US3856272A - Floating mixer - Google Patents

Floating mixer Download PDF

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US3856272A
US3856272A US26085172A US3856272A US 3856272 A US3856272 A US 3856272A US 26085172 A US26085172 A US 26085172A US 3856272 A US3856272 A US 3856272A
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means
liquid
float
shaft
impeller
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R Ravitts
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AQUA-AEROBIC SYSTEMS Inc A CORP OF
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Richards of Rockford Inc
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F13/00Other mixers; Mixing plant, including combinations of mixers, e.g. of dissimilar mixers
    • B01F13/0016Movable or transportable mixing devices or plants
    • B01F13/0049Floating
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04531Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F3/04539Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04531Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F3/04602Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer
    • B01F3/04609Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements provided with stationary guiding means surrounding at least partially the stirrer with tubes surrounding the stirrer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04531Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F3/04539Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements
    • B01F2003/04553Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the introduction of the gas along the axis of the stirrer or along the stirrer elements through a conduit surrounding the stirrer axis
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F3/00Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed
    • B01F3/04Mixing, e.g. dispersing, emulsifying, according to the phases to be mixed gases or vapours with liquids
    • B01F3/04099Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids
    • B01F3/04531Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements
    • B01F2003/04659Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer
    • B01F2003/0468Introducing a gas or vapour into a liquid medium, e.g. producing aerated liquids using driven stirrers with completely immersed stirring elements characterised by the location of the place of introduction of the gas relative to the stirrer the gas being introduced above the stirrer
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F7/00Mixers with rotary stirring devices in fixed receptacles, i.e. movement of the receptacle not being meant to effect the mixing; Kneaders
    • B01F7/00008Stirrers, i.e. rotary stirring devices
    • B01F7/00233Configuration of the rotating mixing element
    • B01F7/00341Propellers, i.e. stirrers having an axial outflow, e.g. of the ship or aircraft propeller type or having means on the propeller to guide the flow
    • BPERFORMING OPERATIONS; TRANSPORTING
    • B01PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01FMIXING, e.g. DISSOLVING, EMULSIFYING, DISPERSING
    • B01F7/00Mixers with rotary stirring devices in fixed receptacles, i.e. movement of the receptacle not being meant to effect the mixing; Kneaders
    • B01F7/16Mixers with rotary stirring devices in fixed receptacles, i.e. movement of the receptacle not being meant to effect the mixing; Kneaders with stirrers rotating about a substantially vertical axis

Abstract

A floating mixer has a vertically oriented draft tube containing an impeller for directing liquid against a submerged baffle for deflecting the liquid radially in all directions. The submerged baffle may be the bottom wall of the float. A passage is provided through the center of the float for accommodating the impeller drive shaft. A shield plate at the bottom end of the passage allows a small amount of liquid to enter the passage from which it is conducted by a conduit to the parent body of liquid at a remote point. The foregoing avoids the use of a water tight bearing for the impeller shaft.

Description

United States Patent 1 [111 3,856,272 ,Ravitts Dec. 24, 1974 FLOATING MIXER Inventor: Richard B. Ravitts, Rockford, Ill. Primary Examiner-Harvey HOmSby Asszstant Examiner-Alan Cantor Asslgneel Rlchal'ds of Rockford, Attorney, Agent, or FirmHume, Clement, Brinks,

Rockford, Willian, Olds & Cook, Inc.

[22] Filed: June 8, 1972 [57] ABSTRACT 21 l. 26 l 1 App No 0 A floating mixer has a vertically oriented draft tube containing an impeller for directing liquid against a Cl 417/61 submerged baffle for deflecting the liquid radially in [51] Int. Cl BOlf 5/12 all directions, The submerged baffle may be the bot- [58] Field of Search 415/7; 259/8, 95, 96, 97; tom wall of the float.

239/182; 261/; 277/; 308/363; 417/61 A passage is provided through the center of the float 6 R f d for accommodating the impeller drive shaft. A shield [5 1 e erences plate at the bottom end of the passage allows a small UNITED STATES PATENTS amount of liquid to enter the passage from which it is 1,119,405 12/1914 Crerar 259/97 conducted by a conduit to the parent body of liquid at 2,827,268 3/1958 Staaf 259/96 a remote point. The foregoing avoids the use of a 3,416,729 Ravitts et al 1 415/7 ater bearing for the impeller shaft 3,497,185 2/1970 Dively 415/7 3,622,074 11/1971 Frohwerk 415 7 12 Claims, 2 Drawmg Flgul'es 25 &0 ',J9 Z2 l 20 LJ BACKGROUND OF THE INVENTION Motor driven devices for mixing liquids are well known. One type of mixer construction is an assembly having a motor coupled to an impeller which is supported on a fixed structure.

Since the mixer is maintained in a fixed position during operation, if the liquid level changes, problems can result. Often the position of the impeller should be adjusted with any changes in the liquid level.

Moreover, mixing devices supported by fixed structures lack mobility. If it is desired to change the location of the mixer in the liquid, in some instances the entire support must be removed, and the support assembled at the new location. Further, a fixed support makes it difficult for the mixer to be inspected and/or repaired.

Although floating mixers of the type as depicted in Bood; Pat. No. 3,365,178 are known, they produce a unidirectional flow in a confined, submerged stream.

In any device in which the motor is located on a float, special precautions must be taken to prevent liquids from damaging the motor. In floating aerators and spray devices, for example, plates and seals of different configurations are ordinarily mounted between the impeller and the motor for shielding the motor. Assuming it is desirable to mount a shield between the impeller and the motor in order to protect the motor from corrosive effects of the liquids, there is the problem of accommodating the drive shaft through the plate or shield in such a way that liquid cannot reach the motor even after wear occurs.

OBJECTS OF THE INVENTION Accordingly, it is a principal object of the invention to provide a floating mixer which readily adapts to changes in the surface level, and which circulates liquid radially in all directions from the mixing unit.

Another object of the invention is to provide such a floating mixer which may be readily moved along the surface of the liquid in order to change to any number of desired positions, and which can be readily removed from the liquid for inspection, and/or repair.

Still another object of the invention is to provide a mixer which protects the motor from corrosive effects of the liquid.

It is a further object of the present invention to provide a mixer that is readily and economically manufactured.

It is yet another object of the invention to provide a mixer which is readily installed in a lake, pond, basin,

or channel which can be readily changed in its location,

and which can be periodically removed and/or inspected and repaired without great deal of difficulty, and which is efficient in mixing and agitating.

These and further objects of the invention will become apparent from a study of the attached drawings, accompanying specification and the appended claims.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a perspective view partly broken away of a floating mixer embodying the new and improved features of the invention.

FIG. 2 is an exploded perspective view partly broken away illustrating the device of FIG. 1.

DESCRIPTION OF THE PREFERRED EMBODIMENTS OF THE INVENTION Referring now to the drawing, FIG. 1 illustrates a floating mixer in a body of liquid 13 such as a pond, canal, lake, pool, tank, and the like. A mixer is supported in the liquid by float 11 which comprises a sealed outer shell 12, the interior of which is filled with polyurethane foam 13. Hooks 15 are secured to the float 11 so that the mixer can be moored by cables (not shown) at a desired location. Although the float may assume many different shapes, a circular float provides many advantages.

The outer sealed shell 12 has a top plate 16 and a spaced bottom plate 17. Inner and outer cylindrical walls 18 and 19 enclose the sides of the shell.

A mixing unit 20 in the form of a vertically oriented cylindrical throat 22 is supported below, and spaced from the float 11 by a plurality of legs 21.

The throat acts as a propeller duct and is in the form of a cylindrical chamber 23 having upper and lower open ends. The lower portion of the chamber 20 is flared at 24 in a frusto-conical shaped draft tube. The upper open end of chamber 23 is spaced below bottom wall 17 of the float 11.

An impeller in the form of an axial flow type pump is mounted for rotation within the chamber 23. Impeller 40 is in the form of a helical blade that is rotated by drive shaft 41. Drive shaft 41 is driven by motor 44. The motor 44 is supported on motor mount 45 on bosses (not shown) secured to the top surface of the outer shell 12.

The motor 44, drive shaft 41, chamber 23, and impeller 40 are preferably mounted concentric to the circular float 11 in order to provide balance to the floating assembly. Moreover by positioning the throat 22, draft tube 20 and impeller concentrically to the float, as well as the other mentioned units, stability of the device is improved.

The inner cylindrical wall 18 forms a central passage 47 through the float 11. Motor mount 45 has a stationery plate 49 that covers the upper end of the passage 47. A diffusing plate 50 partially encloses the lower end of the passage 47.

It will be noted that the upward flow of liquid through the chamber 23 is directed against the bottom wall 17 of the shell 12. The bottom wall serves as a large baffle or detlective plate to distribute the liquid radially in all directions. If the motor is reversed, and there is downward flow of liquid, the bottom wall 17 serves to prevent cavitation of the impeller 40. During downward flow, the liquid emerging from the chamber 23 flows laterally in all directions.

The aforedescribed mixing unit presents the problem of protecting the motor, since liquid is under pressure along the drive shaft 41 by the action of impeller 40. The usual solution would be a water tight seal or bearing surrounding shaft 41. In the present invention a novel solution is provided.

As shown, diffusing plate 50 is flared downwardly into a bell 51. The bell 51 is provided with a central opening 52 through which passes the drive shaft 41.

A small clearance is provided, for example, clearance of 0.005 inches, between the sides of bell 51 and the drive shaft 41. Therefore, as liquid is forced by the impeller 40 toward or away from the float 11, a small amount of controlled bleeding of the liquid between the drive shaft 41 and the sides of opening 52 in bell 51 occurs.

Conduits 60, which can be mounted in the shell 12, conduit liquid to or from the passage 47 to a point remotely located from the mixing unit 20, so that the positive or negative pressure applied to the liquid within passage 47 by the impeller 40 is relieved to the surrounding body of liquid 13. In the device illustrated in FIG. 1, the conduits 60 are mounted at the lower portion of the passage 47 between the inner wall 18 and the outer wall 19 of the float 11.

A cone 70 may be removably mounted below the flared end portion of draft tube 20 in order to prevent erosion of the bottom of the pond and the like. The cone 70 is removable, and may be removed in the event the body of liquid is of sufficient depth. Also the cone 70 is removed if the impeller is rotated for updraft of the liquid through the chamber 23.

From the foregoing, it is believed that the operation of the device is'apparent. The floating mixer is placed in a pool or pond 13 and secured by hooks 15 to cables (not shown). The electrically powered motor 44 rotates shaft 41 to drive impeller 40. The motor is usually driven to produce an upward flow of liquid through chamber 23, but may be reversed to create a downdraft through the chamber 23.

The draft tube determines the flow of the liquid being mixed. As is apparent from the foregoing, liquid is drawn vertically from one horizontal level and discharged at another horizontal level in a submerged path. This facilitates mixing of materials having different densities, for example, preventing the settling of solids.

Moreover, the liquid driven upwardly as shown by arrows A in FIG. 1 is deflected by the bottom wall 17 of the float 11 for lateral distribution of the liquid in all directions indicated by arrows B. This provides efficient mixing of the liquid in the parent body 13. If the liquid is driven downwardly the flared end 24 distributes the liquid radially in all directions and the bottom wall prevents cavitation of the impeller. In any case, the bottom wall of the float serves as a baffle to the chamber 23.

A central passage 47 in the float 11 normally contains a small amount of liquid which serves as a seal and the level of which is maintained against positive and negative static heads by the conduits 60 to the parent body of liquid. If an updraft is produced by impeller 40, the head of liquid within the passage 47 tends to increase but is relieved by conduits 60 which communicate between the passage 47 and the external body of liquid. If a downdraft is produced by impeller 40, the head of liquid within passage 47 tends to be less than the level in the external body of liquid but such negative head is relieved also by the conduits 60 to the parent body of liquid, thus preventing ingestion of air to the impeller and consequent cavitation.

In the drawing and specification there has been set forth preferred embodiments of the invention, and although specific terms are employed, these are used in a generic and descriptive sense only and not for purpose of limitation. Changes in form and proportion of parts, as well as substitution of equivalents are contemplated, as circumstances may suggest or render expedient, without departing from the spirit and scope of this invention, as further defined in the following claims.

I claim:

1. In a floating liquid mixer adapted to be mounted in a parent body of liquid, the combination comprising:

a float adapted to be supported bouyantly in the parent body of liquid,

said float having a vertically extending passage therethrough,

mixing means positioned below said float adapted to be submerged in the parent body of liquid for agitating the liquid,

drive shaft means connected to said mixing means,

motor means mounted on said float for powering said drive shaft,

a shield member at the lower end of said passage containing an opening through which said drive shaft means extends,

said opening providing a clearance between said drive shaft means and said shield member whereby liquid agitated by the mixing is introduced into said passage, and

conduit means between said passage and a location remote from said mixing means for controllong the level of liquid in said passage.

2. The mixer of claim 1 in which said float is circular.

3. The mixer of claim 2 in which said mixing means, motor means, and conduit means are mounted concentric to said float.

4. A mixing device comprising:

floatable supporting means adapted to be buoyantly suspended in a parent body of liquid,

motor means supported on said floatable supporting means,

a shaft for rotation by said motor,

conduit means suspended vertically below said floatable supporting means and adapted to be submerged in the body of liquid,

said conduit means having vertically spaced upper and lower openings so that liquid is withdrawn from one level and discharged at another level below the liquid surface, said upper opening of the conduit means being spaced below said floatable supporting means,

axial flow impeller means positioned in said conduit means below said upper opening and driven by said shaft for forcing liquid under pressure through said conduit means,

chamber means surrounding said shaft for receiving the liquid projected upwardly along said shaft in order to provide a seal between said motor means and said axial flow impeller means,

baffle means adapted to be submerged below the surface of the parent body of liquid and spaced above the upper opening of said conduit means for radially deflecting the liquid discharged from said conduit means in substantially radial directions, and said conduit means oriented so that the liquid is discharged substantially vertically from the upper opening thereof against said baffle means.

5. The mixing device of claim 4 in which said upper end of the conduit means is vertically oriented in a position spaced below said baffle means by leg members depending from said floatable supporting means.

6. The mixing device of claim 4 in which said baffle means is circular.

7. The mixing device of claim 4 in which said conduit means has a cylindrical portion, and said axial flow impeller means is positioned in said cylindrical portion.

8. The mixing device of claim 4 in which said baffle means comprises the bottom wall of said floatable supporting means.

9. In a mixing device, the combination comprising:

float means adapted to be suspended in a parent body of liquid,

said float means having a bottom wall adapted to be submerged in the parent body of liquid,

draft tube means suspended below said float means for directing liquid upwardly toward the bottom wall of said float means,

said draft tube having an upper open end and lower opening,

axial flow impeller means within said draft tube means below said upper open end for discharging liquid under pressure from said upper open end against the bottom wall of said float means,

motor means supported on said float means for driving said impeller means with a shaft,

chamber means surrounding said shaft for receiving the liquid moving upwardly along said shaft so as to provide a seal between said motor means and said impeller means, and

said upper end of the draft tube means oriented toward and spaced from said bottom wall of the float means so that as the liquid is discharged therefrom it is deflected radially.

10. The mixing device of claim 9 in which said shaft tube, impeller means, and motor means are mounted centrally of said float means.

11. The mixing device of claim 9 in which said bottom wall of the float means is circular in configuration.

12. The mixing device of claim 9 in which said draft UNITED STATES PATENT OFFICE CERTIFICATE OF CORRECTION Patent 3,856,272 Dated December 24, 1974 Richard B. Ravitts Inventor(s) It is certified that error appears in the above-identified patent and that said Letters Patent are hereby corrected as shown below:

Column 3, line 12, "conduit" should be conduct Signed and Sealad this seventh 0f Ovt0 ber1975 [SEAL] Attest:

RUTH MRSON C. MARSHALL DANN Attesllng Officer Commissioner uj'latenls and Trademarks

Claims (12)

1. In a floating liquid mixer adapted to be mounted in a parent body of liquid, the combination comprising: a float adapted to be supported bouyantly in the parent body of liquid, said float having a vertically extending passage therethrough, mixing means positioned below said float adapted to be submerged in the parent body of liquid for agitating the liquid, drive shaft means connected to said mixing means, motor means mounted on said float for powering said drive shaft, a shield member at the lower end of said passage containing an opening through which said drive shaft means extends, said opening providing a clearance between said drive shaft means And said shield member whereby liquid agitated by the mixing is introduced into said passage, and conduit means between said passage and a location remote from said mixing means for controllong the level of liquid in said passage.
2. The mixer of claim 1 in which said float is circular.
3. The mixer of claim 2 in which said mixing means, motor means, and conduit means are mounted concentric to said float.
4. A mixing device comprising: floatable supporting means adapted to be buoyantly suspended in a parent body of liquid, motor means supported on said floatable supporting means, a shaft for rotation by said motor, conduit means suspended vertically below said floatable supporting means and adapted to be submerged in the body of liquid, said conduit means having vertically spaced upper and lower openings so that liquid is withdrawn from one level and discharged at another level below the liquid surface, said upper opening of the conduit means being spaced below said floatable supporting means, axial flow impeller means positioned in said conduit means below said upper opening and driven by said shaft for forcing liquid under pressure through said conduit means, chamber means surrounding said shaft for receiving the liquid projected upwardly along said shaft in order to provide a seal between said motor means and said axial flow impeller means, baffle means adapted to be submerged below the surface of the parent body of liquid and spaced above the upper opening of said conduit means for radially deflecting the liquid discharged from said conduit means in substantially radial directions, and said conduit means oriented so that the liquid is discharged substantially vertically from the upper opening thereof against said baffle means.
5. The mixing device of claim 4 in which said upper end of the conduit means is vertically oriented in a position spaced below said baffle means by leg members depending from said floatable supporting means.
6. The mixing device of claim 4 in which said baffle means is circular.
7. The mixing device of claim 4 in which said conduit means has a cylindrical portion, and said axial flow impeller means is positioned in said cylindrical portion.
8. The mixing device of claim 4 in which said baffle means comprises the bottom wall of said floatable supporting means.
9. In a mixing device, the combination comprising: float means adapted to be suspended in a parent body of liquid, said float means having a bottom wall adapted to be submerged in the parent body of liquid, draft tube means suspended below said float means for directing liquid upwardly toward the bottom wall of said float means, said draft tube having an upper open end and lower opening, axial flow impeller means within said draft tube means below said upper open end for discharging liquid under pressure from said upper open end against the bottom wall of said float means, motor means supported on said float means for driving said impeller means with a shaft, chamber means surrounding said shaft for receiving the liquid moving upwardly along said shaft so as to provide a seal between said motor means and said impeller means, and said upper end of the draft tube means oriented toward and spaced from said bottom wall of the float means so that as the liquid is discharged therefrom it is deflected radially.
10. The mixing device of claim 9 in which said shaft tube, impeller means, and motor means are mounted centrally of said float means.
11. The mixing device of claim 9 in which said bottom wall of the float means is circular in configuration.
12. The mixing device of claim 9 in which said draft tube is suspended below said float means by a plurality of depending leg members.
US3856272A 1972-06-08 1972-06-08 Floating mixer Expired - Lifetime US3856272A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
US3856272A US3856272A (en) 1972-06-08 1972-06-08 Floating mixer

Applications Claiming Priority (6)

Application Number Priority Date Filing Date Title
US3856272A US3856272A (en) 1972-06-08 1972-06-08 Floating mixer
CA 167921 CA983013A (en) 1972-06-08 1973-04-04 Floating-baffle-mounted draft tube circulator with vented gland seal
GB1966373A GB1382945A (en) 1972-06-08 1973-04-25 Floating mixer
JP5513473A JPS4957452A (en) 1972-06-08 1973-05-17
FR7320750A FR2187399A1 (en) 1972-06-08 1973-06-07
DE19732329218 DE2329218A1 (en) 1972-06-08 1973-06-07 Schwimmfaehige stirrer

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US3856272A true US3856272A (en) 1974-12-24

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US3856272A Expired - Lifetime US3856272A (en) 1972-06-08 1972-06-08 Floating mixer

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US (1) US3856272A (en)
JP (1) JPS4957452A (en)
CA (1) CA983013A (en)
DE (1) DE2329218A1 (en)
FR (1) FR2187399A1 (en)
GB (1) GB1382945A (en)

Cited By (37)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008883A (en) * 1975-06-11 1977-02-22 Robert Frutos Zubieta Blender
US4089620A (en) * 1976-10-26 1978-05-16 Riga, Inc. Floating pumping device
US4191479A (en) * 1978-07-03 1980-03-04 Tousley-Bixler Construction Co. Inc. Sludge agitating apparatus
US4308137A (en) * 1979-02-09 1981-12-29 Freeman Peter A Water aeration and circulation apparatus
US4350648A (en) * 1981-06-30 1982-09-21 Watkins Iii William L Floating aerator
US4422771A (en) * 1981-10-19 1983-12-27 Aqua-Aerobic Systems, Inc. Downflow mixer
US4491422A (en) * 1983-07-29 1985-01-01 Salter Franklin J Portable spot mixing apparatus
US4681711A (en) * 1986-05-06 1987-07-21 Eaton John M Method and apparatus for aeration of wastewater lagoons
US4723848A (en) * 1987-06-01 1988-02-09 Aqua-Aerobic Systems, Inc. Floating vertical shaft downflow directional mixer and method
US5192047A (en) * 1992-01-28 1993-03-09 Itt Corporation Tetherable frame for, and in combination with, a submersible mixer
US5269603A (en) * 1992-03-18 1993-12-14 Itt Corporation Tetherable framework for, and in combination with, a submersible mixer
US5851066A (en) * 1997-08-28 1998-12-22 Aerators, Inc. Floating mixer
US5855472A (en) * 1996-10-25 1999-01-05 Ravitts; Richard B. Diving bell submersible seal
US5961212A (en) * 1994-08-24 1999-10-05 Aquasystems International N.V. Screw with continuous and discontinuous blades for water processing apparatus
US5980100A (en) * 1995-09-27 1999-11-09 Aquasystems International N.V. Apparatus for treating liquids
FR2798602A1 (en) * 1999-09-21 2001-03-23 Raymond Berchotteau Aeration and circulation system for e.g. open- or waste waters, includes bell-shaped annular intake accelerating water to improve air distribution
WO2002048056A1 (en) * 2000-12-12 2002-06-20 Schneider, Daniel Device for oxygen enrichment of the bottom layers of stagnant bodies of water
US6432302B1 (en) * 1999-05-20 2002-08-13 Psi-Ets, A Nd Partnership Water circulation apparatus system and method
US20030127754A1 (en) * 2002-01-09 2003-07-10 Ruzicka Wayne E. Wave generator with oxygen injection for treatment of a body of fluid
US6659044B2 (en) * 2000-07-05 2003-12-09 Tech Master S.A. Water circulation apparatus and method
US6755623B2 (en) * 2001-08-06 2004-06-29 Eric Thiriez Floating pump assembly
US20050142011A1 (en) * 2002-12-31 2005-06-30 Psi-Ets Water circulation systems for ponds, lakes, and other bodies of water
US20050155922A1 (en) * 2002-12-31 2005-07-21 Psi-Ets Water circulation systems for ponds, lakes, and other bodies of water
US20050280167A1 (en) * 2004-06-21 2005-12-22 Hills Blair H Apparatus and method for diffused aeration
US20070200261A1 (en) * 2006-01-30 2007-08-30 Hills Blair H Apparatus for surface mixing of gasses and liquids
US20070200262A1 (en) * 2004-06-21 2007-08-30 Hills Blair H Apparatus for mixing gasses and liquids
US20070228584A1 (en) * 2006-03-31 2007-10-04 Hills Blair H Apparatus for mixing gasses and liquids
US20070295672A1 (en) * 2006-04-10 2007-12-27 Psi-Ets Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
US20080000818A1 (en) * 2002-12-31 2008-01-03 Psi-Ets Water circulation systems for ponds, lakes, and other bodies of water
US20080057557A1 (en) * 2006-08-31 2008-03-06 Invitrogen Corporation Methods, cassettes, gels and apparatuses for isolation and collection of biomolecules from electrophoresis gels
US20080181792A1 (en) * 2007-01-30 2008-07-31 Jorge Marcos Cortes Floating pump
US8678358B1 (en) 2013-11-11 2014-03-25 Bader Shafaqa Alenzi Buoyant aerator with support legs
US20140206077A1 (en) * 2009-05-20 2014-07-24 Xyleco, Inc. Processing biomass
US20140356069A1 (en) * 2010-06-23 2014-12-04 Jean-Paul Gateff Cold water piping system including an articulating interface, modular elements, and strainer assembly
US20150165401A1 (en) * 2013-12-18 2015-06-18 John Ries Fluid Holding Structure Fluid Circulating System
US9126850B1 (en) * 2011-10-31 2015-09-08 Aero-Stream LLC Liquid aeration device
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Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
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Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1119405A (en) * 1913-04-08 1914-12-01 George Crerar Mixing device.
US2827268A (en) * 1953-12-07 1958-03-18 Staaf Gustaf Adolf Liquid transporting apparatus
US3416729A (en) * 1966-08-12 1968-12-17 Richards Of Rockford Inc Liquid aerator
US3497185A (en) * 1968-11-20 1970-02-24 Sydnor Hydrodynamics Inc Aerating and cooling apparatus
US3622074A (en) * 1970-05-21 1971-11-23 Ceramic Cooling Tower Co Modular floating water-cooling system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1119405A (en) * 1913-04-08 1914-12-01 George Crerar Mixing device.
US2827268A (en) * 1953-12-07 1958-03-18 Staaf Gustaf Adolf Liquid transporting apparatus
US3416729A (en) * 1966-08-12 1968-12-17 Richards Of Rockford Inc Liquid aerator
US3497185A (en) * 1968-11-20 1970-02-24 Sydnor Hydrodynamics Inc Aerating and cooling apparatus
US3622074A (en) * 1970-05-21 1971-11-23 Ceramic Cooling Tower Co Modular floating water-cooling system

Cited By (68)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4008883A (en) * 1975-06-11 1977-02-22 Robert Frutos Zubieta Blender
US4089620A (en) * 1976-10-26 1978-05-16 Riga, Inc. Floating pumping device
US4191479A (en) * 1978-07-03 1980-03-04 Tousley-Bixler Construction Co. Inc. Sludge agitating apparatus
US4308137A (en) * 1979-02-09 1981-12-29 Freeman Peter A Water aeration and circulation apparatus
US4350648A (en) * 1981-06-30 1982-09-21 Watkins Iii William L Floating aerator
US4422771A (en) * 1981-10-19 1983-12-27 Aqua-Aerobic Systems, Inc. Downflow mixer
US4491422A (en) * 1983-07-29 1985-01-01 Salter Franklin J Portable spot mixing apparatus
US4681711A (en) * 1986-05-06 1987-07-21 Eaton John M Method and apparatus for aeration of wastewater lagoons
US4723848A (en) * 1987-06-01 1988-02-09 Aqua-Aerobic Systems, Inc. Floating vertical shaft downflow directional mixer and method
US5192047A (en) * 1992-01-28 1993-03-09 Itt Corporation Tetherable frame for, and in combination with, a submersible mixer
US5269603A (en) * 1992-03-18 1993-12-14 Itt Corporation Tetherable framework for, and in combination with, a submersible mixer
US5961212A (en) * 1994-08-24 1999-10-05 Aquasystems International N.V. Screw with continuous and discontinuous blades for water processing apparatus
US5980100A (en) * 1995-09-27 1999-11-09 Aquasystems International N.V. Apparatus for treating liquids
US5855472A (en) * 1996-10-25 1999-01-05 Ravitts; Richard B. Diving bell submersible seal
US5851066A (en) * 1997-08-28 1998-12-22 Aerators, Inc. Floating mixer
US6439853B2 (en) * 1998-05-21 2002-08-27 Psi-Ets And Partnership Water circulation apparatus and method
US6432302B1 (en) * 1999-05-20 2002-08-13 Psi-Ets, A Nd Partnership Water circulation apparatus system and method
FR2798602A1 (en) * 1999-09-21 2001-03-23 Raymond Berchotteau Aeration and circulation system for e.g. open- or waste waters, includes bell-shaped annular intake accelerating water to improve air distribution
US6659044B2 (en) * 2000-07-05 2003-12-09 Tech Master S.A. Water circulation apparatus and method
WO2002048056A1 (en) * 2000-12-12 2002-06-20 Schneider, Daniel Device for oxygen enrichment of the bottom layers of stagnant bodies of water
US6755623B2 (en) * 2001-08-06 2004-06-29 Eric Thiriez Floating pump assembly
US20030127754A1 (en) * 2002-01-09 2003-07-10 Ruzicka Wayne E. Wave generator with oxygen injection for treatment of a body of fluid
US7121536B2 (en) 2002-01-09 2006-10-17 Pond Doctor, Inc. Wave generator with oxygen injection for treatment of a body of fluid
US20080112820A1 (en) * 2002-12-31 2008-05-15 Tormaschy Willard R Water circulation systems for ponds, lakes, and other bodies of water
US8057091B2 (en) 2002-12-31 2011-11-15 Medora Environmental, Inc. Water circulation systems for ponds, lakes, and other bodies of water
US7850433B2 (en) 2002-12-31 2010-12-14 Medora Environmental, Inc. Water circulation systems for ponds, lakes, and other bodies of water
US20050155922A1 (en) * 2002-12-31 2005-07-21 Psi-Ets Water circulation systems for ponds, lakes, and other bodies of water
US7798784B2 (en) 2002-12-31 2010-09-21 Medora Environmental, Inc. Water circulation systems for ponds, lakes, and other bodies of water
US7789553B2 (en) * 2002-12-31 2010-09-07 Medora Environmental, Inc. Water circulation systems for ponds, lakes, and other bodies of water
US7670044B2 (en) 2002-12-31 2010-03-02 Medora Environmental, Inc. Water circulation systems for ponds, lakes, and other bodies of water with adjustable solar panels
US7306719B2 (en) * 2002-12-31 2007-12-11 Psi-Ets, A North Dakota Partnership Water circulation systems for ponds, lakes, and other bodies of water
US20080169229A1 (en) * 2002-12-31 2008-07-17 Psi-Ets, A North Dakota Partnership Water circulation systems for ponds, lakes, and other bodies of water
US20080000818A1 (en) * 2002-12-31 2008-01-03 Psi-Ets Water circulation systems for ponds, lakes, and other bodies of water
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US20050142011A1 (en) * 2002-12-31 2005-06-30 Psi-Ets Water circulation systems for ponds, lakes, and other bodies of water
US20080128344A1 (en) * 2002-12-31 2008-06-05 Psi-Ets, A North Dakota Partnership Water circulation systems for ponds, lakes, and other bodies of water
US20080087586A1 (en) * 2002-12-31 2008-04-17 Psi-Ets, A North Dakota Partnership Water circulation systems for ponds, lakes, and other bodies of water
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US7332074B2 (en) 2002-12-31 2008-02-19 Psi-Ets, A North Dakota Partnership Water circulation systems for ponds, lakes, and other bodies of water
US20070200262A1 (en) * 2004-06-21 2007-08-30 Hills Blair H Apparatus for mixing gasses and liquids
US7398963B2 (en) 2004-06-21 2008-07-15 Hills Blair H Apparatus and method for diffused aeration
US20050280167A1 (en) * 2004-06-21 2005-12-22 Hills Blair H Apparatus and method for diffused aeration
US8585023B2 (en) 2004-06-21 2013-11-19 Blair H. Hills Apparatus for mixing gasses and liquids
WO2006009954A1 (en) * 2004-06-21 2006-01-26 Hills Blair H Apparatus and method for diffused aeration
US8146894B2 (en) 2004-06-21 2012-04-03 Hills Blair H Apparatus for mixing gasses and liquids
US8056887B2 (en) 2006-01-30 2011-11-15 Hills Blair H Apparatus for surface mixing of gasses and liquids
US20070200261A1 (en) * 2006-01-30 2007-08-30 Hills Blair H Apparatus for surface mixing of gasses and liquids
US20070228584A1 (en) * 2006-03-31 2007-10-04 Hills Blair H Apparatus for mixing gasses and liquids
US8146895B2 (en) 2006-03-31 2012-04-03 Hills Blair H Apparatus for mixing gasses and liquids
US7641792B2 (en) 2006-04-10 2010-01-05 Medora Environmental, Inc. Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
US20090134083A1 (en) * 2006-04-10 2009-05-28 Medora Environmental, Inc., A North Dakota Corporation Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
US7517460B2 (en) 2006-04-10 2009-04-14 Medora Environmental, Inc. Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
US7906017B2 (en) 2006-04-10 2011-03-15 Medora Environmental, Inc. Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
US20110129338A1 (en) * 2006-04-10 2011-06-02 Medora Environmental, Inc., A North Dakota Corporation Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
US20100092285A1 (en) * 2006-04-10 2010-04-15 Medora Environmental, Inc., A North Dakota Corporation Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
US20070295672A1 (en) * 2006-04-10 2007-12-27 Psi-Ets Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
US8388837B2 (en) 2006-04-10 2013-03-05 Medora Environmental, Inc. Water circulation systems for ponds, lakes, municipal tanks, and other bodies of water
US20080057557A1 (en) * 2006-08-31 2008-03-06 Invitrogen Corporation Methods, cassettes, gels and apparatuses for isolation and collection of biomolecules from electrophoresis gels
US20080181792A1 (en) * 2007-01-30 2008-07-31 Jorge Marcos Cortes Floating pump
US20140206077A1 (en) * 2009-05-20 2014-07-24 Xyleco, Inc. Processing biomass
US9677039B2 (en) * 2009-05-20 2017-06-13 Xyleco, Inc. Processing biomass
US20140356069A1 (en) * 2010-06-23 2014-12-04 Jean-Paul Gateff Cold water piping system including an articulating interface, modular elements, and strainer assembly
US9051704B2 (en) * 2010-06-23 2015-06-09 Jean-Paul Gateff Cold water piping system including an articulating interface, modular elements, and strainer assembly
US9126850B1 (en) * 2011-10-31 2015-09-08 Aero-Stream LLC Liquid aeration device
US9642494B1 (en) 2013-10-21 2017-05-09 Kevin Brun Radial immersion blender
US8678358B1 (en) 2013-11-11 2014-03-25 Bader Shafaqa Alenzi Buoyant aerator with support legs
US20150165401A1 (en) * 2013-12-18 2015-06-18 John Ries Fluid Holding Structure Fluid Circulating System
US9795937B2 (en) * 2013-12-18 2017-10-24 John Ries Fluid holding structure fluid circulating system

Also Published As

Publication number Publication date Type
GB1382945A (en) 1975-02-05 application
FR2187399A1 (en) 1974-01-18 application
CA983013A (en) 1976-02-03 grant
CA983013A1 (en) grant
JPS4957452A (en) 1974-06-04 application
DE2329218A1 (en) 1974-01-03 application

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