US20070028980A1 - Mixing eductor - Google Patents
Mixing eductor Download PDFInfo
- Publication number
- US20070028980A1 US20070028980A1 US11/195,052 US19505205A US2007028980A1 US 20070028980 A1 US20070028980 A1 US 20070028980A1 US 19505205 A US19505205 A US 19505205A US 2007028980 A1 US2007028980 A1 US 2007028980A1
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- US
- United States
- Prior art keywords
- eductor
- flow guide
- venturi tube
- flow
- flow path
- Prior art date
- 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.)
- Abandoned
Links
- 239000007788 liquid Substances 0.000 claims abstract description 25
- 230000002265 prevention Effects 0.000 claims abstract description 16
- 238000000034 method Methods 0.000 claims description 7
- 235000014666 liquid concentrate Nutrition 0.000 claims description 6
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 abstract description 29
- 235000008504 concentrate Nutrition 0.000 description 11
- 239000012141 concentrate Substances 0.000 description 11
- 239000000126 substance Substances 0.000 description 10
- 239000012530 fluid Substances 0.000 description 4
- 238000010586 diagram Methods 0.000 description 2
- 238000007865 diluting Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 229920001971 elastomer Polymers 0.000 description 2
- 239000000806 elastomer Substances 0.000 description 2
- 230000009471 action Effects 0.000 description 1
- 230000008859 change Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000000465 moulding Methods 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 230000001105 regulatory effect Effects 0.000 description 1
Images
Classifications
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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
- B01F25/30—Injector mixers
-
- 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
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
- B01F25/3124—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof characterised by the place of introduction of the main flow
- B01F25/31243—Eductor or eductor-type venturi, i.e. the main flow being injected through the venturi with high speed in the form of a jet
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
- B01F23/00—Mixing according to the phases to be mixed, e.g. dispersing or emulsifying
- B01F23/40—Mixing liquids with liquids; Emulsifying
-
- 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
- B01F25/30—Injector mixers
- B01F25/31—Injector mixers in conduits or tubes through which the main component flows
- B01F25/312—Injector mixers in conduits or tubes through which the main component flows with Venturi elements; Details thereof
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- E—FIXED CONSTRUCTIONS
- E03—WATER SUPPLY; SEWERAGE
- E03C—DOMESTIC PLUMBING INSTALLATIONS FOR FRESH WATER OR WASTE WATER; SINKS
- E03C1/00—Domestic plumbing installations for fresh water or waste water; Sinks
- E03C1/02—Plumbing installations for fresh water
- E03C1/04—Water-basin installations specially adapted to wash-basins or baths
- E03C1/046—Adding soap, disinfectant, or the like in the supply line or at the water outlet
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
- F16K—VALVES; TAPS; COCKS; ACTUATING-FLOATS; DEVICES FOR VENTING OR AERATING
- F16K15/00—Check valves
- F16K15/14—Check valves with flexible valve members
-
- 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
- Y10T137/0318—Processes
- Y10T137/0324—With control of flow by a condition or characteristic of a fluid
- Y10T137/0379—By fluid pressure
-
- 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
- Y10T137/0318—Processes
- Y10T137/0396—Involving pressure control
-
- 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
- Y10T137/3149—Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
- Y10T137/3185—Air vent in liquid flow line
- Y10T137/3294—Valved
-
- 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
- Y10T137/3149—Back flow prevention by vacuum breaking [e.g., anti-siphon devices]
- Y10T137/3185—Air vent in liquid flow line
- Y10T137/3294—Valved
- Y10T137/3331—With co-acting valve in liquid flow path
-
- 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
- Y10T137/7722—Line condition change responsive valves
- Y10T137/7837—Direct response valves [i.e., check valve type]
- Y10T137/7879—Resilient material valve
-
- 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
- Y10T137/8593—Systems
- Y10T137/87571—Multiple inlet with single outlet
- Y10T137/87587—Combining by aspiration
-
- 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
- Y10T137/8593—Systems
- Y10T137/87571—Multiple inlet with single outlet
- Y10T137/87587—Combining by aspiration
- Y10T137/87595—Combining of three or more diverse fluids
-
- 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
- Y10T137/8593—Systems
- Y10T137/87571—Multiple inlet with single outlet
- Y10T137/87587—Combining by aspiration
- Y10T137/87643—With condition responsive valve
Definitions
- This invention relates generally to apparatus employed in the mixing of chemical concentrate with a diluting liquid. More particularly, it relates to an eductor for drawing chemical concentrate from a container and into the diluting liquid wherein the reduced pressure in the eductor can be easily adjusted.
- One of the new backflow prevention methods is to use an elastomer in a critical path in such a manner that if a backsiphonage occurs, the elastomer will seal the path closed, thus preventing backflow.
- the atmosphere of an enclosed water supply system lends itself well to Herschel-type venturi systems. Vacuum profiles are based on standard inlet lengths, diameters and cone angles, which are proportional to exit throat lengths, diameters and cone angles. To change a vacuum profile requires a redesign of the entire venturi.
- the prior art does not provide a non-air gap eductor wherein the vacuum profile can be changed without redesigning the entire venturi.
- the eductor of this invention which in one embodiment includes a body member providing a longitudinal axis.
- a flow path extends longitudinally through the body member, the flow path defined by a first flow guide and a second flow guide, the second flow guide constructed and arranged to receive liquid from the first flow guide.
- a closed back flow prevention member is operatively associated with the first flow guide.
- a venturi tube is positioned in the flow path for receiving liquid from the second flow guide, the second flow guide and the venturi tube are connected by a passage portion. There is an opening in the passage, the opening is constructed and arranged to produce a desired vacuum in the venturi tube. At least one channel is provided laterally to the longitudinal axis for flowing a liquid concentrate into the venturi tube.
- the flow path further includes a discharge passage extending from the venturi tube to the outside of the body member.
- the channel includes a check valve and there are present two lateral channels.
- the eductor in another embodiment includes a body member providing a longitudinal axis.
- a flow path extends longitudinally through the body member, the flow path defined by a first flow guide and a second flow guide, the second flow guide constructed and arranged to receive liquid from the first flow guide.
- a closed backflow prevention member is operatively associated with the first flow guide.
- a venturi tube is positioned in the flow path for receiving liquid from the second flow guide, the second flow guide and the venturi tube are connected by a passage portion. There is an opening in the passage.
- the second flow guide is defined by a tubular portion extending over the opening in the passage. At least one channel is provided laterally to the longitudinal axis for flowing a liquid concentrate into the venturi tube.
- the flow path further including a discharge passage extending from the venturi tube to the outside of the body member. The extension of the tubular portion over the opening in the passage is designed to afford a desired vacuum profile.
- the eductor includes a body member providing a longitudinal axis.
- a flow path extends longitudinally through the body member, the flow path defined by a first flow guide and a second flow guide, the second flow guide constructed and arranged to receive liquid from the first flow guide.
- a closed back flow prevention member is operatively associated with the first flow guide.
- a venturi tube is positioned in the flow path for receiving liquid from the second flow guide, the first flow guide and the second flow guide positioned in a spaced relationship so as to divert some of the liquid from the venturi tube to produce a desired vacuum in the venturi tube. At least one channel lateral to the longitudinal axis for flowing a liquid concentrate into the venturi tube.
- the flow path further including a discharge passage extending from the venturi tube to the outside of the body member.
- the second flow guide and the tubular portion are in the form of a funnel member.
- FIG. 1 is a schematic diagram of a type of dispensing equipment with which the new eductor may be used;
- FIG. 2 is an elevational view of the eductor
- FIG. 3 is a sectional view of one embodiment of the invention.
- FIG. 4 is a sectional view of another embodiment of the invention.
- FIG. 5 is a partial enlarged view of the embodiment shown in FIG. 3 ;
- FIG. 6 is a partial enlarged view of the embodiment shown in FIG. 5 taken along line 6 - 6 ;
- FIG. 7 is a view of the components shown in FIG. 6 with the components displaced;
- FIG. 8 is a sectional view of another embodiment of the invention.
- FIG. 9 is a view similar to FIG. 8 with the embodiment turned 45 degrees.
- FIG. 10 is a view similar to FIG. 9 showing another embodiment of the invention.
- FIG. 1 there is shown a schematic diagram for a type of dispensing equipment generally in which the eductor 10 of the invention is employed.
- the equipment 11 has an enclosure 13 and containers 15 in the enclosure 13 or, possibly, outside the enclosure 13 but connected as shown by lines 19 .
- each container 15 is filled with a different liquid 17 a and 17 b .
- it is desirable to have two containers 15 filled with the same liquid 17 there may be occasions where it is desirable to have two containers 15 filled with the same liquid 17 .
- the inlet line 21 of the equipment 11 is connected to a source of water feeding a header 23 .
- Branch pipes 25 are connected to the header 23 and each branch pipe 25 includes a valve 27 “dedicated” to that pipe 25 .
- a particular valve 27 When a particular valve 27 is actuated, water flows through the related eductor 10 and mixes a concentrated liquid 17 with such water to form a dilute solution. Each mixed dilute solution is dispensed through a separate tube 29 .
- the amount of concentrate introduced to the eductor 10 can be controlled by the valves 32 .
- the eductor 10 includes a generally tubular body 33 with two opposing ribs 43 and 44 . It has an inlet end 35 and an outlet section 37 , the latter having an outlet fitting 39 attached thereto. Such fitting 39 has a necked-down portion 41 for connection to outlet tube 29 .
- the inlet section 35 of eductor 10 includes a core structure 48 with a barrel 50 surrounded by the ribs 52 .
- An outer casing 58 surrounds the resilient sleeve and has the vents 60 .
- An outlet passage 61 communicates with a funnel member 64 or first flow guide seated in the conical section 63 .
- a seal 66 is positioned between the outer casing 58 and the conical section 63 .
- a second flow guide 67 is connected to the first flow guide 64 and the second flow guide 67 is connected to venturi tube 65 by a passage portion 69 provided by the funnel portion 80 of the first flow guide 64 , the conical section 63 , and the second flow guide 67 .
- An opening 70 is provided in the passage portion 69 of the second flow guide 67 .
- Inlet section 35 is interconnected to the tubular body 33 by the connecting portion 62 . It includes input connections 72 and 73 communicating with channels 75 and 76 which in turn communicate with passage 78 .
- a check valve assembly, 74 preferably of the ball check type, is connected to input connection 73 . It will be seen in FIG. 3 that check valve assembly 74 is shown on an opposing side from that shown in FIG. 2 . Also, input connection 72 is shown.
- FIGS. 4, 8 , 9 and 10 include many of the same components as described in FIG. 3 , with similar numbers referring to similar components except with an “A”, “B” or “C” suffix.
- One of the differences between embodiment 10 and embodiments 10 A, 10 B and 10 C is that in embodiments 10 A, 10 B and 10 C they do not include the funnel member 64 .
- embodiment 10 shows the positioning of funnel stem 80 of funnel member 64 over a portion of the opening 70 . The purpose of this is explained in the Operation to follow.
- eductor 10 B differs from eductor 10 A in the configuration and connection between the first flow guide 64 B and the second flow guide 67 B. Other differences are the one piece molding of outer casing 58 B with ribs 43 B and 44 A and the additional connecting portion 62 B between the inlet section 35 B and venturi section 36 B.
- eductor 10 C differs from the other eductors 10 , 10 A and 10 B in that there is no window in the second flow guide 67 C. Instead the first flow guide 64 C is spaced from the second flow guide 67 C. This provides a diversion of water away from venturi tube 65 C.
- eductors 10 , 10 A, 10 B and 10 C will be connected into the dispensing equipment 11 as previously described in conjunction with FIG. 1 .
- venturi tube 65 As the water passes into venturi tube 65 it creates a reduction in pressure sufficient to open ball check valve assembly 74 and draw a chemical concentrated from a container 15 into inlet connection 73 and into channel 76 . From channel 76 it is mixed with water flowing through passage 78 . The combined solution of water and concentrate exits through outlet fitting 39 and outlet tube 29 providing a discharge passage as seen in FIG. 1 .
- ball check valve assembly 74 serves as a primer for the vacuum in passage 76 and keep prime on the container 15 . It also prevents pressurized water from source to contaminate concentrate to chemical from inlet 73 .
- eductor 10 An important aspect of eductor 10 is the positioning of funnel portion 80 in conjunction with opening 70 . This controls the amount of water flowing through the venturi tube 65 and accordingly, the amount of negative pressure created therein. It will be appreciated that the greater the extension of the funnel stem over the opening 70 , the greater the volume of water will flow into the venturi tube 65 , and the greater the negative pressure. Diverted water passes through the opening 70 and forms a secondary stream which passes into the chamber 68 and subsequently into outlet port 71 , whereafter it is combined with the stream of water and chemical concentrate exiting from passage 78 . This concentric flow of the secondary stream and the primary stream through the venturi tube 65 is illustrated in U.S. Pat. No. 5,927,338. It is also described in conjunction with eductor 10 B in FIG. 9 .
- Eductors 10 A and 10 B function in substantially the same manner as described for eductor 10 .
- the openings 70 A and 70 B are designed with specific dimensions to direct a predetermined amount of water away from the venturi tubes 65 A and 65 B and thus effect a desired vacuum.
- FIG. 9 is presented to show the secondary stream which forms as a result of water being diverted from the venturi tube 65 B. The stream will flow outwardly into chamber 68 B and follow the path shown by the arrows until it exits into hose 82 B. At the same time chemical concentrate diluted by the water passing through venturi tube 65 B will exit in tube 83 B. As stated previously, this flow of a primary and a secondary stream of water and diluted chemical concentrate and a secondary stream of water is described in U.S. Pat. No. 5,927,338.
- the eductor 10 C shown in FIG. 10 operates without a window. It relies on the spacing of first flow guide 64 C from the second flow guide 67 C to diver water away from the venturi tube 65 C and thereby create the desired vacuum effect. This is a unique feature as it has never been done before in conjunction with a non-air gap eductor.
- the siphon-breaking air gap provided by barrel 50 and resilient sleeve 56 operates in the manner described in the previously referred to PCT Application No. PCT/US03/08428.
- As water flows through fluid outlets 54 it will expand sleeve 56 and water will flow between the sleeve and barrel 50 into funnel member 64 and ultimately to venturi tube 65 .
- the resilient sleeve 56 contracts and fits lightly around the barrel 50 to prevent any reverse flow of water. If a siphon action occurs in the water lines 21 and 25 , such as when there is a sudden drop in pressure of the main water supply, the resilient sleeve 56 is already sealed against the barrel 50 , as already discussed. Fluid instead passes into the space between the sleeve 56 and the outer casing 58 and exits through the vents 60 .
- the eductors 10 and 10 A have been shown with two inlet ports or connections 72 and 73 . If desired, only one could be used as shown in conjunction with eductor 10 B. In that instance, the other would be plugged. Alternatively, the inlet connections can be connected to two containers 15 each with the same liquid chemical concentrate or, alternatively, with different chemical concentrate. Ribs 43 A, 44 A and inlet section 35 A are shown as one piece and outer casing 58 as another. If desired, these could be molded from a suitable plastic material as one piece as indicated in FIGS. 8, 9 and 10 . Other variations and modifications of this invention will be obvious to those skilled in the art. This invention is not to be limited except as set forth in the following claims.
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- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- Engineering & Computer Science (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Hydrology & Water Resources (AREA)
- Public Health (AREA)
- Water Supply & Treatment (AREA)
- Jet Pumps And Other Pumps (AREA)
- Accessories For Mixers (AREA)
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Abstract
An eductor for mixing two liquids wherein the eductor includes a closed or non-air gap back flow prevention member. The vacuum profile of the eductor is altered by changing an opening in a passage portion to controllably divert water flow around the venturi tube or diverting the water without the opening. This affords the changing of the vacuum profile without redesigning the entire eductor.
Description
- NONE
- NONE
- 1. Technical Field
- This invention relates generally to apparatus employed in the mixing of chemical concentrate with a diluting liquid. More particularly, it relates to an eductor for drawing chemical concentrate from a container and into the diluting liquid wherein the reduced pressure in the eductor can be easily adjusted.
- 2. Background Art
- The use of eductors for mixing chemical concentrates into a stream of liquid to provide a diluted solution is well known. For example, see U.S. Pat. No. 5,927,338 and No. 6,279,598 issued to S.C. Johnson Commercial Markets, Inc., which teachings are incorporated herein by reference.
- Eductors without an air gap are known. One is described in U.S. Pat. No. 6,240,983.
- Certain advances in technologies and changes in regulatory communities have given rise to non-air gap means of backflow prevention. One of the new backflow prevention methods is to use an elastomer in a critical path in such a manner that if a backsiphonage occurs, the elastomer will seal the path closed, thus preventing backflow. The atmosphere of an enclosed water supply system lends itself well to Herschel-type venturi systems. Vacuum profiles are based on standard inlet lengths, diameters and cone angles, which are proportional to exit throat lengths, diameters and cone angles. To change a vacuum profile requires a redesign of the entire venturi.
- The prior art does not provide a non-air gap eductor wherein the vacuum profile can be changed without redesigning the entire venturi.
- The objects of certain embodiments of the invention therefore are:
- Providing an improved eductor for a mixing and dispensing apparatus.
- Providing an improved non-air gap eductor.
- Providing an improved non-air gap eductor wherein the vacuum profile can be changed without redesigning the entire unit.
- Providing an improved non-air gap eductor of the foregoing type which can be easily retrofitted.
- Providing an improved non-air gap eductor of the foregoing type which can be manufactured at minimal cost.
- The foregoing objects are accomplished and the shortcomings of the prior art are overcome by the eductor of this invention which in one embodiment includes a body member providing a longitudinal axis. A flow path extends longitudinally through the body member, the flow path defined by a first flow guide and a second flow guide, the second flow guide constructed and arranged to receive liquid from the first flow guide. A closed back flow prevention member is operatively associated with the first flow guide. A venturi tube is positioned in the flow path for receiving liquid from the second flow guide, the second flow guide and the venturi tube are connected by a passage portion. There is an opening in the passage, the opening is constructed and arranged to produce a desired vacuum in the venturi tube. At least one channel is provided laterally to the longitudinal axis for flowing a liquid concentrate into the venturi tube. The flow path further includes a discharge passage extending from the venturi tube to the outside of the body member.
- In one aspect the channel includes a check valve and there are present two lateral channels.
- In another embodiment the eductor includes a body member providing a longitudinal axis. A flow path extends longitudinally through the body member, the flow path defined by a first flow guide and a second flow guide, the second flow guide constructed and arranged to receive liquid from the first flow guide. A closed backflow prevention member is operatively associated with the first flow guide. A venturi tube is positioned in the flow path for receiving liquid from the second flow guide, the second flow guide and the venturi tube are connected by a passage portion. There is an opening in the passage. The second flow guide is defined by a tubular portion extending over the opening in the passage. At least one channel is provided laterally to the longitudinal axis for flowing a liquid concentrate into the venturi tube. The flow path further including a discharge passage extending from the venturi tube to the outside of the body member. The extension of the tubular portion over the opening in the passage is designed to afford a desired vacuum profile.
- In still another embodiment, the eductor includes a body member providing a longitudinal axis. A flow path extends longitudinally through the body member, the flow path defined by a first flow guide and a second flow guide, the second flow guide constructed and arranged to receive liquid from the first flow guide. A closed back flow prevention member is operatively associated with the first flow guide. A venturi tube is positioned in the flow path for receiving liquid from the second flow guide, the first flow guide and the second flow guide positioned in a spaced relationship so as to divert some of the liquid from the venturi tube to produce a desired vacuum in the venturi tube. At least one channel lateral to the longitudinal axis for flowing a liquid concentrate into the venturi tube. The flow path further including a discharge passage extending from the venturi tube to the outside of the body member.
- In yet another aspect there is a method of establishing a vacuum profile in a closed back flow prevention eductor which includes modifying the opening in a passage of the eductor.
- In another aspect the second flow guide and the tubular portion are in the form of a funnel member.
- These and still other objects and advantages of the invention will be apparent from the description which follows. In the detailed description below, a preferred embodiment of the invention will be described in reference to the full scope of the invention. Rather, the invention may be employed in other embodiments.
-
FIG. 1 is a schematic diagram of a type of dispensing equipment with which the new eductor may be used; -
FIG. 2 is an elevational view of the eductor; -
FIG. 3 is a sectional view of one embodiment of the invention; -
FIG. 4 is a sectional view of another embodiment of the invention; -
FIG. 5 is a partial enlarged view of the embodiment shown inFIG. 3 ; -
FIG. 6 is a partial enlarged view of the embodiment shown inFIG. 5 taken along line 6-6; -
FIG. 7 is a view of the components shown inFIG. 6 with the components displaced; -
FIG. 8 is a sectional view of another embodiment of the invention; -
FIG. 9 is a view similar toFIG. 8 with the embodiment turned 45 degrees; and -
FIG. 10 is a view similar toFIG. 9 showing another embodiment of the invention. - Referring to
FIG. 1 , there is shown a schematic diagram for a type of dispensing equipment generally in which theeductor 10 of the invention is employed. The equipment 11 has anenclosure 13 and containers 15 in theenclosure 13 or, possibly, outside theenclosure 13 but connected as shown by lines 19. Normally, each container 15 is filled with a different liquid 17 a and 17 b. But as explained below, there may be occasions where it is desirable to have two containers 15 filled with the same liquid 17. - The inlet line 21 of the equipment 11 is connected to a source of water feeding a header 23.
Branch pipes 25 are connected to the header 23 and eachbranch pipe 25 includes avalve 27 “dedicated” to thatpipe 25. When aparticular valve 27 is actuated, water flows through therelated eductor 10 and mixes a concentrated liquid 17 with such water to form a dilute solution. Each mixed dilute solution is dispensed through aseparate tube 29. The amount of concentrate introduced to the eductor 10 can be controlled by thevalves 32. - As seen in
FIG. 2 , theeductor 10 includes a generallytubular body 33 with two opposingribs inlet end 35 and anoutlet section 37, the latter having an outlet fitting 39 attached thereto.Such fitting 39 has a necked-down portion 41 for connection tooutlet tube 29. - As shown in
FIG. 3 , theinlet section 35 ofeductor 10 includes a core structure 48 with a barrel 50 surrounded by theribs 52. There arefluid outlets 54 at the top of barrel 50 as well as aresilient sleeve 56 and a seal ring 53. An outer casing 58 surrounds the resilient sleeve and has thevents 60. These previously described components are illustrated in PCT Application No. PCT/US03/08428, which teachings are incorporated by reference. Their function is described in this patent application and serve as a normally closed siphon-breaking air gap. - An
outlet passage 61 communicates with afunnel member 64 or first flow guide seated in theconical section 63. Aseal 66 is positioned between the outer casing 58 and theconical section 63. Asecond flow guide 67 is connected to thefirst flow guide 64 and thesecond flow guide 67 is connected toventuri tube 65 by a passage portion 69 provided by thefunnel portion 80 of thefirst flow guide 64, theconical section 63, and thesecond flow guide 67. Anopening 70 is provided in the passage portion 69 of thesecond flow guide 67. -
Inlet section 35 is interconnected to thetubular body 33 by the connectingportion 62. It includesinput connections 72 and 73 communicating withchannels connection 73. It will be seen inFIG. 3 thatcheck valve assembly 74 is shown on an opposing side from that shown inFIG. 2 . Also, input connection 72 is shown. - The embodiments 10A, 10B and 10C illustrated in
FIGS. 4, 8 , 9 and 10 include many of the same components as described inFIG. 3 , with similar numbers referring to similar components except with an “A”, “B” or “C” suffix. One of the differences betweenembodiment 10 and embodiments 10A, 10B and 10C is that in embodiments 10A, 10B and 10C they do not include thefunnel member 64. - As best illustrated in
FIGS. 5-7 ,embodiment 10 shows the positioning of funnel stem 80 offunnel member 64 over a portion of theopening 70. The purpose of this is explained in the Operation to follow. - Referring to
FIGS. 8 and 9 , eductor 10B differs from eductor 10A in the configuration and connection between thefirst flow guide 64B and the second flow guide 67B. Other differences are the one piece molding ofouter casing 58B withribs 43B and 44A and the additional connecting portion 62B between the inlet section 35B and venturi section 36B. - As shown in
FIG. 10 , eductor 10C differs from theother eductors 10, 10A and 10B in that there is no window in the second flow guide 67C. Instead the first flow guide 64C is spaced from the second flow guide 67C. This provides a diversion of water away from venturi tube 65C. - A better understanding of the
eductors 10, 10A, 10B and 10C will be had by a description of their operation. Referring first toeductor 10, andFIGS. 3 and 5 -7, it will be connected into the dispensing equipment 11 as previously described in conjunction withFIG. 1 . Water flows intobranch pipe 25 and intoinlet section 35. From there it flows throughfluid outlets 54 and between barrel 50 andresilient sleeve 56. It then flows throughoutlet passage 61, intofunnel member 64, after which it flows into passage portion 69, overopening 70 and intoventuri tube 65. As the water passes intoventuri tube 65 it creates a reduction in pressure sufficient to open ballcheck valve assembly 74 and draw a chemical concentrated from a container 15 intoinlet connection 73 and intochannel 76. Fromchannel 76 it is mixed with water flowing through passage 78. The combined solution of water and concentrate exits through outlet fitting 39 andoutlet tube 29 providing a discharge passage as seen inFIG. 1 . - The purpose of ball
check valve assembly 74 is to serve as a primer for the vacuum inpassage 76 and keep prime on the container 15. It also prevents pressurized water from source to contaminate concentrate to chemical frominlet 73. - An important aspect of
eductor 10 is the positioning offunnel portion 80 in conjunction withopening 70. This controls the amount of water flowing through theventuri tube 65 and accordingly, the amount of negative pressure created therein. It will be appreciated that the greater the extension of the funnel stem over theopening 70, the greater the volume of water will flow into theventuri tube 65, and the greater the negative pressure. Diverted water passes through theopening 70 and forms a secondary stream which passes into thechamber 68 and subsequently intooutlet port 71, whereafter it is combined with the stream of water and chemical concentrate exiting from passage 78. This concentric flow of the secondary stream and the primary stream through theventuri tube 65 is illustrated in U.S. Pat. No. 5,927,338. It is also described in conjunction with eductor 10B inFIG. 9 . - Eductors 10A and 10B function in substantially the same manner as described for
eductor 10. Instead of funnel stem 80 covering a portion of theopening 70, the openings 70A and 70B are designed with specific dimensions to direct a predetermined amount of water away from theventuri tubes 65A and 65B and thus effect a desired vacuum.FIG. 9 is presented to show the secondary stream which forms as a result of water being diverted from theventuri tube 65B. The stream will flow outwardly into chamber 68B and follow the path shown by the arrows until it exits into hose 82B. At the same time chemical concentrate diluted by the water passing throughventuri tube 65B will exit in tube 83B. As stated previously, this flow of a primary and a secondary stream of water and diluted chemical concentrate and a secondary stream of water is described in U.S. Pat. No. 5,927,338. - The eductor 10C shown in
FIG. 10 operates without a window. It relies on the spacing of first flow guide 64C from the second flow guide 67C to diver water away from the venturi tube 65C and thereby create the desired vacuum effect. This is a unique feature as it has never been done before in conjunction with a non-air gap eductor. - The siphon-breaking air gap provided by barrel 50 and
resilient sleeve 56 operates in the manner described in the previously referred to PCT Application No. PCT/US03/08428. As water flows throughfluid outlets 54, it will expandsleeve 56 and water will flow between the sleeve and barrel 50 intofunnel member 64 and ultimately toventuri tube 65. When there is no flow of water from thewater supply 21 and 25, theresilient sleeve 56 contracts and fits lightly around the barrel 50 to prevent any reverse flow of water. If a siphon action occurs in thewater lines 21 and 25, such as when there is a sudden drop in pressure of the main water supply, theresilient sleeve 56 is already sealed against the barrel 50, as already discussed. Fluid instead passes into the space between thesleeve 56 and the outer casing 58 and exits through thevents 60. - It will then be seen that there is now provided an eductor wherein the vacuum profile can be changed without redesigning the entire venturi.
- The
eductors 10 and 10A have been shown with two inlet ports orconnections 72 and 73. If desired, only one could be used as shown in conjunction with eductor 10B. In that instance, the other would be plugged. Alternatively, the inlet connections can be connected to two containers 15 each with the same liquid chemical concentrate or, alternatively, with different chemical concentrate.Ribs 43A, 44A andinlet section 35A are shown as one piece and outer casing 58 as another. If desired, these could be molded from a suitable plastic material as one piece as indicated inFIGS. 8, 9 and 10. Other variations and modifications of this invention will be obvious to those skilled in the art. This invention is not to be limited except as set forth in the following claims.
Claims (18)
1. An eductor for mixing first and second liquids comprising:
a body member providing a longitudinal axis;
a flow path extending longitudinally through the body member, the flow path defined by a first flow guide and a second flow guide, the second flow guide constructed and arranged to receive liquid from the first flow guide;
a closed back flow prevention member operatively associated with the first flow guide;
a venturi tube in the flow path for receiving liquid from the second flow guide, the second flow guide and the venturi tube connected by a passage portion;
an opening in the passage, the opening constructed and arranged to produce a desired vacuum in the venturi tube; and
at least one channel lateral to the longitudinal axis for flowing a liquid concentrate into the venturi tube; and
the flow path further including a discharge passage extending from the venturi tube to the outside of the body member.
2. The eductor as defined in claim 1 wherein the lateral channel includes a check valve.
3. The eductor as defined in claim 1 wherein there are present two lateral channels.
4. The eductor as defined in claim 1 wherein the back flow prevention member includes a resilient sheath.
5. An eductor for mixing first and second liquids comprising:
a body member providing a longitudinal axis;
a flow path extending longitudinally through the body member, the flow path defined by a first flow guide and a second flow guide, the second flow guide constructed and arranged to receive liquid from the first flow guide;
a closed back flow prevention member operatively associated with the first flow guide;
a venturi tube in the flow path for receiving liquid from the second flow guide, the second flow guide and the venturi tube connected by a passage portion;
an opening in the passage, the second flow guide defined by a tubular portion extending over the opening in the passage; and
at least one channel lateral to the longitudinal axis for flowing a liquid concentrate into the venturi tube;
the flow path further including a discharge passage extending from the venturi tube to the outside of the body member; and
wherein the extension of the tubular portion over the opening in the passage is designed to afford a desired vacuum profile.
6. The eductor as defined in claim 5 wherein the second flow guide and the tubular portion are in the form of a funnel member.
7. The eductor as defined in claim 5 wherein the lateral channel includes a check valve.
8. The eductor as defined in claim 5 wherein there are present two lateral channels.
9. The eductor as defined in claim 5 wherein the back flow prevention member includes a resilient sheath.
10. An eductor for mixing first and second liquids comprising:
a body member providing a longitudinal axis;
a flow path extending longitudinally through the body member, the flow path defined by a first flow guide and a second flow guide, the second flow guide constructed and arranged to receive liquid from the first flow guide;
a closed back flow prevention member operatively associated with the first flow guide;
a venturi tube in the flow path for receiving liquid from the second flow guide, the second flow guide and the venturi tube connected by a passage portion;
the first flow guide and the second flow guide positioned in a spaced relationship so as to divert some of first liquid from the venturi tube to produce a desired vacuum in the venturi tube;
at least one channel lateral to the longitudinal axis for flowing a liquid concentrate into the venturi tube; and
the flow path further including a discharge passage extending from the venturi tube to the outside of the body member.
11. The eductor as defined in claim 10 wherein the lateral channel includes a check valve.
12. The eductor as defined in claim 10 wherein there are present two lateral channels.
13. The eductor as defined in claim 10 wherein the back flow prevention member includes a resilient sheath.
14. A method of establishing a vacuum profile in an eductor which includes modifying the opening as defined in claim 1 .
15. A method of establishing a vacuum profile in an eductor which includes extending the tubular portion over the opening as set forth in claim 5 .
16. A method of establishing a vacuum profile in a closed back flow prevention eductor employing the eductor of claim 1 .
17. A method of establishing a vacuum profile in a closed back flow prevention eductor employing the eductor of claim 5 .
18. A method of establishing a vacuum profile in a closed back flow prevention eductor employing the eductor of claim 12
Priority Applications (14)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/195,052 US20070028980A1 (en) | 2005-08-02 | 2005-08-02 | Mixing eductor |
JP2008525048A JP4880688B2 (en) | 2005-08-02 | 2006-07-27 | Mixing eductor |
DE200660018621 DE602006018621D1 (en) | 2005-08-02 | 2006-07-27 | MIXING NOZZLE AND METHOD |
ES06788733T ES2357632T3 (en) | 2005-08-02 | 2006-07-27 | MIX AND METHOD EDUCATOR. |
PCT/US2006/029315 WO2007016297A1 (en) | 2005-08-02 | 2006-07-27 | Mixing eductor |
BRPI0614112-9A BRPI0614112A2 (en) | 2005-08-02 | 2006-07-27 | mixing puller |
CN2006800285512A CN101237919B (en) | 2005-08-02 | 2006-07-27 | Mixing eductor |
AT06788733T ATE490020T1 (en) | 2005-08-02 | 2006-07-27 | MIXING NOZZLE AND METHOD |
KR1020087004994A KR20080058331A (en) | 2005-08-02 | 2006-07-27 | Mixing eductor |
CA 2621361 CA2621361A1 (en) | 2005-08-02 | 2006-07-27 | Mixing eductor |
US11/997,641 US7954507B2 (en) | 2005-08-02 | 2006-07-27 | Mixing eductor |
AU2006275731A AU2006275731B8 (en) | 2005-08-02 | 2006-07-27 | Mixing eductor |
EP20060788733 EP1912728B1 (en) | 2005-08-02 | 2006-07-27 | Mixing eductor and method |
US13/154,197 US8336569B2 (en) | 2005-08-02 | 2011-06-06 | Mixing eductor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US11/195,052 US20070028980A1 (en) | 2005-08-02 | 2005-08-02 | Mixing eductor |
Publications (1)
Publication Number | Publication Date |
---|---|
US20070028980A1 true US20070028980A1 (en) | 2007-02-08 |
Family
ID=37232887
Family Applications (3)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/195,052 Abandoned US20070028980A1 (en) | 2005-08-02 | 2005-08-02 | Mixing eductor |
US11/997,641 Active 2027-06-16 US7954507B2 (en) | 2005-08-02 | 2006-07-27 | Mixing eductor |
US13/154,197 Active 2026-09-15 US8336569B2 (en) | 2005-08-02 | 2011-06-06 | Mixing eductor |
Family Applications After (2)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US11/997,641 Active 2027-06-16 US7954507B2 (en) | 2005-08-02 | 2006-07-27 | Mixing eductor |
US13/154,197 Active 2026-09-15 US8336569B2 (en) | 2005-08-02 | 2011-06-06 | Mixing eductor |
Country Status (12)
Country | Link |
---|---|
US (3) | US20070028980A1 (en) |
EP (1) | EP1912728B1 (en) |
JP (1) | JP4880688B2 (en) |
KR (1) | KR20080058331A (en) |
CN (1) | CN101237919B (en) |
AT (1) | ATE490020T1 (en) |
AU (1) | AU2006275731B8 (en) |
BR (1) | BRPI0614112A2 (en) |
CA (1) | CA2621361A1 (en) |
DE (1) | DE602006018621D1 (en) |
ES (1) | ES2357632T3 (en) |
WO (1) | WO2007016297A1 (en) |
Cited By (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100132814A1 (en) * | 2005-08-11 | 2010-06-03 | Johnsondiversey, Inc. | Two eductor / four-way selector valve assembly |
USD666868S1 (en) | 2005-08-12 | 2012-09-11 | Diversey, Inc. | Multi-station liquid dispensing apparatus |
US8584716B2 (en) | 2005-08-11 | 2013-11-19 | Diversey, Inc. | Multi-station liquid dispensing apparatus with automatic selection of proper flow rate |
US20150253211A1 (en) * | 2014-03-06 | 2015-09-10 | Tk Holdings Inc. | Force-based detection systems and methods |
US20160074819A1 (en) * | 2013-11-30 | 2016-03-17 | John Boticki | Individualized flow regulation system and method |
US20160361731A1 (en) * | 2015-06-11 | 2016-12-15 | Amram Levy | Compact dispenser for chemicals and other concentrated liquids |
CN110446547A (en) * | 2017-04-05 | 2019-11-12 | 株式会社Toshin | Micro bubble generation device and shower nozzle |
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---|---|---|---|---|
EP2644279A1 (en) | 2009-06-17 | 2013-10-02 | S.C. Johnson & Son, Inc. | Handheld device for dispensing fluids |
US8459506B2 (en) | 2010-04-07 | 2013-06-11 | Diversey, Inc. | Dispensing assembly with shut off valve, backflow preventer, and methods of operating the same |
US9321908B2 (en) | 2011-03-07 | 2016-04-26 | Hercules Incorporated | Methods for dispersing water soluble polymer powder |
ITRM20110384A1 (en) * | 2011-07-20 | 2013-01-21 | Seko Spa | DISCONNECTION VALVE WITH FLEXIBLE MEMBRANE, IN PARTICULAR FOR PREVENTION OF THE REFLOW. |
US9706786B2 (en) * | 2011-12-15 | 2017-07-18 | Lingyu Dong | Air inlet arrangement for ice cream or yogurt machine |
DE102013200004A1 (en) * | 2013-01-02 | 2014-07-03 | Siemens Aktiengesellschaft | Nozzle for mixing an ore-containing suspension with a gas |
US9605625B2 (en) * | 2013-12-19 | 2017-03-28 | Continental Automotive Systems, Inc. | High performance vacuum venturi pump |
USD795631S1 (en) | 2015-05-01 | 2017-08-29 | The Baby Barista Company | Apparatus for preparing ingredients for a baby bottle |
WO2016179052A1 (en) | 2015-05-01 | 2016-11-10 | The Baby Barista Company | Apparatus and method for preparing ingredients for a baby bottle using a concentrated solution |
US10611966B2 (en) | 2017-06-21 | 2020-04-07 | Duke Technologies, Llc | Pyrolysis reactor system and method |
US11491500B2 (en) | 2019-10-11 | 2022-11-08 | Delaware Capital Formation, Inc. | Portable chemical dispenser and method of using same |
CN115382413A (en) * | 2022-09-26 | 2022-11-25 | 青岛涌源水务环境科技有限公司 | Sterile active oxygen water, application thereof in nonreactive cultivation, preparation method and system |
US12119669B1 (en) | 2023-12-24 | 2024-10-15 | Wireless Photonics, Llc | Method and/or system for conversion of laser energy to electrical energy |
Citations (12)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3263702A (en) * | 1964-04-06 | 1966-08-02 | Bendix Corp | De-icer valve |
US3906996A (en) * | 1973-09-24 | 1975-09-23 | Depass Dennis | Breathing therapy aid |
US5072599A (en) * | 1991-03-13 | 1991-12-17 | Simone John J | Air tube control for frozen dessert machine |
US5159958A (en) * | 1991-07-18 | 1992-11-03 | Hydro Systems Company | Chemical eductor with integral elongated air gap |
US5253677A (en) * | 1991-07-18 | 1993-10-19 | Hydro Systems Company | Chemical eductor with integral elongated air gap |
US5522419A (en) * | 1995-06-26 | 1996-06-04 | Hydro Systems Company | Chemical eductor with integral elongated air gap |
US5758691A (en) * | 1996-04-17 | 1998-06-02 | The United States Of America As Represented By The Secretary Of The Navy | Self-sealing mixing valve |
US5862829A (en) * | 1997-02-20 | 1999-01-26 | Hydor Systems Company | Air gap eductor |
US5927338A (en) * | 1996-04-18 | 1999-07-27 | S.C. Johnson Commercial Markets, Inc. | Mixing eductor |
US6098662A (en) * | 1998-11-06 | 2000-08-08 | Advanced Pressure Technology, Inc. | Vacuum generator with incorporated check valve |
US6240983B1 (en) * | 2000-03-30 | 2001-06-05 | Knight, Inc. | Anti-foam splash-proof venturi |
US20030034078A1 (en) * | 2001-08-16 | 2003-02-20 | Richard Haas | Back flow preventing eductor |
Family Cites Families (7)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3298669A (en) * | 1964-09-23 | 1967-01-17 | Dow Chemical Co | Eductor mixing apparatus |
US4634559A (en) * | 1984-02-29 | 1987-01-06 | Aluminum Company Of America | Fluid flow control process |
US5839474A (en) * | 1996-01-19 | 1998-11-24 | Sc Johnson Commercial Markets, Inc. | Mix head eductor |
US5673725A (en) * | 1996-06-10 | 1997-10-07 | Knight Equipment International, Inc. | Air gap device with interchangeable parts |
US6623154B1 (en) * | 2000-04-12 | 2003-09-23 | Premier Wastewater International, Inc. | Differential injector |
IL148994A (en) | 2002-04-04 | 2009-02-11 | Shai Amisar | Intravenous catheter assembly |
EP1353012A1 (en) | 2002-04-09 | 2003-10-15 | JohnsonDiversey, Inc. | Eductor |
-
2005
- 2005-08-02 US US11/195,052 patent/US20070028980A1/en not_active Abandoned
-
2006
- 2006-07-27 ES ES06788733T patent/ES2357632T3/en active Active
- 2006-07-27 US US11/997,641 patent/US7954507B2/en active Active
- 2006-07-27 CA CA 2621361 patent/CA2621361A1/en not_active Abandoned
- 2006-07-27 BR BRPI0614112-9A patent/BRPI0614112A2/en not_active IP Right Cessation
- 2006-07-27 AU AU2006275731A patent/AU2006275731B8/en not_active Expired - Fee Related
- 2006-07-27 WO PCT/US2006/029315 patent/WO2007016297A1/en active Application Filing
- 2006-07-27 EP EP20060788733 patent/EP1912728B1/en active Active
- 2006-07-27 KR KR1020087004994A patent/KR20080058331A/en not_active Application Discontinuation
- 2006-07-27 JP JP2008525048A patent/JP4880688B2/en active Active
- 2006-07-27 DE DE200660018621 patent/DE602006018621D1/en active Active
- 2006-07-27 CN CN2006800285512A patent/CN101237919B/en active Active
- 2006-07-27 AT AT06788733T patent/ATE490020T1/en not_active IP Right Cessation
-
2011
- 2011-06-06 US US13/154,197 patent/US8336569B2/en active Active
Patent Citations (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3263702A (en) * | 1964-04-06 | 1966-08-02 | Bendix Corp | De-icer valve |
US3906996A (en) * | 1973-09-24 | 1975-09-23 | Depass Dennis | Breathing therapy aid |
US5072599A (en) * | 1991-03-13 | 1991-12-17 | Simone John J | Air tube control for frozen dessert machine |
US5159958A (en) * | 1991-07-18 | 1992-11-03 | Hydro Systems Company | Chemical eductor with integral elongated air gap |
US5253677A (en) * | 1991-07-18 | 1993-10-19 | Hydro Systems Company | Chemical eductor with integral elongated air gap |
US5522419A (en) * | 1995-06-26 | 1996-06-04 | Hydro Systems Company | Chemical eductor with integral elongated air gap |
US5758691A (en) * | 1996-04-17 | 1998-06-02 | The United States Of America As Represented By The Secretary Of The Navy | Self-sealing mixing valve |
US5927338A (en) * | 1996-04-18 | 1999-07-27 | S.C. Johnson Commercial Markets, Inc. | Mixing eductor |
US6279598B1 (en) * | 1996-04-18 | 2001-08-28 | S. C. Johnson Commercial Markets, Inc. | Mixing eductor |
US5862829A (en) * | 1997-02-20 | 1999-01-26 | Hydor Systems Company | Air gap eductor |
US6098662A (en) * | 1998-11-06 | 2000-08-08 | Advanced Pressure Technology, Inc. | Vacuum generator with incorporated check valve |
US6240983B1 (en) * | 2000-03-30 | 2001-06-05 | Knight, Inc. | Anti-foam splash-proof venturi |
US20030034078A1 (en) * | 2001-08-16 | 2003-02-20 | Richard Haas | Back flow preventing eductor |
Cited By (14)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US9732862B2 (en) | 2005-08-11 | 2017-08-15 | Diversey, Inc. | Two educator/four-way selector valve assembly |
US10690254B2 (en) | 2005-08-11 | 2020-06-23 | Diversey, Inc. | Two eductor / four-way selector valve assembly |
US8584716B2 (en) | 2005-08-11 | 2013-11-19 | Diversey, Inc. | Multi-station liquid dispensing apparatus with automatic selection of proper flow rate |
US9174179B2 (en) | 2005-08-11 | 2015-11-03 | Diversey, Inc. | Multi-station liquid dispensing apparatus with automatic selection of proper flow rate |
US8186383B2 (en) | 2005-08-11 | 2012-05-29 | Diversey, Inc. | Two eductor/four-way selector valve assembly |
US9809443B2 (en) | 2005-08-11 | 2017-11-07 | Diversey, Inc. | Multi-station liquid dispensing apparatus with automatic selection of proper flow rate |
US20100132814A1 (en) * | 2005-08-11 | 2010-06-03 | Johnsondiversey, Inc. | Two eductor / four-way selector valve assembly |
USD666868S1 (en) | 2005-08-12 | 2012-09-11 | Diversey, Inc. | Multi-station liquid dispensing apparatus |
US10786795B2 (en) * | 2013-11-30 | 2020-09-29 | John Boticki | Individualized flow regulation system and method |
US20160074819A1 (en) * | 2013-11-30 | 2016-03-17 | John Boticki | Individualized flow regulation system and method |
US20150253211A1 (en) * | 2014-03-06 | 2015-09-10 | Tk Holdings Inc. | Force-based detection systems and methods |
US9573100B2 (en) * | 2015-06-11 | 2017-02-21 | Amram Levy | Compact dispenser for chemicals and other concentrated liquids |
US20160361731A1 (en) * | 2015-06-11 | 2016-12-15 | Amram Levy | Compact dispenser for chemicals and other concentrated liquids |
CN110446547A (en) * | 2017-04-05 | 2019-11-12 | 株式会社Toshin | Micro bubble generation device and shower nozzle |
Also Published As
Publication number | Publication date |
---|---|
BRPI0614112A2 (en) | 2011-03-09 |
EP1912728A1 (en) | 2008-04-23 |
AU2006275731B2 (en) | 2011-04-14 |
CN101237919A (en) | 2008-08-06 |
US7954507B2 (en) | 2011-06-07 |
US20080223448A1 (en) | 2008-09-18 |
JP4880688B2 (en) | 2012-02-22 |
US8336569B2 (en) | 2012-12-25 |
ATE490020T1 (en) | 2010-12-15 |
ES2357632T3 (en) | 2011-04-28 |
JP2009503365A (en) | 2009-01-29 |
AU2006275731B8 (en) | 2011-06-09 |
EP1912728B1 (en) | 2010-12-01 |
AU2006275731A1 (en) | 2007-02-08 |
DE602006018621D1 (en) | 2011-01-13 |
KR20080058331A (en) | 2008-06-25 |
US20110232774A1 (en) | 2011-09-29 |
CN101237919B (en) | 2012-10-10 |
CA2621361A1 (en) | 2007-02-08 |
WO2007016297A1 (en) | 2007-02-08 |
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Owner name: JOHNSONDIVERSEY, INC., WISCONSIN Free format text: ASSIGNMENT OF ASSIGNORS INTEREST;ASSIGNORS:LOHR, JAMES H.;BOTICKI, JOHN A.;BOURNOVILLE, JAMES L.;REEL/FRAME:016856/0874;SIGNING DATES FROM 20050630 TO 20050802 |
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STCB | Information on status: application discontinuation |
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