US2798698A - Combined injection and blending apparatus - Google Patents

Combined injection and blending apparatus Download PDF

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Publication number: US2798698A
Authority: US; United States
Prior art keywords: housing; rotor; shaft; blending; combined injection
Prior art date: 1954-12-27
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.): Expired - Lifetime

Application number

US477904A

Inventor

William P Dooley

Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)

Akzo Nobel UK PLC

Original Assignee

American Viscose Corp

Priority date (The priority date 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 date listed.)

1954-12-27

Filing date

1954-12-27

Publication date

1957-07-09

1954-12-27 Application filed by American Viscose Corp filed Critical American Viscose Corp

1954-12-27 Priority to US477904A priority Critical patent/US2798698A/en

1957-07-09 Application granted granted Critical

1957-07-09 Publication of US2798698A publication Critical patent/US2798698A/en

1974-07-09 Anticipated expiration legal-status Critical

1981-04-15 Assigned to WALTER E. HELLER & COMPANY, INC., A CORP. OF DEL. reassignment WALTER E. HELLER & COMPANY, INC., A CORP. OF DEL. AGREEMENT WHEREBY AETNA RELEASES AVTEX FROM ALL MORTAGES AND SECURITY INTERESTS IN SAID INVENTIONS AS OF JANUARY 11,1979, AND ASSIGNS TO ASSIGNEE THE ENTIRE INTEREST IN SAID MORTAGE AGREEMENT TO ASSIGNEE (SEE RECORDS FOR DETAILS). Assignors: AETNA BUSINESS CREDIT, INC., A CORP. OF N.Y., AVTEX FIBERS, INC, A CORP. OF NY, KELLOGG CREDIT CORP., A CORP. OF DEL.

1981-04-15 Assigned to KELLOGG CREDIT CORPORATION A DE CORP. reassignment KELLOGG CREDIT CORPORATION A DE CORP. AGREEMENT WHEREBY SAID HELLER AND RAYONIER RELEASES ALL MORTGAGES AND SECURITY INTERESTS HELD BY AVTEX ON APRIL 28, 1978, AND JAN. 11, 1979, RESPECTIVELY AND ASSIGNS ITS ENTIRE INTEREST IN SAID MORT-AGAGE AGREEMENT TO ASSIGNEE (SEE RECORD FOR DETAILS) Assignors: AVTEX FIBERS INC., A NY CORP., ITT RAYONIER INCORPORATED, A DE CORP., WALTER E. HELLER & COMPANY, INC. A NY CORP.

1981-04-15 Assigned to BALBOA INSURANCE COMPANY C/O THE PAUL REVERE EQUITY MANAGEMENT COMPANY, PAUL REVERE LIFE INSURANCE COMPANY THE C/O THE PAUL REVERE EQUITY MANAGEMENT COMPANY, JOHN HANCOCK MUTUAL LIFE INSURANCE COMPANY, WESTERN AND SOUTHERN LIFE INSURANCE COMPANY THE C/O NEW ENGLAND MUTUAL LIFE INSURANCE COMPANY, PROVIDENT ALLIANCE LIFE INSURANCE COMPANY C/O THE PAUL REVERE EQUITY MANAGEMENT COMPANY, NEW ENGLAND MUTUAL LIFE INSURANCE COMPANY reassignment BALBOA INSURANCE COMPANY C/O THE PAUL REVERE EQUITY MANAGEMENT COMPANY AS SECURITY FOR INDEBTEDNESS RECITED ASSIGNOR GRANTS , BARGAINS, MORTGAGES, PLEDGES, SELLS AND CREATES A SECURITY INTEREST WITH A LIEN UNDER SAID PATENTS, SUBJECT TO CONDITIONS RECITED. (SEE DOCUMENT FOR DETAILS). Assignors: AVTEX FIBERS INC. A NY CORP.

Status Expired - Lifetime legal-status Critical Current

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Classifications

- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01D—MECHANICAL METHODS OR APPARATUS IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS
- D01D1/00—Treatment of filament-forming or like material
- D01D1/06—Feeding liquid to the spinning head
- D01D1/065—Addition and mixing of substances to the spinning solution or to the melt; Homogenising
- 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
- B01F33/80—Mixing plants; Combinations of mixers
- B01F33/82—Combinations of dissimilar mixers

Definitions

This invention relates to liquid injection and blending apparatus, and more particularly to a device for injecting a secondary stream of viscose into a primary stream of viscose.
a primary object of the invention therefore is to provide a combined injection apparatus and blender which is highly eflicient in its blending characteristics and which at the same time eliminates pressure drop through the blender.
a further object of the invention is to provide a combined injection blender for viscous liquids which is selfcleaning.
a still further object of the invention is to provide an improved injection blender having no stagnant areas.
a still further object of the invention is to provide an improved injection blender having a two-stage blending element mounted on a common shaft, the first stage comprising a high speed agitator of relatively small diameter and the second stage comprising a series of rotors and stators of relatively larger diameter.
a still further object of the invention is to provide a combined injection blender for viscose in which one of the rotor elements acts as a centrifugal pump to offset pressure drop in the device.
Figure 1 is a longitudinal sectional view through a combined injection blender constructed in accordance with the present invention
Figure 2 is an enlarged sectional view showing the injection device used in the construction of Figure 1;
Figure 3 is a perspective of one of the rotor elements.
Figure 4 is a longitudinal sectional view of a modified form of combined injection blender.
the invention comprises essentially the provision of a primary fluid housing having a plurality of alternating stator and rotor elements therein.
the rotor shaft is provided with a preliminary agitating element which initially directs the secondary stream in all directions through a preliminary mixing chamber.
the secondary stream is delivered to a zone immediately in front of and in line with the axis of the preliminary agitator.
the primary flow takes place axially through the rotor and stator elements and in an other form the last rotor discharges the mixed primary and secondary liquids tangentially through a discharge port at right angles to the axis of the rotor shaft.
the apparatus shown in Figures 1-3 comprises a housing 10 having a relatively large circular bore.
the intake end of housing 10 is connected to the intake elbow 11 by means of a flanged connection 12 having a suitable gasket 13.
the outlet end of housing 10 connects to curved outlet elbow 14 through flanged connection 15 having gasket 16.
the blending or mixing structure is completely contained in housing 10 and comprises a rotor shaft 17 which extends through elbow 14 and is journaled in outboard bearing assembly 18 and inboard bushing 19.
a stufling box 20 is provided between the bearing assembly 18 and the elbow 14 as shown in Figure l.
the extreme end of shaft 17 carries a high speed agitating element 21 having a hollow construction with a fluid shearing surface 22.
housing 10 The discharge end of housing 10 is counterbored to receive in sequence the first stator element 25 which carries the bushing 19; the next stator element 26 which is of slightly larger diameter, and retains a spacing collar 27; and the third stator element 28 of still larger diameter which in turn retains a spacing collar 29. All of the stators and collars are held in position by the flanged connection 15.
Each stator contains a series of perforations preferably arranged in concentric rows to permit passage of the liquid and to break up the initially mixed streams into relatively fine streams.
Shaft 17 carries two rotors 30 and 31 which in the present instance are of identical construction as shown in Figure 3.
Each rotor has a solid hub that is keyed to shaft 17 by set screws 32, 32 and the periphery of the rotors comprises a plurality of spokes 33, 33 having a substantially rectangular cross section.
I provide three sets of vanes 34, 34 which act as shear elements to vigorously break up and mix the individual streams delivered through the perforations of the stators.
the first rotor 30 is positioned between stators 25 and 26 whereas the second rotor 31 is positioned between stators 26 and 28.
the primary liquid stream such as viscose is delivered to housing 10 through inlet 11.
the secondary liquid such as a delusterant or a coloring fluid is delivered through the injector assembly connected to inlet 11 so that the tip or discharge end of the injector terminates in close axial spaced relation to the agitator 21.
the injector assembly ( Figure 2) comprises a housing 41 to which the secondary fluid is carried by means of a pipe or conduit 42.
a spring loaded valve 43 extends axially through housing 41 and prevents backing up of the primary fluid into housing 41 should the pressure in the housing fall below the pressure of the primary stream.
Valve stem 43a extends through the gland assembly 44 and is adjustably spring loaded by means of a compressing spring 45 and nuts 46, 47.
the primary liquid stream is delivered in an axial direction to the blending elements in housing 10 and that the secondary stream is likewise delivered in line with the primary stream to a zone directly at the intake of the agitating element 21.
This device turns at a speed of approximately 3500 R. P. M. so that there is vigorous preliminary agitation in the inlet zone of chamber 10.
the initially mixed streams then pass through the various rotor and stator stages and are discharged axially in a completely homogeneous state through the discharge elbow 14.
FIG. 4 A modified form of combined injection blender is shown in Figure 4 which is particularly useful where minimum pressure drop through the blender is indicated.
the housing has an inlet flanged coupling 51 through which the primary stream enters the housing.
the secondary stream is delivered to a point or zone directly in front of the preliminary agitator 52 through an injector nozzle 53.
the zone at which the secondary fluid is discharged is the same as that shown in Figure 1 in the modified form, the secondary fluid enters housing 50 from the side through a boss 54 rather than in an axial direction.
the blending stages in the form of Figure 4 comprise the first stator 55 separated from the second stator 56 by means of a collar 57.
This form has only two stators, however, and the shaft 58 is not journaled in either of the stators.
the first rotor 59 is positioned between stators 55 and 56, and the second rotor 60 is in line with the discharge fitting 61 at right angles to the axis of the rotors and shaft.
the rotor 60 functions in addition to its mixing action as a centrifugal pump to boost the discharge pressure from the blender and thus eliminate the necessity for installing a secondary booster pump in the line should the pressure drop be considered excessive.
This tangential rather than axial outlet also permits the entire shaft and rotor assembly to be carried in very adequate outboard supports.
the flange joint assembly 65 comprises an intermediate cap 66 for the housing 50 which is provided with a bushing 67 that may be lubricated by the viscose or liquid in chamber 50.
the bearing housing 68 is also supported at the flange assembly 65 by the connecting bolts 69, 69.
Annular ball bearing assemblies 70, 70 are positioned in axial spaced relation in housing 68 to carry the radial loads imposed by the weight of the agitator 52 and the rotors 59 and 60.
the inner cap 71 having a lubricant seal 72 is secured to the housing 68 by cap screws 73, 73, and the outer cap 74 having a lubricant seal 75 is connected to the housing 68 by cap screws 76, 76.
Lubricant is introduced to the enlarged bore of the housing and thence to the bearings 70 through a grease fitting 77.
the inboard bearing is retained on shaft 58 by means of a nut 78 and lock washer 79.
the combined injection blender as described above, is admirably suited for use with relatively thick viscous liquids such as viscose. It is simple, effective and the two stages provide exceptionally effective blending for the addition of any desired secondary fluid which may be an additive intended to accomplish an improved physical characteristic in the extruded filaments, a delusterant or a pigmented mixture for coloring purposes only. r
the design may be modified to operate as a booster pump if the elimination of pressure drop through the device is important. Low cost, adequate capacity and elimination of stagnant areas together with very complete blending are important features of the design.
a combined injection blender comprising a housing, means for admitting a first liquid to one end of said housing, a first-stage rotary agitator in said housing being of substantially smaller diameter than the bore of the housing, a second-stage agitator in said housing, said secondstage agitator comprising a plurality of rotors and interspersed stators of substantially the same diameter as the bore of the housing, a common shaft on which said first and second-stage agitators are mounted, and a secondary injection nozzle terminating in close axial spaced relation to the first-stage agitator at a point between said agitator and said first liquid injection means.
Apparatus of claim 1 comprising means for lubricating the shaft with the material being blended.

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Engineering & Computer Science (AREA)
Chemical & Material Sciences (AREA)
Chemical Kinetics & Catalysis (AREA)
Mechanical Engineering (AREA)
Textile Engineering (AREA)
Processing And Handling Of Plastics And Other Materials For Molding In General (AREA)
Accessories For Mixers (AREA)

Description

I w. P. DOOLEY COMBINED INJECTION AND BLENDING APPARATUS Fil ed Dec. 27, 1954 July 9, 1957 2 Sheets-Sheet 1 an \N July 9, 1957 w. P. DOOLE'Y 2,798,698

COMBINED INJECTION AND BLENDING APPARATUS I Filed Dec. 27', 1954 2 Sheets-Sheet 2 United States Patent C) COMBINED INJECTION AND BLENDING APPARATUS William P. Dooley, South Charleston, W. Va., assignor to American Viscose Corporation, Philadelphia, Pa., a corporation of Delaware Application December 27, 1954, Serial No. 477,904

9 Claims. (Cl. 259-9) This invention relates to liquid injection and blending apparatus, and more particularly to a device for injecting a secondary stream of viscose into a primary stream of viscose.

The problems connected with the injection of one stream of a liquid such as viscose into a second viscose stream are, to a considerable extent, influenced by the nature of the liquid itself. Such problems have to do with the elimination of dead spots where the viscose may become stagnant or may have a tendency to set up. In addition the viscous nature of the fluid may cause a considerable pressure drop through the blending apparatus. This condition is highly undesirable since it requires one or more booster pumps in the line. The very nature of viscose is such that the injected stream tends to resist complete mixing and therefore relatively violent agitation and blending is required to achieve homogeneity.

A primary object of the invention therefore is to provide a combined injection apparatus and blender which is highly eflicient in its blending characteristics and which at the same time eliminates pressure drop through the blender.

A further object of the invention is to provide a combined injection blender for viscous liquids which is selfcleaning.

A still further object of the invention is to provide an improved injection blender having no stagnant areas.

A still further object of the invention is to provide an improved injection blender having a two-stage blending element mounted on a common shaft, the first stage comprising a high speed agitator of relatively small diameter and the second stage comprising a series of rotors and stators of relatively larger diameter.

A still further object of the invention is to provide a combined injection blender for viscose in which one of the rotor elements acts as a centrifugal pump to offset pressure drop in the device.

Further objects will be apparent from the specification and drawings in which:

Figure 1 is a longitudinal sectional view through a combined injection blender constructed in accordance with the present invention;

Figure 2 is an enlarged sectional view showing the injection device used in the construction of Figure 1;

Figure 3 is a perspective of one of the rotor elements; and

Figure 4 is a longitudinal sectional view of a modified form of combined injection blender.

The invention comprises essentially the provision of a primary fluid housing having a plurality of alternating stator and rotor elements therein. The rotor shaft is provided with a preliminary agitating element which initially directs the secondary stream in all directions through a preliminary mixing chamber. The secondary stream is delivered to a zone immediately in front of and in line with the axis of the preliminary agitator. In one form of the apparatus, the primary flow takes place axially through the rotor and stator elements and in an other form the last rotor discharges the mixed primary and secondary liquids tangentially through a discharge port at right angles to the axis of the rotor shaft.

Referring now more particularly to the drawings, the apparatus shown in Figures 1-3 comprises a housing 10 having a relatively large circular bore. The intake end of housing 10 is connected to the intake elbow 11 by means of a flanged connection 12 having a suitable gasket 13. The outlet end of housing 10 connects to curved outlet elbow 14 through flanged connection 15 having gasket 16. The blending or mixing structure is completely contained in housing 10 and comprises a rotor shaft 17 which extends through elbow 14 and is journaled in outboard bearing assembly 18 and inboard bushing 19. A stufling box 20 is provided between the bearing assembly 18 and the elbow 14 as shown in Figure l. The extreme end of shaft 17 carries a high speed agitating element 21 having a hollow construction with a fluid shearing surface 22. This element is well known as an independent mixing device and forms no part of the present invention apart from its combination with the remaining structure. The discharge end of housing 10 is counterbored to receive in sequence the first stator element 25 which carries the bushing 19; the next stator element 26 which is of slightly larger diameter, and retains a spacing collar 27; and the third stator element 28 of still larger diameter which in turn retains a spacing collar 29. All of the stators and collars are held in position by the flanged connection 15. Each stator contains a series of perforations preferably arranged in concentric rows to permit passage of the liquid and to break up the initially mixed streams into relatively fine streams. Shaft 17 carries two rotors 30 and 31 which in the present instance are of identical construction as shown in Figure 3. Each rotor has a solid hub that is keyed to shaft 17 by set

screws

32, 32 and the periphery of the rotors comprises a plurality of

spokes

33, 33 having a substantially rectangular cross section. In addition to the spokes, I provide three sets of

vanes

34, 34 which act as shear elements to vigorously break up and mix the individual streams delivered through the perforations of the stators. As shown in Figure l, the first rotor 30 is positioned between stators 25 and 26 whereas the second rotor 31 is positioned between stators 26 and 28.

The primary liquid stream such as viscose is delivered to housing 10 through inlet 11. The secondary liquid such as a delusterant or a coloring fluid is delivered through the injector assembly connected to inlet 11 so that the tip or discharge end of the injector terminates in close axial spaced relation to the agitator 21. The injector assembly (Figure 2) comprises a housing 41 to which the secondary fluid is carried by means of a pipe or conduit 42. A spring loaded valve 43 extends axially through housing 41 and prevents backing up of the primary fluid into housing 41 should the pressure in the housing fall below the pressure of the primary stream. Valve stem 43a extends through the gland assembly 44 and is adjustably spring loaded by means of a compressing spring 45 and

nuts

46, 47. It will thus be understood that the primary liquid stream is delivered in an axial direction to the blending elements in housing 10 and that the secondary stream is likewise delivered in line with the primary stream to a zone directly at the intake of the agitating element 21. This device turns at a speed of approximately 3500 R. P. M. so that there is vigorous preliminary agitation in the inlet zone of chamber 10. The initially mixed streams then pass through the various rotor and stator stages and are discharged axially in a completely homogeneous state through the discharge elbow 14.

A modified form of combined injection blender is shown in Figure 4 which is particularly useful where minimum pressure drop through the blender is indicated. In this form the housing has an inlet flanged coupling 51 through which the primary stream enters the housing. The secondary stream is delivered to a point or zone directly in front of the preliminary agitator 52 through an injector nozzle 53. However, although the zone at which the secondary fluid is discharged is the same as that shown in Figure 1 in the modified form, the secondary fluid enters housing 50 from the side through a boss 54 rather than in an axial direction. The blending stages in the form of Figure 4 comprise the first stator 55 separated from the second stator 56 by means of a collar 57. This form has only two stators, however, and the shaft 58 is not journaled in either of the stators. The first rotor 59 is positioned between

stators

55 and 56, and the second rotor 60 is in line with the discharge fitting 61 at right angles to the axis of the rotors and shaft. In this way it will be seen that the rotor 60 functions in addition to its mixing action as a centrifugal pump to boost the discharge pressure from the blender and thus eliminate the necessity for installing a secondary booster pump in the line should the pressure drop be considered excessive. This tangential rather than axial outlet also permits the entire shaft and rotor assembly to be carried in very adequate outboard supports.

The flange joint assembly 65 comprises an intermediate cap 66 for the housing 50 which is provided with a bushing 67 that may be lubricated by the viscose or liquid in chamber 50. The bearing housing 68 is also supported at the flange assembly 65 by the connecting

bolts

69, 69. Annular

ball bearing assemblies

70, 70 are positioned in axial spaced relation in housing 68 to carry the radial loads imposed by the weight of the agitator 52 and the rotors 59 and 60. The inner cap 71 having a lubricant seal 72 is secured to the housing 68 by

cap screws

73, 73, and the outer cap 74 having a lubricant seal 75 is connected to the housing 68 by

cap screws

76, 76. Lubricant is introduced to the enlarged bore of the housing and thence to the bearings 70 through a grease fitting 77. The inboard bearing is retained on shaft 58 by means of a nut 78 and lock washer 79.

The combined injection blender, as described above, is admirably suited for use with relatively thick viscous liquids such as viscose. It is simple, effective and the two stages provide exceptionally effective blending for the addition of any desired secondary fluid which may be an additive intended to accomplish an improved physical characteristic in the extruded filaments, a delusterant or a pigmented mixture for coloring purposes only. r

Depending upon the particular installation, the design may be modified to operate as a booster pump if the elimination of pressure drop through the device is important. Low cost, adequate capacity and elimination of stagnant areas together with very complete blending are important features of the design.

Having thus described my invention, I claim:

1. A combined injection blender comprising a housing, means for admitting a first liquid to one end of said housing, a first-stage rotary agitator in said housing being of substantially smaller diameter than the bore of the housing, a second-stage agitator in said housing, said secondstage agitator comprising a plurality of rotors and interspersed stators of substantially the same diameter as the bore of the housing, a common shaft on which said first and second-stage agitators are mounted, and a secondary injection nozzle terminating in close axial spaced relation to the first-stage agitator at a point between said agitator and said first liquid injection means.

2. Apparatus in accordance with claim 1 in which the shaft is partially journaled in one of the stators.

3. Apparatus in accordance with claim 1 in which the shaft is cantilever journaled exteriorly of the housing.

4. Apparatus in accordance with claim 1 in which the injection nozzle enters the housing concentrically and axially to the shaft.

5. Apparatus in accordance with claim 1 in which the injector nozzle enters the housing at right angles to the centerline of the shaft.

6. Apparatus in accordance with claim 1 in which the housing has a discharge conduit extending in an axial direction therefrom.

7. Apparatus in accordance with claim 1 in which the housing has a tangential discharge conduit in line with one of the rotors.

8. Apparatus in accordance with claim 1 in which the rotors have peripheral spokes of rectangular cross section, and a plurality of radially extending vanes substantially wider than the width of the spokes.

9. Apparatus of claim 1 comprising means for lubricating the shaft with the material being blended.

References Cited in the file of this patent UNITED STATES PATENTS 338,121 Wallace Mar. 16, 1886 1,948,871 Quehl Feb. 27, 1934 2,146,776 Strominger Feb. 14, 1939 2,240,841 Flynn May 6, 1941 2,287,067 Schmidt June 23, 1942

US477904A 1954-12-27 1954-12-27 Combined injection and blending apparatus Expired - Lifetime US2798698A (en)

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Application Number	Priority Date	Filing Date	Title
US477904A US2798698A (en)	1954-12-27	1954-12-27	Combined injection and blending apparatus

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
US477904A US2798698A (en)	1954-12-27	1954-12-27	Combined injection and blending apparatus

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US2798698A true US2798698A (en)	1957-07-09

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US2955319A (en) *	1957-10-07	1960-10-11	American Viscose Corp	Gear type blender assembly
US2960318A (en) *	1956-05-15	1960-11-15	Separation L Emulsion Et Le Me	Mixing, emulsifying, homogenizing and the like machines
US2961223A (en) *	1957-04-25	1960-11-22	American Viscose Corp	Additive injecting and blending apparatus for filament spinning
US3005576A (en) *	1958-04-22	1961-10-24	Semco Res Inc	Mixing and dispensing apparatus
US4039149A (en) *	1976-06-09	1977-08-02	The B. F. Goodrich Company	Lump breaker apparatus for reactor tank
US5405094A (en) *	1994-01-31	1995-04-11	Poser; Kimberly	Multi-staged size reduction machine
US5450368A (en) *	1993-12-28	1995-09-12	Three Bond Co., Ltd.	Two liquid type mixer
US5810474A (en) *	1991-07-08	1998-09-22	Hidalgo; Oscar Mario Guagnelli	Apparatus for treating materials by creating a cavitation zone downstream of a rotating baffle assembly
US5863120A (en) *	1997-01-31	1999-01-26	Beloit Technologies, Inc.	Medium consistency liquid mixture
US5863587A (en) *	1995-12-22	1999-01-26	Nestec S.A.	Apparatus and method for heat treating a fluid product
US5868495A (en) *	1991-07-08	1999-02-09	Hidalgo; Oscar Mario Guagnelli	Method for treating fluent materials
US6337308B1 (en)	1999-06-08	2002-01-08	Diamond Tank Rentals, Inc.	Method and apparatus for homogenizing drilling fluid in an open-loop process
US6502980B1 (en) *	2001-04-13	2003-01-07	Bematek Systems Inc	In-line homogenizer using rotors and stators in a housing for creating emulsions, suspensions and blends
US20040013032A1 (en) *	2002-07-17	2004-01-22	Itt Manufacturing Enterprise, Inc.	Method and apparatus for injecting a chemical into a process upstream of an inline mixer
US20040202043A1 (en) *	2001-03-28	2004-10-14	Fuji Photo Film Co., Ltd.	In-line mixing apparatus, process for mixing reactive chemical solutions, and process for producing microcapsules
US20050286343A1 (en) *	2004-06-18	2005-12-29	Jacques Boutet	Dynamic in-line mixing device
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Owner name: PAUL REVERE LIFE INSURANCE COMPANY THE C/O THE PAU