow changing from axial in radial and again in axial
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/44—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement
    • B01F31/441—Mixers with shaking, oscillating, or vibrating mechanisms with stirrers performing an oscillatory, vibratory or shaking movement performing a rectilinear reciprocating movement
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F33/00—Other mixers; Mixing plants; Combinations of mixers
    • B01F33/50—Movable or transportable mixing devices or plants
    • B01F33/501—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use
    • B01F33/5011—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held
    • B01F33/50112—Movable mixing devices, i.e. readily shifted or displaced from one place to another, e.g. portable during use portable during use, e.g. hand-held of the syringe or cartridge 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
    • B01F35/71—Feed mechanisms
    • B01F35/712—Feed mechanisms for feeding fluids
    • 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
    • B01F35/71—Feed mechanisms
    • B01F35/716—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components
    • B01F35/7161—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components the containers being connected coaxially before contacting the contents
    • 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
    • B01F35/71—Feed mechanisms
    • B01F35/716—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components
    • B01F35/7163—Feed mechanisms characterised by the relative arrangement of the containers for feeding or mixing the components the containers being connected in a mouth-to-mouth, end-to-end disposition, i.e. the openings are juxtaposed before contacting the contents
    • 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
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7174—Feed mechanisms characterised by the means for feeding the components to the mixer using pistons, plungers or syringes
    • 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
    • B01F35/71—Feed mechanisms
    • B01F35/717—Feed mechanisms characterised by the means for feeding the components to the mixer
    • B01F35/7179—Feed mechanisms characterised by the means for feeding the components to the mixer using sprayers, nozzles or jets
    • 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
    • B01F35/30—Driving arrangements; Transmissions; Couplings; Brakes
    • B01F35/32—Driving arrangements
    • B01F35/32005—Type of drive
    • B01F35/3202—Hand driven

Definitions

  • Each of two syringes comprises a barrel having a plunger therein and an outlet nozzle separably connected to the outlet nozzle of the other barrel in axial alinement therewith, and there is a perforated mixing tube slidable through said nozzles with each of its ends in abutting relation to one of said plungers so that fluent substances may be placed in either or both of said barrels, for example, one component of a two "part reactive resin system can be placed in each of said barrels, and pumped repeatedly from each barrel into the other barrel through said perforated tube to thoroughly and rapidly mix said substances.
  • the Prior Art shows the connection of the outlets of two fluent substance containers, for example, syringe barrels or collapsible tubes, and the pumping or pressing of the fluent substances repeatedly from one container into the other container to mix the substances.
  • a primary object of the present invention is to provide a simple and inexpensive mixing and dispensing device which will overcome the difficulties and disadvantages incident to the construction and use of the prior art devices and which at the same time will provide for rapid and thorough mixing of fluent substances, particularly liquid or semi-liquid materials, in dissimilar quantities and of different viscosities.
  • the invention also contemplates such a device which will also serve as a package or storage unit for the substances until mixture thereof is required for use.
  • the invention provides two syringes each of which comprises a barrel, a plunger therein and an outlet nozzle separably, connected to the outlet nozzle of the other barrel and in axial alinement therewith, and a perforated tube slidable through said connected nozzles and interposed between said plungers as to agitate and mix the substances as they are pumped through said tube repeatedly from one barrel into the other barrel upon reciprocation of said plungers in the respective barrels to thereby produce rapidly a thorough mixture which upon separation of the nozzles can be dispensed from one or the other or both of the barrels.
  • FIG. 1 is a side elevation of a mixing and dispensing device embodying the invention
  • FIG. 2 is an enlarged central longitudinal sectional view through the syringe barrels and the perforated tube, showing the plungers in side elevation and in positions assumed when there is a fluent substance in each barrel preliminary the mixing operation, the substances being omitted for clearness in illustration;
  • FIG. 3 is a similar view showing the substances pumped into one barrel during the mixing operation
  • FIG. 4 is a greatly enlarged transversesectional view on the plane of the line 44 of FIG. 1;
  • FIG. 5 is a composite side elevation of the several parts of the device in disassembled relation
  • FIG. 6 is a fragmentary sectional view showing another form of separable connection of the nozzles.
  • the reference characters A and B designate two syringes of generally known type which comprise the respective barrels 1 and 2 having the respective outlet nozzles 3 and 4 at their outlet ends and having openings at their other ends through which the respective plungers 5 and 6 are slidably inserted into the barrels.
  • the nozzles have outlet passages of the same diameter and are adapted to be separably connected together with said passages in axial alinement with each other and with the barrels.
  • nozzles are shown as exteriorly screwthreaded and as connected together by a coupling sleeve C which has internal screw threads to mate with the threads on the nozzles
  • other types of connections can be used; for example, as shown in FIG. 6, the nozzles 13 and 14 couldbe formed with internal and external screw threads 15 and 16 respectively, for direct connection of the nozzles.
  • the barrels and the plungers may be formed of suitable material, for example, metal or glass but are shown as constructed of polymeric plastic material, and the inner ends of the plungers comprise pistons 7 formed of resilient material and having circumferential rings 8 to provide a sliding press-fit with the interior of the barrels so that upon reciprocation of the plungers fluent substances, particularly liquid or semi-liquid materials can be sucked into and pushed out of the barrels upon reciprocation of the plungers.
  • Suitable stops, such as beads 17, may be provided on the inner sides of the barrel walls for abutment by the pistons to limitthe out ward movement of the plungers, but to permit the resilient pistons to be forced over the stops into the barrels.
  • the mixing operation shall be rapid especially, for example, when the substances are the components of fast setting resin systems; and thorough mixing is not only desirable but is absolutely essential in many cases.
  • the mixing device must be capable of mixing different fluent substances in dissimilar quantities or proportions and of different viscosities, even substances of a soft pasty nature.
  • the invention achieves all of these desirable results by the provision of a mixing tube 10 which has a slide fit in the passage 9 through the nozzle with one end in communication with each barrel and adapted to be abutted and pushed by the corresponding plunger upon movement of the plunger in one direction and to simultaneously push the other plunger, or the second-mentioned plunger may be pulled if desired.
  • the tube is I constructed so that alternately the substance from one barrel is forced into the tube and through the tube into the other barrel with a turbulent action which produces a rapid and thorough mixing operation.
  • the tube has a plurality of perforations or holes 12 in its wall spaced apart both longitudinally and circumferentially of the tube.
  • the size of the barrels and tube may be varied for different quantities of substances, and the size, shape and spacing of the perforations may be varied, depending upon the size of the barrels, the size of the tube and the nature of the substances to be mixed. For example, substances of high viscosity generally require larger holes than do liquids of low viscosity.
  • the changes in direction of flow of the substances from the barrels into the tube and out of the tube into the barrels provide a turbulent action and the tube provides for distribution of the contents of each syringe throughout the length of the other syringe, so as to ensure a thorough mixing of the substances simply, easily and rapidly.
  • the syringes may be loaded easily and quickly. For example one substance can be sucked by the plunger into one syringe barrel, and the barrel may be held with the nozzle upright while the tube is inserted, whereupon the coupling sleeve may be screwed on the nozzle. Then if it is desirable to store the substances for sub sequent mixing, a separating agent, such as glycerine may be dropped into the tube, after which the other syringe barrel loaded with the other substance may have its nozzle slipped over the tube and screwed into the coupling sleeve.
  • a separating agent such as glycerine
  • the barrels may be separated and the substance may be dispensed from whichever barrel contains it.
  • a mixing and dispensing device comprising two syringes each including a barrel having a plunger therein andan outlet nozzle separably connected to the outlet nozzle of the other barrel in axial alinement therewith, and a mixing member having a slide fit in said nozzles with one end associated with each plunger and providing for sliding of the mixing member and pumping of fluent substances in said barrels from one barrel into the. other barrel simultaneously at a plurality of points along the lengths of the barrels repeatedly upon alternate reciprocation of said plungers, thereby to rapidly and thoroughly mix said substances, said mixing member being a tube having perforations in its wall through which said substances are forced as the substances are pumped from one barrel into the other barrel.
  • a mixing and dispensing device as defined in claim 1 wherein said perforations are spaced apart longitudinally and circumferentially of the tube and the ends of the tube are occluded by the respective plungers during the reciprocationof the plungers so that said fluent substances are forced from one barrel into the perforations in the corresponding portions of the tube and then out of the perforations in the portions of the tube in the other barrel during the reciprocation of the plungers.

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  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Dispersion Chemistry (AREA)
  • Infusion, Injection, And Reservoir Apparatuses (AREA)
  • Coating Apparatus (AREA)

Abstract

Each of two syringes comprises a barrel having a plunger therein and an outlet nozzle separably connected to the outlet nozzle of the other barrel in axial alinement therewith, and there is a perforated mixing tube slidable through said nozzles with each of its ends in abutting relation to one of said plungers so that fluent substances may be placed in either or both of said barrels, for example, one component of a two part reactive resin system can be placed in each of said barrels, and pumped repeatedly from each barrel into the other barrel through said perforated tube to thoroughly and rapidly mix said substances.

Description

United States Patent Hardman et al.
[451 Oct. 24, 1972 MIXING AND DISPENSING DEVICE Inventors: Kenneth V. Hardman, Upper Montclair; Alfred J. Anderson, Livingston, both of NJ.
Hardman Incorporated, Belleville, NJ.
Filed: Oct. 21, 1970 App]. No.: 82,753
Assignee:
US. Cl ..259/98, 259/D1G. 30 Int. Cl. ..B0lf 5/12 Field of Search....259/98, 71, DIG. 30; 222/190,
References Cited UNITED STATES PATENTS Lockhart ..259/95 X l-lain ..259/4 Trumbull ..259/98 X Hein ..128/218P 3,010,705 11/1961 Brown ..259/98 FOREIGN PATENTS OR APPLICATIONS 594,106 3/1959 Italy ..259/98 Primary Examiner-Walter A. Scheel Assistant Examiner-Alan 1. Cantor Attorney-Harry B. Rook [57] ABSTRACT Each of two syringes comprises a barrel having a plunger therein and an outlet nozzle separably connected to the outlet nozzle of the other barrel in axial alinement therewith, and there is a perforated mixing tube slidable through said nozzles with each of its ends in abutting relation to one of said plungers so that fluent substances may be placed in either or both of said barrels, for example, one component of a two "part reactive resin system can be placed in each of said barrels, and pumped repeatedly from each barrel into the other barrel through said perforated tube to thoroughly and rapidly mix said substances.
2 Claims, 6 Drawing Figures PATENTEU B 24 I972 N N$ v v ATTORNEY MIXING AND DISPENSING DEVICE BACKGROUND OF THE INVENTION 1. Field of the Invention This invention relates to a device for mixing fluent substances and dispensing the mixture.
2. The Prior Art The prior art shows the connection of the outlets of two fluent substance containers, for example, syringe barrels or collapsible tubes, and the pumping or pressing of the fluent substances repeatedly from one container into the other container to mix the substances.
However, these prior art devices leave much to be desired in that either they do not thoroughly mix the substances, especially substances of high viscosity, or the mixingoperation is too slow, or the devices are too costly, or excessive care or special skill is required for operation.
Another deficiency of known prior art devices is that they do not mix fast setting materials quickly enough to get them properly mixed and out of the syringes.
SUMMARY OF THE INVENTION A primary object of the present invention is to provide a simple and inexpensive mixing and dispensing device which will overcome the difficulties and disadvantages incident to the construction and use of the prior art devices and which at the same time will provide for rapid and thorough mixing of fluent substances, particularly liquid or semi-liquid materials, in dissimilar quantities and of different viscosities.
The invention also contemplates such a device which will also serve as a package or storage unit for the substances until mixture thereof is required for use.
More particularly, the invention provides two syringes each of which comprises a barrel, a plunger therein and an outlet nozzle separably, connected to the outlet nozzle of the other barrel and in axial alinement therewith, and a perforated tube slidable through said connected nozzles and interposed between said plungers as to agitate and mix the substances as they are pumped through said tube repeatedly from one barrel into the other barrel upon reciprocation of said plungers in the respective barrels to thereby produce rapidly a thorough mixture which upon separation of the nozzles can be dispensed from one or the other or both of the barrels.
A BRIEF DESCRIPTION OF THE DRAWINGS For a complete understanding of the invention, reference should be had to the following description in conjunction with the accompanying drawings in which:
FIG. 1 is a side elevation of a mixing and dispensing device embodying the invention;
FIG. 2 is an enlarged central longitudinal sectional view through the syringe barrels and the perforated tube, showing the plungers in side elevation and in positions assumed when there is a fluent substance in each barrel preliminary the mixing operation, the substances being omitted for clearness in illustration;
FIG. 3 is a similar view showing the substances pumped into one barrel during the mixing operation;
FIG. 4 is a greatly enlarged transversesectional view on the plane of the line 44 of FIG. 1;
FIG. 5 is a composite side elevation of the several parts of the device in disassembled relation, and
FIG. 6 is a fragmentary sectional view showing another form of separable connection of the nozzles.
DESCRIPTION OF THE PREFERRED EMBODIMENTS Specifically describing the invention, the reference characters A and B designate two syringes of generally known type which comprise the respective barrels 1 and 2 having the respective outlet nozzles 3 and 4 at their outlet ends and having openings at their other ends through which the respective plungers 5 and 6 are slidably inserted into the barrels. The nozzles have outlet passages of the same diameter and are adapted to be separably connected together with said passages in axial alinement with each other and with the barrels. While the' nozzles are shown as exteriorly screwthreaded and as connected together by a coupling sleeve C which has internal screw threads to mate with the threads on the nozzles, other types of connections can be used; for example, as shown in FIG. 6, the nozzles 13 and 14 couldbe formed with internal and external screw threads 15 and 16 respectively, for direct connection of the nozzles.
The barrels and the plungers may be formed of suitable material, for example, metal or glass but are shown as constructed of polymeric plastic material, and the inner ends of the plungers comprise pistons 7 formed of resilient material and having circumferential rings 8 to provide a sliding press-fit with the interior of the barrels so that upon reciprocation of the plungers fluent substances, particularly liquid or semi-liquid materials can be sucked into and pushed out of the barrels upon reciprocation of the plungers. Suitable stops, such as beads 17, may be provided on the inner sides of the barrel walls for abutment by the pistons to limitthe out ward movement of the plungers, but to permit the resilient pistons to be forced over the stops into the barrels.
When the barrels are connected together by the coupling sleeve a passage 9 is provided between the barrels through the nozzles andthe sleeve, and upon al temate reciprocation of the plungers, fluentsubstances in the barrels will be pumped repeatedly from one bar.-
rel into the other barrel so that said substances become mixed together.
It is desirable that the mixing operation shall be rapid especially, for example, when the substances are the components of fast setting resin systems; and thorough mixing is not only desirable but is absolutely essential in many cases. To be entirely satisfactory, the mixing device must be capable of mixing different fluent substances in dissimilar quantities or proportions and of different viscosities, even substances of a soft pasty nature.
The invention achieves all of these desirable results by the provision of a mixing tube 10 which has a slide fit in the passage 9 through the nozzle with one end in communication with each barrel and adapted to be abutted and pushed by the corresponding plunger upon movement of the plunger in one direction and to simultaneously push the other plunger, or the second-mentioned plunger may be pulled if desired. The tube is I constructed so that alternately the substance from one barrel is forced into the tube and through the tube into the other barrel with a turbulent action which produces a rapid and thorough mixing operation.
Preferably the tube has a plurality of perforations or holes 12 in its wall spaced apart both longitudinally and circumferentially of the tube. The size of the barrels and tube may be varied for different quantities of substances, and the size, shape and spacing of the perforations may be varied, depending upon the size of the barrels, the size of the tube and the nature of the substances to be mixed. For example, substances of high viscosity generally require larger holes than do liquids of low viscosity. The changes in direction of flow of the substances from the barrels into the tube and out of the tube into the barrels provide a turbulent action and the tube provides for distribution of the contents of each syringe throughout the length of the other syringe, so as to ensure a thorough mixing of the substances simply, easily and rapidly.
The syringes may be loaded easily and quickly. For example one substance can be sucked by the plunger into one syringe barrel, and the barrel may be held with the nozzle upright while the tube is inserted, whereupon the coupling sleeve may be screwed on the nozzle. Then if it is desirable to store the substances for sub sequent mixing, a separating agent, such as glycerine may be dropped into the tube, after which the other syringe barrel loaded with the other substance may have its nozzle slipped over the tube and screwed into the coupling sleeve.
After the mixing operation the barrels may be separated and the substance may be dispensed from whichever barrel contains it.
I claim:
1. A mixing and dispensing device comprising two syringes each including a barrel having a plunger therein andan outlet nozzle separably connected to the outlet nozzle of the other barrel in axial alinement therewith, and a mixing member having a slide fit in said nozzles with one end associated with each plunger and providing for sliding of the mixing member and pumping of fluent substances in said barrels from one barrel into the. other barrel simultaneously at a plurality of points along the lengths of the barrels repeatedly upon alternate reciprocation of said plungers, thereby to rapidly and thoroughly mix said substances, said mixing member being a tube having perforations in its wall through which said substances are forced as the substances are pumped from one barrel into the other barrel.
2. A mixing and dispensing device as defined in claim 1 wherein said perforations are spaced apart longitudinally and circumferentially of the tube and the ends of the tube are occluded by the respective plungers during the reciprocationof the plungers so that said fluent substances are forced from one barrel into the perforations in the corresponding portions of the tube and then out of the perforations in the portions of the tube in the other barrel during the reciprocation of the plungers.

Claims (2)

1. A mixing and dispensing device comprising two syringes each including a barrel having a plunger therein and an outlet nozzle separably connected to the outlet nozzle of the other barrel in axial alinement therewith, and a mixing member having a slide fit in said nozzles with one end associated with each plunger and providing for sliding of the mixing member and pumping of fluent substances in said barrels from one barrel into the other barrel simultaneously at a plurality of points along the lengths of the barrels repeatedly upon alternate reciprocation of said plungers, thereby to rapidly and thoroughly mix said substances, said mixing member being a tube having perforations in its wall through which said substances are forced as the substances are pumped from one barrel into the other barrel.
2. A mixing and dispensing device as defined in claim 1 wherein said perforations are spaced apart longitudinally and circumferentially of the tube and the ends of the tube are occluded by the respective plungers during the reciprocation of the plungers so that said fluent substances are forced from one barrel into the perforations in the corresponding portions of the tube and then out of the perforations in the portions of the tube in the other barrel during the reciprocation of the plungers.
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Cited By (64)

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US3945617A (en) * 1974-01-14 1976-03-23 Callery Thomas R Mixing method and means
US4350650A (en) * 1979-01-09 1982-09-21 Euro-Linea S.N.C. Di Colombo & C. Method for admixing at least two liquids and feeding them to a shaping mould
US4463875A (en) * 1982-06-14 1984-08-07 Robert W. Mann Method and apparatus for preparing and applying a two-component cement
US4469153A (en) * 1981-05-15 1984-09-04 Kidde, Inc. Apparatus for mixing and dispensing liquids
US5015101A (en) * 1986-03-21 1991-05-14 Klaus Draenert Apparatus and process for mixing and filling
US5425580A (en) * 1990-12-28 1995-06-20 Byk Gulden Lomberg Chemische Fabrik Gmbh Dosage form for micro-bubble echo contrast agents
WO1996007472A1 (en) * 1994-09-02 1996-03-14 Howmedica Inc. Bone cement mixer
US5702182A (en) * 1996-07-24 1997-12-30 Instrumentation Technology Associates, Inc. Apparatus for mixing selected volumes of liquids
US5823671A (en) * 1994-05-10 1998-10-20 Collagen Corporation Apparatus and method of mixing materials in a sterile environment
WO1998057734A1 (en) * 1997-06-16 1998-12-23 Fusion Medical Technologies, Inc. Method and apparatus for dispersing fluid into a material
US5908054A (en) * 1997-06-16 1999-06-01 Fusion Medical Technologies, Inc. Fluid dispersion and delivery assembly and method
US5951160A (en) * 1997-11-20 1999-09-14 Biomet, Inc. Method and apparatus for packaging, mixing and delivering bone cement
US6062722A (en) * 1997-10-21 2000-05-16 Micron Communications, Inc. Fluid mixing and withdrawing methods
US6079866A (en) * 1998-02-19 2000-06-27 General Electric Company Mixing apparatus for mixing thermosetting and thermoplastic resin blends prior to molding
US6495164B1 (en) * 2000-05-25 2002-12-17 Alkermes Controlled Therapeutics, Inc. I Preparation of injectable suspensions having improved injectability
US6592251B2 (en) 2001-01-26 2003-07-15 Howmedica Osteonics Corp. Cement mixing and dispensing device
US20030195489A1 (en) * 1999-09-24 2003-10-16 Atrix Laboratories, Inc. Coupling syringe system and methods for obtaining a mixed composition
WO2003090683A2 (en) * 2002-04-26 2003-11-06 Surgical Sealants, Inc. Mixing device for surgical sealants, and method thereof
US6685923B2 (en) 2001-01-25 2004-02-03 Dentsply Research & Development Corp. Tooth whitening material and method of whitening teeth
US6685922B2 (en) 2000-03-23 2004-02-03 Dentsply International Inc. Tooth whitening material and method of whitening teeth
US20040048227A1 (en) * 2000-12-29 2004-03-11 Izidor Brajnovic Method and device for a dental unit or unit intended for the human body
US20050037978A1 (en) * 2000-12-22 2005-02-17 Zimmer Orthobiologics, Inc. Implantable osteogenic material
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US20080212399A1 (en) * 2005-05-24 2008-09-04 Mihra Pharmaceuticals Double-Chamber Mixing Device For Viscous Pharmaceutical Substances
US20100260004A1 (en) * 2007-11-08 2010-10-14 Yiping Wang Device and system for mixing and dispensing components stored separately from one another
US20110176382A1 (en) * 2010-01-15 2011-07-21 Spine Wave, Inc. Systems and Methods for Mixing Fluids
US8226598B2 (en) 1999-09-24 2012-07-24 Tolmar Therapeutics, Inc. Coupling syringe system and methods for obtaining a mixed composition
US20180055739A1 (en) * 2015-07-14 2018-03-01 Neomed, Inc. Dosing control coupling for enteral fluid transfer and enteral couplings and syringes
US10166343B1 (en) 2015-03-13 2019-01-01 Timothy Brandon Hunt Noise evident tamper cap
US10166347B1 (en) 2014-07-18 2019-01-01 Patrick Vitello Closure assembly for a medical device
US10183129B1 (en) 2010-12-03 2019-01-22 Medical Device Engineering, Llc Tamper indicating closure assembly
US10207099B1 (en) 2014-02-21 2019-02-19 Patrick Vitello Closure assembly for medical fitting
US10300263B1 (en) 2015-02-27 2019-05-28 Timothy Brandon Hunt Closure assembly for a medical connector
US10307548B1 (en) 2016-12-14 2019-06-04 Timothy Brandon Hunt Tracking system and method for medical devices
US10315024B1 (en) 2015-03-19 2019-06-11 Patick Vitello Torque limiting closure assembly
US20200121865A1 (en) * 2018-10-23 2020-04-23 Dravid Koura Fluid-Delivery System, Device, and Adapter for Delivering Fluid to Tissue
US10758684B1 (en) 2017-03-03 2020-09-01 Jonathan J. Vitello Tamper evident assembly
USD903865S1 (en) 2018-11-19 2020-12-01 International Medical Industries, Inc. Self-righting tip cap
US20200405364A1 (en) * 2014-11-14 2020-12-31 Warsaw Orthopedic, Inc. Hydratable bone material and methods of use
US10888672B1 (en) 2017-04-06 2021-01-12 International Medical Industries, Inc. Tamper evident closure assembly for a medical device
US10898659B1 (en) 2017-05-19 2021-01-26 International Medical Industries Inc. System for handling and dispensing a plurality of products
US10912898B1 (en) 2014-02-03 2021-02-09 Medical Device Engineering Llc Tamper evident cap for medical fitting
US10933202B1 (en) 2017-05-19 2021-03-02 International Medical Industries Inc. Indicator member of low strength resistance for a tamper evident closure
US10953162B1 (en) 2016-12-28 2021-03-23 Timothy Brandon Hunt Tamper evident closure assembly
US11040149B1 (en) 2017-03-30 2021-06-22 International Medical Industries Tamper evident closure assembly for a medical device
US11097071B1 (en) 2016-12-14 2021-08-24 International Medical Industries Inc. Tamper evident assembly
US11278681B1 (en) 2018-02-20 2022-03-22 Robert Banik Tamper evident adaptor closure
USD948713S1 (en) 2019-09-03 2022-04-12 International Medical Industries, Inc. Asymmetrical self righting tip cap
US11357588B1 (en) 2019-11-25 2022-06-14 Patrick Vitello Needle packaging and disposal assembly
US11413406B1 (en) 2018-03-05 2022-08-16 Jonathan J. Vitello Tamper evident assembly
US11426328B1 (en) 2018-08-31 2022-08-30 Alexander Ollmann Closure for a medical container
US11471610B1 (en) 2018-10-18 2022-10-18 Robert Banik Asymmetrical closure for a medical device
US11523970B1 (en) 2020-08-28 2022-12-13 Jonathan Vitello Tamper evident shield
US11541180B1 (en) 2017-12-21 2023-01-03 Patrick Vitello Closure assembly having a snap-fit construction
US11690994B1 (en) 2018-07-13 2023-07-04 Robert Banik Modular medical connector
US11697527B1 (en) 2019-09-11 2023-07-11 Logan Hendren Tamper evident closure assembly
US11779520B1 (en) 2018-07-02 2023-10-10 Patrick Vitello Closure for a medical dispenser including a one-piece tip cap
US11793987B1 (en) 2018-07-02 2023-10-24 Patrick Vitello Flex tec closure assembly for a medical dispenser
US11857751B1 (en) 2018-07-02 2024-01-02 International Medical Industries Inc. Assembly for a medical connector
US11872187B1 (en) 2020-12-28 2024-01-16 Jonathan Vitello Tamper evident seal for a vial cover
US11904149B1 (en) 2020-02-18 2024-02-20 Jonathan Vitello Oral tamper evident closure with retained indicator
US11911339B1 (en) 2019-08-15 2024-02-27 Peter Lehel Universal additive port cap
US12070591B1 (en) 2020-12-14 2024-08-27 Patrick Vitello Snap action tamper evident closure assembly

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US4463875A (en) * 1982-06-14 1984-08-07 Robert W. Mann Method and apparatus for preparing and applying a two-component cement
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US5823671A (en) * 1994-05-10 1998-10-20 Collagen Corporation Apparatus and method of mixing materials in a sterile environment
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US6079866A (en) * 1998-02-19 2000-06-27 General Electric Company Mixing apparatus for mixing thermosetting and thermoplastic resin blends prior to molding
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US6685922B2 (en) 2000-03-23 2004-02-03 Dentsply International Inc. Tooth whitening material and method of whitening teeth
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US7371406B2 (en) 2000-05-25 2008-05-13 Alkermes Controlled Therapeutics, Inc. Preparation of injectable suspensions having improved injectability
US7799345B2 (en) 2000-05-25 2010-09-21 Alkermes Controlled Therapeutics, Inc. Preparation of injectable suspensions having improved injectability
US20050037978A1 (en) * 2000-12-22 2005-02-17 Zimmer Orthobiologics, Inc. Implantable osteogenic material
US20040048227A1 (en) * 2000-12-29 2004-03-11 Izidor Brajnovic Method and device for a dental unit or unit intended for the human body
US6685923B2 (en) 2001-01-25 2004-02-03 Dentsply Research & Development Corp. Tooth whitening material and method of whitening teeth
US6592251B2 (en) 2001-01-26 2003-07-15 Howmedica Osteonics Corp. Cement mixing and dispensing device
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US20080212399A1 (en) * 2005-05-24 2008-09-04 Mihra Pharmaceuticals Double-Chamber Mixing Device For Viscous Pharmaceutical Substances
US7878704B2 (en) * 2005-05-24 2011-02-01 Uteron Pharma S.A. Double-chamber mixing device for viscous pharmaceutical substances
US20070068594A1 (en) * 2005-09-26 2007-03-29 Fischer Dan E Syringe locking structures
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US20100260004A1 (en) * 2007-11-08 2010-10-14 Yiping Wang Device and system for mixing and dispensing components stored separately from one another
US8657481B2 (en) * 2010-01-15 2014-02-25 Spine Wave, Inc. Systems and methods for mixing fluids
US20110176382A1 (en) * 2010-01-15 2011-07-21 Spine Wave, Inc. Systems and Methods for Mixing Fluids
US10183129B1 (en) 2010-12-03 2019-01-22 Medical Device Engineering, Llc Tamper indicating closure assembly
US11040154B1 (en) 2014-02-03 2021-06-22 Medical Device Engineering Llc Tamper evident cap for medical fitting
US10912898B1 (en) 2014-02-03 2021-02-09 Medical Device Engineering Llc Tamper evident cap for medical fitting
US10207099B1 (en) 2014-02-21 2019-02-19 Patrick Vitello Closure assembly for medical fitting
US10166347B1 (en) 2014-07-18 2019-01-01 Patrick Vitello Closure assembly for a medical device
US20200405364A1 (en) * 2014-11-14 2020-12-31 Warsaw Orthopedic, Inc. Hydratable bone material and methods of use
US10300263B1 (en) 2015-02-27 2019-05-28 Timothy Brandon Hunt Closure assembly for a medical connector
US10166343B1 (en) 2015-03-13 2019-01-01 Timothy Brandon Hunt Noise evident tamper cap
US10315024B1 (en) 2015-03-19 2019-06-11 Patick Vitello Torque limiting closure assembly
US20180055739A1 (en) * 2015-07-14 2018-03-01 Neomed, Inc. Dosing control coupling for enteral fluid transfer and enteral couplings and syringes
US10307548B1 (en) 2016-12-14 2019-06-04 Timothy Brandon Hunt Tracking system and method for medical devices
US11097071B1 (en) 2016-12-14 2021-08-24 International Medical Industries Inc. Tamper evident assembly
US10953162B1 (en) 2016-12-28 2021-03-23 Timothy Brandon Hunt Tamper evident closure assembly
US10758684B1 (en) 2017-03-03 2020-09-01 Jonathan J. Vitello Tamper evident assembly
US11040149B1 (en) 2017-03-30 2021-06-22 International Medical Industries Tamper evident closure assembly for a medical device
US10888672B1 (en) 2017-04-06 2021-01-12 International Medical Industries, Inc. Tamper evident closure assembly for a medical device
US10898659B1 (en) 2017-05-19 2021-01-26 International Medical Industries Inc. System for handling and dispensing a plurality of products
US10933202B1 (en) 2017-05-19 2021-03-02 International Medical Industries Inc. Indicator member of low strength resistance for a tamper evident closure
US11541180B1 (en) 2017-12-21 2023-01-03 Patrick Vitello Closure assembly having a snap-fit construction
US11278681B1 (en) 2018-02-20 2022-03-22 Robert Banik Tamper evident adaptor closure
US11413406B1 (en) 2018-03-05 2022-08-16 Jonathan J. Vitello Tamper evident assembly
US11857751B1 (en) 2018-07-02 2024-01-02 International Medical Industries Inc. Assembly for a medical connector
US11779520B1 (en) 2018-07-02 2023-10-10 Patrick Vitello Closure for a medical dispenser including a one-piece tip cap
US11793987B1 (en) 2018-07-02 2023-10-24 Patrick Vitello Flex tec closure assembly for a medical dispenser
US11690994B1 (en) 2018-07-13 2023-07-04 Robert Banik Modular medical connector
US11426328B1 (en) 2018-08-31 2022-08-30 Alexander Ollmann Closure for a medical container
US11471610B1 (en) 2018-10-18 2022-10-18 Robert Banik Asymmetrical closure for a medical device
US20200121865A1 (en) * 2018-10-23 2020-04-23 Dravid Koura Fluid-Delivery System, Device, and Adapter for Delivering Fluid to Tissue
US11872364B2 (en) * 2018-10-23 2024-01-16 Dravid Koura Fluid-delivery system, device, and adapter for delivering fluid to tissue
USD903865S1 (en) 2018-11-19 2020-12-01 International Medical Industries, Inc. Self-righting tip cap
US11911339B1 (en) 2019-08-15 2024-02-27 Peter Lehel Universal additive port cap
USD948713S1 (en) 2019-09-03 2022-04-12 International Medical Industries, Inc. Asymmetrical self righting tip cap
US11697527B1 (en) 2019-09-11 2023-07-11 Logan Hendren Tamper evident closure assembly
US11357588B1 (en) 2019-11-25 2022-06-14 Patrick Vitello Needle packaging and disposal assembly
US11904149B1 (en) 2020-02-18 2024-02-20 Jonathan Vitello Oral tamper evident closure with retained indicator
US11523970B1 (en) 2020-08-28 2022-12-13 Jonathan Vitello Tamper evident shield
US12070591B1 (en) 2020-12-14 2024-08-27 Patrick Vitello Snap action tamper evident closure assembly
US11872187B1 (en) 2020-12-28 2024-01-16 Jonathan Vitello Tamper evident seal for a vial cover

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