US2919215A - Apparatus for vibrating liquids - Google Patents

Apparatus for vibrating liquids Download PDF

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US2919215A
US2919215A US335114A US33511453A US2919215A US 2919215 A US2919215 A US 2919215A US 335114 A US335114 A US 335114A US 33511453 A US33511453 A US 33511453A US 2919215 A US2919215 A US 2919215A
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frequency
liquid
container means
vibration
container
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US335114A
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Neuhaus Jean
Kemeny Janos
Ranky Bela
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Thermofrigor SA
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Thermofrigor SA
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    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J43/00—Implements for preparing or holding food, not provided for in other groups of this subclass
    • A47J43/04—Machines for domestic use not covered elsewhere, e.g. for grinding, mixing, stirring, kneading, emulsifying, whipping or beating foodstuffs, e.g. power-driven
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J27/00—Cooking-vessels
    • A47J27/004—Cooking-vessels with integral electrical heating means
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47L—DOMESTIC WASHING OR CLEANING; SUCTION CLEANERS IN GENERAL
    • A47L15/00—Washing or rinsing machines for crockery or tableware
    • A47L15/02—Washing or rinsing machines for crockery or tableware with circulation and agitation of the cleaning liquid in the cleaning chamber containing a stationary basket
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01F—MIXING, e.g. DISSOLVING, EMULSIFYING OR DISPERSING
    • B01F31/00—Mixers with shaking, oscillating, or vibrating mechanisms
    • B01F31/80—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations
    • B01F31/86—Mixing by means of high-frequency vibrations above one kHz, e.g. ultrasonic vibrations with vibration of the receptacle or part of it
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B3/00—Cleaning by methods involving the use or presence of liquid or steam
    • B08B3/04—Cleaning involving contact with liquid
    • B08B3/10—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration
    • B08B3/12—Cleaning involving contact with liquid with additional treatment of the liquid or of the object being cleaned, e.g. by heat, by electricity or by vibration by sonic or ultrasonic vibrations
    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06F—LAUNDERING, DRYING, IRONING, PRESSING OR FOLDING TEXTILE ARTICLES
    • D06F19/00—Washing machines using vibrations for washing purposes

Definitions

  • the present invention relates to apparatus for vibrating liquids, in which vibrations are transmitted to the liquid through the whole or a part of the walls themselves of the vessel containing the liquid.
  • the vibrations of the walls are obtained by the fact that those walls, or the elements of which they are made, are traversed by lines of force of magnetic or electric fields having periodically variable intensities.
  • frequencies are used, for example, 50 to 100 cycles per second, that is to say, frequencies which are generally used by vibrators supplied with alternating current of a frequency of 50 cycles per second, a practically stationary vibratory system is obtained.
  • the walls and the liquid form a complete vibratory system having several degrees of freedom, that is to say, several resonance frequencies.
  • the system formed by the receptacle and the liquid on the one hand, and the emitters of the said fields on the other are preferably given such characteristics that their frequencies are in resonance.
  • the frequency of variation of the fields is 100 cycles. If the vibratory system is to be tuned to that frequency, the vessel must be given relatively small dimensions (-20 litres for example) with the usual sheet In order to make the vessel larger while preserving resonance, the thickness of the walls would have to be increased which would make the apparatus less sensitive.
  • the walls form one of the elements of the magnetic circuit, they must be of a term-magnetic material, That in some cases can be a disadvantage. In that case, one can make the non-ferro-magnctic wall integral with a part of ferro-magnetic material closing the magnetic circuit of the electro-magnet or subjected to the action of a coil traversed by an electric current the intensity of which is subject to periodic variations.
  • the applications of the present invention are very numerous. Among those applications one can mention in particular washing machines, emulsifiers, baths for cleaning metals, galvano-plastic devices, vibrators for use in the manufacture of foodstufls, etc.
  • FIG. l a vertical section through a washing machine in accordance with the invention.
  • FIG. 6 a side view of the vessel of a third washing machine in accordance with the invention.
  • Figure 7 a section taken on the line VII-VII of a part of Figure 6;
  • FIG 8 a perspective view partially in section through a fourth washing machine in accordance with the present invention.
  • the washing machine shown in Figures 1 and 2 comprises an iron vessel 2 of square horizontal section, the upper edge 1 of which rests on a frame 3 mounted on a support 4 having four feet.
  • a gas burner 8 provides the necessary heat.
  • a octagonal frame 5 is fixed on the corners of the vessel 2 and carries four electro-magnets 7.
  • One of the elements of the magnetic circuit of those electro-magnets is constituted by the vertical wall itself of the vessel 2. If those four electro-magnets 7 are fed with the same alternating current, the walls oscillate at a frequency twice that of the alternating current. The vibrations of the walls are in phase and the walls are drawn in at the same time.
  • the end 11 is fixed at the height of the liquid level in the vessel 2. Numerous spurts of water then occur from the free surface of the liquid particularly near the walls of the vessel 2. For washing clothes, the latter have only to be immersed in the suitably prepared liquid.
  • the liquid level in the vessel 2 remains constant, the pipe 10 acting as an overflow.
  • the present invention is not limited to the washing machine described above.
  • the walls of the vessel 2 are of ferromagnetic material as in Figures 1 and 2, that can be a disadvantage.
  • the wall 2 could be used as one element of a condenser the other element of which is shown at 17 and the charge on which is subject to periodic variations.
  • fix to the wall 2 a sleeve 18 on which is wound a conductor 19 supplied with alternating current and disposed in a magnetic field.
  • the Washing machine shown in Figures 6 and 7 comprises a vessel 2 the edge 1 of which has lugs 11a while the lower edge has lugs 12a.
  • Those supports form screens Set for protecting the electromagnets 7 against the hot gases of the burner 8.
  • the supports are provided with openings 5b substantially at the centre.
  • the electromagnets are formed by a packet of plates 7 and a coil 7a; each of these electromagnets is carried by a stirrup 20 which is fixed to the base of the support by screws 21 the heads of which are welded to the support 5. On these screwthreaded rods are provided knurled nuts and locking nuts 23. The ends of the stirrup 20 are held between knurled nuts 22 and locking nuts 23.
  • the air gap of the magnetic circuit defined by the plates 7 and the wall 2 can be adjusted and the force of attraction thus modified.
  • washing machine is otherwise identical to that of the washing machine shown in Figures 1 and 2.
  • the vessel need not be of square cross section as in the examples described above. It can be round or rectangular as shown in Figure 8.
  • the vessel or container shown in Fig. 8 is formed with double walls 2a and 2b and the inner wall portions of the walls 2a are not strictly plane but formed with depressions at 24, here shown to be circular and coaxial with the electromagnets 7, only one of which is shown in Fig. 8.
  • the depressions 24 allow not only the period of the vibration of the unit formed by the vessel and its contents to be varied but also allow the elimination of certain internal stresses in the plates forming the vibratory wall 2a.
  • washing machine is analogous to that of the washing machines described above.
  • Vibration apparatus comprising, in combination, support means; container means mounted on said support means and adapted to contain liquid to be vibrated and having at least one wall portion including ferro-magnetic material, said container means with liquid therein being adapted to vibrate within a certain frequency range,
  • Vibration apparatus comprising, in combination, support means; container means mounted on said support means and adapted to contain liquid to be vibrated and having at least one wall portion including ferro-magnetic material, said container means with the liquid therein being adapted to vibrate within a certain frequency range, the actual frequency within said range depending upon the amount of liquid in said container means; electrical vibration producing means mounted on said support and comprising electromagnetic means supplied with alternating current of a frequency of 50-60 cycles per sec., said vibration producing means cooperating with said wall portion including ferro-magnetic material for vibrating said container means together with the liquid contained therein at an actual frequency within said frequency range; and means operable for varying the level of the liquid adapted to be contained in said container means for adjusting the frequency of vibration of said container means with said liquid therein to a frequency resonant with said actual frequency within said frequency range, whereby resonance can be established between the frequency of said vibration producing means and the adjusted frequency of said container means with the liquid therein.

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  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Mechanical Engineering (AREA)
  • Textile Engineering (AREA)
  • Cleaning By Liquid Or Steam (AREA)

Description

Dec. 29, 1959 J. NEUHAUS ET AL 2,919,215
APPARATUS FOR VIBRATING LIQUIDS Filed Feb. 4, 1953 2 Sheets-Sheet 1 INVENTDRS:
TEAM NEuHAus, o5 KEMEH) p 85m RAH/ 7 Dec. 29, 1959 J. NEUHAUS ETAL 2,919,215
APPARATUS FOR VIBRATING LIQUIDS Filed Feb. 1953 2 Sheets-Sheet 2 TEAM NEUHAUS' TAHos KEMEIYX, AND 65m RAP/KY BYI m vEnIToK- vmetal thicknesses (about 0.51 mm.).
United rates Patent APPARATUS FOR VIBRATING LIQUIDS Jean Neuhaus, Neuilly-sur-Seine, Janos Kemeny, Brysur-Marne, and Bela Ranky, Clichy, France; said Neuhaus assignor to Thermofrigor, Socit Anonyme, Casablanca, Morocco Application February 4, 1953, Serial No. 335,114
Claim priority, application France February 21, 1952 3 Claims. c1. 134-1) The present invention relates to apparatus for vibrating liquids, in which vibrations are transmitted to the liquid through the whole or a part of the walls themselves of the vessel containing the liquid.
Generally, those vibrations are obtained by mechanical means.
In accordance with the present invention, the vibrations of the walls are obtained by the fact that those walls, or the elements of which they are made, are traversed by lines of force of magnetic or electric fields having periodically variable intensities.
In this manner, one obtains an improvement in the efliciency of transmission of the energy particularly in,
the case of low frequencies. Indeed, in that case, the wave lengths are great relatively to the dimensions of the vessels and the use of the walls themselves, on the one hand,
avoids the short-circuits which are produced in the case of submerged vibrators, and on the other hand, provides a transmitting element having a surface which is as large as possible.
If low, frequencies are used, for example, 50 to 100 cycles per second, that is to say, frequencies which are generally used by vibrators supplied with alternating current of a frequency of 50 cycles per second, a practically stationary vibratory system is obtained. The walls and the liquid form a complete vibratory system having several degrees of freedom, that is to say, several resonance frequencies.
In accordance with the present invention, the system formed by the receptacle and the liquid on the one hand, and the emitters of the said fields on the other, are preferably given such characteristics that their frequencies are in resonance.
Thus, one can tune either one of the fundamental frequencies of the vibratory system formed by the vessel and the liquid to the frequency of the fields (for example, by varying the level of the liquid), or the frequency of the fields to one of the fundamental frequencies of the vibratory system formed by the vessel and the liquid.
If, for emitting the fields, one uses electromagnets supplied with alternating current having a periodicity of 50 cycles, the frequency of variation of the fields is 100 cycles. If the vibratory system is to be tuned to that frequency, the vessel must be given relatively small dimensions (-20 litres for example) with the usual sheet In order to make the vessel larger while preserving resonance, the thickness of the walls would have to be increased which would make the apparatus less sensitive.
In order to avoid that difiiculty, it is possible in par ticular to rectify the alternating current by suppressing one alternation and the frequency of the exciting force is then brought back to 50. Thus, the dimensions of the vessel in resonance with that frequency, can be materially increased and furthermore the noise of the apparatus is more acceptable to the human ear.
If the walls form one of the elements of the magnetic circuit, they must be of a term-magnetic material, That in some cases can be a disadvantage. In that case, one can make the non-ferro-magnctic wall integral with a part of ferro-magnetic material closing the magnetic circuit of the electro-magnet or subjected to the action of a coil traversed by an electric current the intensity of which is subject to periodic variations.
One can also use one or more of the walls of the vessel as one of the elements of an electrical condenser the charge of which is subject to periodical variations.
One can also mount on one or more of the walls an electrical conductor through which passes a current the intensity of which is subject to periodical variations and which lies in a magnetic or electromagnetic field.
The applications of the present invention are very numerous. Among those applications one can mention in particular washing machines, emulsifiers, baths for cleaning metals, galvano-plastic devices, vibrators for use in the manufacture of foodstufls, etc.
By way of example, but in no limiting sense, there have been shown in the accompanying drawings:
Figure l, a vertical section through a washing machine in accordance with the invention.
Figure 2, a horizontal section through that washing machine; taken on the line IIII in Figure 1;
Figures 3-5, three modifications of a detail of the machine in accordance with the invention;
Figure 6, a side view of the vessel of a third washing machine in accordance with the invention;
Figure 7, a section taken on the line VII-VII of a part of Figure 6;
Figure 8, a perspective view partially in section through a fourth washing machine in accordance with the present invention.
The washing machine shown in Figures 1 and 2 comprises an iron vessel 2 of square horizontal section, the upper edge 1 of which rests on a frame 3 mounted on a support 4 having four feet. A gas burner 8 provides the necessary heat. A octagonal frame 5 is fixed on the corners of the vessel 2 and carries four electro-magnets 7. One of the elements of the magnetic circuit of those electro-magnets is constituted by the vertical wall itself of the vessel 2. If those four electro-magnets 7 are fed with the same alternating current, the walls oscillate at a frequency twice that of the alternating current. The vibrations of the walls are in phase and the walls are drawn in at the same time. For tuning the exciting forces of the electro-magnets 7 and the vibrations of the vibratory system formed by the vessel 2 and the liquid which it contains, one can regulate the level of the liquid in the vessel 2 by means of a pipe 10 by vertically displacing its end 11. When resonance is achieved, the end 11 is fixed at the height of the liquid level in the vessel 2. Numerous spurts of water then occur from the free surface of the liquid particularly near the walls of the vessel 2. For washing clothes, the latter have only to be immersed in the suitably prepared liquid. The liquid level in the vessel 2 remains constant, the pipe 10 acting as an overflow.
If the current used for excitation of the electro-magnets 7 of two opposite walls of the vessel 2 in an alternating current out of phase relatively to that used for the other two electromagnets, the opposite walls will be pulled in while the others are not.
When a rectifier is used for reducing the frequency and his desired that the two pairs of walls should oscillate in opposite directions, two oppositely connected rectifiers have to be used, one for each pair of electromagnets.
The present invention is not limited to the washing machine described above. Thus, for example, if the walls of the vessel 2 are of ferromagnetic material as in Figures 1 and 2, that can be a disadvantage. For example, as indicated in Figure 3, there can be fixed to the non-ferro-magnetic wall 2 a ferromagnetic part disposed in the field of a solenoid 16 through which passes an alternating electric current. Also, as shown in Figure 4, the wall 2 could be used as one element of a condenser the other element of which is shown at 17 and the charge on which is subject to periodic variations. It is also possible, as indicated in Figure 5, to fix to the wall 2 a sleeve 18 on which is wound a conductor 19 supplied with alternating current and disposed in a magnetic field.
The Washing machine shown in Figures 6 and 7 comprises a vessel 2 the edge 1 of which has lugs 11a while the lower edge has lugs 12a. To these lugs 11a and 12:: are fixed supports 25 by means of screws 11b and 12b.
Those supports form screens Set for protecting the electromagnets 7 against the hot gases of the burner 8. The supports are provided with openings 5b substantially at the centre.
The electromagnets are formed by a packet of plates 7 and a coil 7a; each of these electromagnets is carried by a stirrup 20 which is fixed to the base of the support by screws 21 the heads of which are welded to the support 5. On these screwthreaded rods are provided knurled nuts and locking nuts 23. The ends of the stirrup 20 are held between knurled nuts 22 and locking nuts 23.
By suitably adjusting the position of the knurled nuts 22, the air gap of the magnetic circuit defined by the plates 7 and the wall 2 can be adjusted and the force of attraction thus modified.
The operation of that washing machine is otherwise identical to that of the washing machine shown in Figures 1 and 2.
It is to be noted that the vessel need not be of square cross section as in the examples described above. It can be round or rectangular as shown in Figure 8. The vessel or container shown in Fig. 8 is formed with double walls 2a and 2b and the inner wall portions of the walls 2a are not strictly plane but formed with depressions at 24, here shown to be circular and coaxial with the electromagnets 7, only one of which is shown in Fig. 8. The depressions 24 allow not only the period of the vibration of the unit formed by the vessel and its contents to be varied but also allow the elimination of certain internal stresses in the plates forming the vibratory wall 2a.
The operation of that washing machine is analogous to that of the washing machines described above.
What is claimed is:
l. Vibration apparatus comprising, in combination, support means; container means mounted on said support means and adapted to contain liquid to be vibrated and having at least one wall portion including ferro-magnetic material, said container means with liquid therein being adapted to vibrate within a certain frequency range,
the actual frequency within said range depending upon of said container means with said liquid therein to a frequency resonant with said actual frequency within said frequency range, whereby resonance can be established between the frequency of said vibration producing means and the adjusted frequency of said container means with the liquid therein.
2. Vibration apparatus comprising, in combination, support means; container means mounted on said support means and adapted to contain liquid to be vibrated and having at least one wall portion including ferro-magnetic material, said container means with the liquid therein being adapted to vibrate within a certain frequency range, the actual frequency within said range depending upon the amount of liquid in said container means; electrical vibration producing means mounted on said support and comprising electromagnetic means supplied with alternating current of a frequency of 50-60 cycles per sec., said vibration producing means cooperating with said wall portion including ferro-magnetic material for vibrating said container means together with the liquid contained therein at an actual frequency within said frequency range; and means operable for varying the level of the liquid adapted to be contained in said container means for adjusting the frequency of vibration of said container means with said liquid therein to a frequency resonant with said actual frequency within said frequency range, whereby resonance can be established between the frequency of said vibration producing means and the adjusted frequency of said container means with the liquid therein.
3. A method of treating solid matter by applying a vibrating force having a predetermined frequency of vibration to container means containing said solid matter immersed in a liquid within said container means which container means together with the liquid therein is adapted to vibrate at a natural frequency within a certain frequency range, the actual natural frequency of vibration within said range depending upon the amount of liquid in said container means, said method comprising the steps of adjusting the amount of liquid within said container means in such a manner as to adjust the actual natural frequency of vibration of said container means and said liquid therein to a frequency resonant with said predetermined frequency of said vibrating force applied to said container means; and vibrating saidcontainer means with said solid matter immersed in said adjusted amount of liquid therein by applying to said container means said vibrating force with said predetermined frequency ofvibration.
References Cited in the file of this patent UNITED STATES PATENTS 1,485,568 Ruprecht Mar. 4, 1924 1,734,975 Loomis et al. Nov. 12, 1929 2,366,822 Willard Jan. 9, 1945 2,455,043 Calhoun Nov. 30, 1948 2,468,550 Fruth Apr. 26, 1949 2,616,820 Bourgeaux Nov. 4, 1952 FOREIGN PATENTS 628,142 Great Britain Aug. 23, 1949 648,609 Great Britain Jan. 10, 1951 845,790 Germany Aug. 4, 1951

Claims (1)

1. VIBRATION APPARATUS COMPRISING , IN COMBINATION, SUPPORT MEANS; CONTAINER MEANS MOUNTED ON SAID SUPPORT MEANS AND ADAPTED TO CONTAIN LIQUID TO BE VIBRATED AND HAVING AT LEAST ONE WALL PORTION INCLUDING FERRO-MAG NETIC MATERIAL, SAID CONTAINER MEANS WITH LIQUID THEREIN BEING ADAPTED TO VIBRATE WITHIN A CERTAIN FREQUENCY RANGE, THE ACTUAL FREQUENCY WITHIN SAID RANGE DEPENDING UPON THE AMOUNT OF LIQUID IN SAID CONTAINER MEANS; VIBRATION PRODUCING MEANS MOUNTED IN SAID SUPPORT AND COOPERATING WITH SAID WALL PORTION INCLUDING FERRO-MAGNETIC MATERIAL FOR VIBRATING SAID CONTAINER MEANS TOGETHER WITH THE LIQUID CONTAINED THEREIN AT AN ACTUAL FREQUENCY WITHIN SAID FREQUENCY RANGE; AND MEANS OPERABLE FOR VARYING THE LEVEL OF THE LIQUID ADAPTED TO BE CONTAINED IN SAID CONTAINER MEANSS FOR ADJUSTING THE FREQUENCY OF VIBRATION OF SAID CONTAINER MEANS WITH LIQUID THEREIN TO A FREQUENCY RESONANT WITH SAID ACTUAL FREQUENCY WITHIN SAID FREQUENCY RANGE, WHEREBY RESONANCE CAN BE ESTABLISHED BETWEEN THE FREQUENCY OF SAID VIBRATION PRODUCING MEANS AND THE ADJUSTED FREQUENCY OF SAID CONTAINER MEANS WITH THE LIQUID THEREIN. A. METHOD OF TREATING SOLID MATTER BY APPLYING A VIBRATING FORCE HAVING A PREDETERMINED FREQUENCY OF VIBRATION TO CONTAIDNER MEANS CONTAINING SAID SOLID MATTER IMMERSED IN A LIQUID WITHIN SAID CONTAINER MEANS WHICH CONTAINER MEANS TOGETHER WITH THE LIQUID THEREIN IS ADAPTED TO VIBRATE AT A NATURAL FREQUENCY WITHIN A CERTAIN FREQUENCY RANGE, THE ACTUAL NATURAL FREQUENCY OF VIBRATION WITHIN SAID RANGE DEPENDING UPON THE AMOUNT OF LIQUID IN SAID CONTAINER MEANS, SAID METHOD COMPRISINGT THE STEPS OF ADJUSTING THE AMOUNT OF LIQUID WITHIN SAID CONTAINER MEANS IN SUCH A MANNER AS TO ADJUST THE ACTUAL NATURAL FREQUENCY OF VIBRATION OF SAID CONTAINER MEANS AND SAID LIQUID THEREIN TO A FREQUENCY RESONANT WITH SAID PREDETERMINED FREQUENCY OF SAID VIBRATING FORCE APPLIED TO SAID CONTAINER MEANS; AND VIBRATING SAID CONTAINER MEANS WITH SAID SOLID MATTER IMMERSED IN SAID ADJUSTED AMOUNT OF LIQUID THEREIN BY APPLYING TO SAID CONTAINER MEANS SAID VIBRATING FORCE WITH SAID PREDETERMINED FREQUENCY OF VIBRATION.
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Cited By (15)

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US3087840A (en) * 1958-06-16 1963-04-30 Macrosonic Process Corp Methods and means for producing physical, chemical and physicochemical effects by large-amplitude sound waves
US3222221A (en) * 1959-04-29 1965-12-07 Branson Instr Ultrasonic cleaning method and apparatus
US3465974A (en) * 1966-05-13 1969-09-09 Norton Co Vibratory mill
US3520724A (en) * 1967-06-23 1970-07-14 Dynamics Corp America Dual tank sonic processing system and method
FR2421670A1 (en) * 1978-04-06 1979-11-02 Soyuzny Z Mekh Khim Ochistke K MATERIALS AGITATION PROCESS AND DEVICE FOR ITS IMPLEMENTATION
EP0271448A2 (en) * 1986-12-11 1988-06-15 IntraCel Corporation Container for keeping liquid mediums
US5327091A (en) * 1993-03-04 1994-07-05 The United States Of America As Represented By The Secretary Of The Air Force Electronic mode stirring
US5452594A (en) * 1993-06-19 1995-09-26 Goldstar Co., Ltd. Low frequency vibration type washing machine and method
EP0679753A2 (en) * 1994-04-29 1995-11-02 Hughes Aircraft Company Dry-cleaning of garments using liquid carbon dioxide under agitation as cleaning medium
US5711327A (en) * 1995-10-10 1998-01-27 Fields; John T. System for vibration cleaning of articles including radiators
US20050152216A1 (en) * 2001-11-01 2005-07-14 Friedman Mitchell A. Multidirectional mixing of fluid samples
US8016218B1 (en) 2011-03-16 2011-09-13 Mitchell Friedman Linear specimen shaker
US20130315025A1 (en) * 2011-05-03 2013-11-28 Andrej Getalov Method of ultrasonic cavitation treatment of liquid media and the objects placed therein
US20150078114A1 (en) * 2012-05-21 2015-03-19 Cavitanica Ltd. Simultaneously and ultrasonically induced cavitation fluid processing method
US20150217263A1 (en) * 2012-03-26 2015-08-06 Cavitanica Ltd. Method of simultaneous cavitation treatment of liquid media different in composition

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US1485568A (en) * 1922-05-04 1924-03-04 Charles C Ruprecht Screening mechanism
US1734975A (en) * 1927-09-02 1929-11-12 Alfred L Loomis Method and apparatus for forming emulsions and the like
US2366822A (en) * 1942-12-02 1945-01-09 Bell Telephone Labor Inc Ultrasonic cell
US2455043A (en) * 1946-04-05 1948-11-30 Ann E Calhoun Clothes cleansing and fluid extracting apparatus having a flexible clothes squeezingdiaphragm
US2468550A (en) * 1944-10-27 1949-04-26 Motorola Inc Method of and apparatus for cleaning by ultrasonic waves
GB628142A (en) * 1946-01-31 1949-08-23 George Edwin Atkins Improvements in washing machine
GB648609A (en) * 1945-09-07 1951-01-10 Sol Brown Wiczer Improvements in methods of washing textile material
DE845790C (en) * 1951-01-31 1952-08-04 Siemens Ag Machine, especially for treating laundry, dishes or the like.
US2616820A (en) * 1947-05-19 1952-11-04 Saint Gobain Vibratory cleansing of objects

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1485568A (en) * 1922-05-04 1924-03-04 Charles C Ruprecht Screening mechanism
US1734975A (en) * 1927-09-02 1929-11-12 Alfred L Loomis Method and apparatus for forming emulsions and the like
US2366822A (en) * 1942-12-02 1945-01-09 Bell Telephone Labor Inc Ultrasonic cell
US2468550A (en) * 1944-10-27 1949-04-26 Motorola Inc Method of and apparatus for cleaning by ultrasonic waves
GB648609A (en) * 1945-09-07 1951-01-10 Sol Brown Wiczer Improvements in methods of washing textile material
GB628142A (en) * 1946-01-31 1949-08-23 George Edwin Atkins Improvements in washing machine
US2455043A (en) * 1946-04-05 1948-11-30 Ann E Calhoun Clothes cleansing and fluid extracting apparatus having a flexible clothes squeezingdiaphragm
US2616820A (en) * 1947-05-19 1952-11-04 Saint Gobain Vibratory cleansing of objects
DE845790C (en) * 1951-01-31 1952-08-04 Siemens Ag Machine, especially for treating laundry, dishes or the like.

Cited By (19)

* Cited by examiner, † Cited by third party
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