GB2096456A - Dishwashing machine sump filter - Google Patents
Dishwashing machine sump filter Download PDFInfo
- Publication number
- GB2096456A GB2096456A GB8204791A GB8204791A GB2096456A GB 2096456 A GB2096456 A GB 2096456A GB 8204791 A GB8204791 A GB 8204791A GB 8204791 A GB8204791 A GB 8204791A GB 2096456 A GB2096456 A GB 2096456A
- Authority
- GB
- United Kingdom
- Prior art keywords
- sieve
- sump
- shaped
- filter element
- filter
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Granted
Links
Classifications
-
- 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
- A47L15/42—Details
- A47L15/4202—Water filter means or strainers
- A47L15/4206—Tubular filters
-
- 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
- A47L15/42—Details
- A47L15/4202—Water filter means or strainers
- A47L15/4204—Flat filters
Landscapes
- Washing And Drying Of Tableware (AREA)
Abstract
A dishwashing machine is provided with filter means (14, 15, 16, 18) in an outlet sump (11) thereof the sump being dish-shaped and provided at its base with a suction outlet (12) to a discharge pump and in its side wall with a suction outlet (13) to a circulating pump. The sump (11) is covered at the top by a funnel-shaped fine sieve (14) which has a large generating angle and which has a transition in its central region leading into a sleeve-shaped fine sieve (15) extending as far as the suction outlet (12) for the discharge pump. The sleeve-shaped sieve (15) is surrounded at its periphery by a sieve tube (16) which is formed as a very fine sieve and which extends, at a distance from the sleeve-shaped fine sieve (15), from the funnel-shaped fine sieve (14) to the sump base portion (17) surrounding the suction outlet (12) for the discharge pump. <IMAGE>
Description
SPECIFICATION
Dishwashing machine sump filter
The present invention relates to a dishwashing machine provided with filter means in an outlet sump of the machine.
An arrangement of filter sieves is disclosed in
DE-OS 2832 084, the arrangement comprising not only a first fine sieve, but also a second fine sieve in register therewith and adjustable relative to the first sieve for achieving different seive aperture crosssections. By this means, finely divided dirt is intended to be separated from the washing liquid.
The known arrangement, is, however, disadvantageous in that the intended adjustment of the two fine sieves relative to each other requires an additional adjusting element. Moreover, the sieve arrangement is largely ineffective if the two sieves are not extremely accurate in form and are not made and correctly disposed in the drain pan or sump of the machine in respect of the registration of the sieve apertures.
There is accordingly a need for a filter arrangement which is not susceptible to faults and which is suitable for the filtering of especially fine dirt particles from the washing liquid of dishwashing machines, preferably without substantially increasing the flow resistance to the circulating pump of the machine.
According to the present invention there is provided a dishwashing machine provided with an outlet sump having an outlet port in each of a side wall and a base thereof and with filter means arranged in the sump and comprising a first filter element having a wide-angle funnel-shaped upper sieve portion covering the top of the sump and a substantially sleeve-shaped lower sieve portion extending down from the central region of the upper sieve portion to the outlet port in the sump base, and a second filter element having a finer filter mesh than the first element and comprising a generally tubular sieve body which surrounds the peripheral wall of said lower sieve portion at a spacing therefrom and extends from said upper sieve portion down to a portion of the sump base surrounding the outlet port therein.
In a preferred embodiment, the sump or drain pan of the machine is dish-shaped and is provided at the base with a suction connection to a discharge pump and at the side with a suction connection to a circulating pump. The sump is covered at the top of a funnel-shaped fine sieve which has a large generating angle and which has a transition in its central region leading into a sleeve-shaped fine sieve extending as far as the suction connection of the discharge pump. The sleeve-shaped sieve is surrounded at its periphery by a further sieve tube which is formed as a very fine sieve and which extends, at a distance from the sleeve-shaped fine sieve, from the funnel-shaped fine sieve to the sump base surrounding the suction connection to the discharge pump.
This embodiment has the advantage that only a partial stream of the washing liquid sucked out by the circulating pump on the path through the sleeve-shaped fine sieve to the suction connection of the pump flows through the very fine sieve, in which very fine dirt particles passing through the fine sleeve-shaped sieve are retained. Since the washing liquid is circulated for a fairly long time in the machine, the very fine sieve is able, during this period, to separate from the washing liquid virtually all the non-passing extremely fine dirt particles.
Two embodiments of the present invention will now be more particularly described by way of example with reference to the accompanying drawings, in which:
Fig. 1 is a vertical section of a drain pan of a dishwashing machine provided with filter means in accordance with a first embodiment of the invention; and
Fig. 2 is a vertical section of a drain pan of a dishwashing machine provided with filter means in accordance with a second embodiment of the invention.
Referring now to the drawings, there is shown part of the washing vessel of a household dishwashing machine, the bottom 10 of the vessel having a transition at its centre into a dish-shaped sump or drain pan 11, to which is connected at the base a suction connection 12 of a discharge pump and at the side a suction connection 13 of a circulating pump. At the top, the drain pan 11 is covered by a funnel-shaped fine sieve 14 having a large generating angle or cone angle. This fine sieve 14 leads in its central region into a sleeveshaped fine sieve component 15 which extends as far as the suction connection 12 of the discharge pump. At its periphery the fine sieve component 15 is surrounded by a further sieve tube 16, which is formed as a very fine sieve.This very fine sieve tube 16 runs at a distance from the sieve component 15 and extends from the fine sieve 14 covering the drain pan 11 to the pan base portion 17 surrounding the suction connection 12. In the first embodiment illustrated in Fig. 1, the sieve tube 16 has the form of a circular cylinder wall. In addition, in this embodiment, a removable, pot-shaped coarse sieve 18 having a handle 19 is inserted into the upper section of the sleeve-shaped fine sieve component 15.
When the circulating pump operates, the washing liquid flows in correspondence with the arrows shown in Fig. 1 to the suction connection 13. The greater part of the washing liquid follows the path corresponding to the arrows 20 through the funnelshaped sieve 14, which separates coarse and fine dirt particles from the liquid. These dirt particles travel into the fine sieve component 15 and partly settle in the suction connection 12. Coarse dirt residues which cause blocking of the discharge pump are retained in the coarse sieve 18.
A portion of the washing liquid, by contrast, follows the path corresponding to the arrows 21 through the coarse sieve 18, the fine sieve component 15 and the very fine sieve tube 16. Coarse dirt particles in this case are retained by the coarse sieve 18, fine particles by the fine sieve component 15 and very fine dirt particles by the very fine sieve tube 16.
In the second embodiment illustrated in Fig. 2, the very fine sieve tube 16' is funnel-shaped. It now recieves, in addition to the washing liquid penetrating through the sleeve-shaped fine sieve component 15, a considerable portion of the liquid which flows through the funnel-shaped fine sieve 14. With such a form of the sieve tube 16', its efficiency is highly increased, so that very fine dirt particles are filtered out in a comparatively short circulating period.
Moreover, in this embodiment, instead of the removable coarse sieve 18, an intermediate tray acting as a coarse sieve is incorporated in the central region of the fine sieve component 15.
In Fig. 2, the flow path of the washing liquid when the discharge pump is operating is also illustrated by arrows. The liquid proportion following the path according to the arrows 22 detaches the very fine dirt particles which have precipitated on the inner face of the sieve tube 16'. The fine dirt particles precipitated on the inner face of the fine sieve component 15 are extracted by the liquid flow corresponding to the arrows 23 and 22. Finally, a portion of the washing liquid, together with the fine dirt particles removed from the upper face of the fine sieve 14, follows a path according to the arrow 24 through the coarse sieve tray 18 to the suction connection 12 of the discharge pump.
Claims (5)
1. A dishwashing machine provided with an outlet sump having an outlet port in each of a side wall and the base thereof and with filter means arranged in the sump and comprising a first filter element having a wide-angle funnel-shaped upper sieve portion covering the top of the sump and a substantially sleeve-shaped lower sieve portion extending down from the central region of the upper sieve portion to the outlet port in the sump base, and a second filter element having a finer filter mesh than the first element and comprising a generally tubular sieve body which surrounds the peripheral wall of said lower sieve portion at a spacing therefrom and extends from said upper sieve portion down to a portion of the sump base surrounding the outlet port therein.
2. A machine as claimed in claim 1, comprising a circulating pump having an inlet communicating with the port in the sump side wall and a discharge pump having an inlet communicating with the port in the sump base.
3. A machine as claimed in either claim 1 or claim 2, the filter means further comprising a third filter element which has a coarser mesh than the first filter element and comprises a generally pot-shaped sieve body removably inserted into the lower sieve portion of the first filter element.
4. A machine as claimed in either claim 1 or claim 2, the filter means further comprising a third filter element which has a coarser mesh than the first filter element and comprises a sieve tray arranged in the lower sieve portion of the first filter element.
5. A dishwashing machine substantially as hereinbefore described with reference to either Fig. 1 or Fig. 2 of the accompanying drawings.
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
DE3114663A DE3114663C2 (en) | 1981-04-10 | 1981-04-10 | Sieve arrangement in the drain pan of the washing compartment of a dishwasher |
Publications (2)
Publication Number | Publication Date |
---|---|
GB2096456A true GB2096456A (en) | 1982-10-20 |
GB2096456B GB2096456B (en) | 1984-08-22 |
Family
ID=6129934
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
GB8204791A Expired GB2096456B (en) | 1981-04-10 | 1982-02-18 | Dishwashing machine sump filter |
Country Status (5)
Country | Link |
---|---|
AT (1) | AT389440B (en) |
DE (1) | DE3114663C2 (en) |
FR (1) | FR2503557B1 (en) |
GB (1) | GB2096456B (en) |
IT (1) | IT1150774B (en) |
Cited By (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2567745A1 (en) * | 1984-07-19 | 1986-01-24 | Bosch Siemens Hausgeraete | FILTERING DEVICE FOR DISHWASHING MACHINES |
EP0232236A1 (en) * | 1986-01-31 | 1987-08-12 | Aktiebolaget Electrolux | Arrangement in a dish-washing machine |
WO1991008700A1 (en) * | 1989-12-20 | 1991-06-27 | Vulcan Australia Limited | Filter screen assembly for dishwasher |
GB2284980A (en) * | 1993-12-23 | 1995-06-28 | Bosch Siemens Hausgeraete | Water filtering in a dishwashing machine |
EP0752231A1 (en) * | 1995-07-06 | 1997-01-08 | Merloni Elettrodomestici S.p.A. | Dishwashing machine with improved filtering system, and filtering method thereof |
EP1174075A2 (en) * | 2000-07-18 | 2002-01-23 | CANDY S.p.A. | Filtering unit for dishwasher |
US7347212B2 (en) | 2002-08-28 | 2008-03-25 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Filter device |
EP2087830A1 (en) * | 2008-02-08 | 2009-08-12 | Bonferraro S.p.A. | Filter assembly for industrial dishwasher |
FR2935882A1 (en) * | 2008-09-16 | 2010-03-19 | Fagorbrandt Sas | DISHWASHING MACHINE COMPRISING A DISHWASHER CLEANING WATER FILTRATION DEVICE. |
EP2263512A1 (en) * | 2009-06-17 | 2010-12-22 | Bonferraro S.p.A. | Hood-type industrial dishwasher with improved filter assembly |
CN101307687B (en) * | 2008-07-11 | 2012-01-25 | 西安石油大学 | Welding straight-line joint type sieve tube |
WO2012095315A3 (en) * | 2011-01-13 | 2012-12-20 | Winterhalter Gastronom Gmbh | Dishwasher having a cleaning device, and cleaning device |
US8708160B2 (en) | 2003-12-18 | 2014-04-29 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Device and method for filtering particles from a liquid in a dishwasher |
EP2759245A1 (en) * | 2013-01-23 | 2014-07-30 | Miele & Cie. KG | Dishwasher with a collecting pot |
US10004377B2 (en) | 2011-01-21 | 2018-06-26 | BSH Hausgeräte GmbH | Dishwasher |
WO2019068528A1 (en) * | 2017-10-06 | 2019-04-11 | BSH Hausgeräte GmbH | Water-using domestic appliance and method for operating a water-using domestic appliance |
CN111743487A (en) * | 2019-03-28 | 2020-10-09 | 博西华电器(江苏)有限公司 | Dish washing machine |
Families Citing this family (17)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE3339281C1 (en) * | 1983-10-28 | 1985-06-05 | Bosch-Siemens Hausgeräte GmbH, 7000 Stuttgart | Device in the drainage trough of a dishwasher |
DE3507229A1 (en) * | 1985-03-01 | 1986-09-04 | Miele & Cie GmbH & Co, 4830 Gütersloh | Device on dish-washing machines for filtering the circulated washing water |
SE468269B (en) * | 1989-01-11 | 1992-12-07 | Electrolux Ab | DISHWASHER WITH FINSIL AND MICROFILTERS ORGANIZED IN A COLLECTION CONTAINER |
DE8909554U1 (en) * | 1989-08-09 | 1989-10-05 | J. F. Nold GmbH & Co KG, 6081 Stockstadt | Drain strainer |
IT1248417B (en) * | 1990-05-04 | 1995-01-16 | Indesit S R L Stabilimento 3 | DISHWASHER MACHINE PERFECTED. |
DE4103056A1 (en) * | 1991-02-01 | 1992-08-13 | Licentia Gmbh | Dishwashing machine with concentric coarse and fine strainers - has underside of intermediate strainer extending to top of drain and spaced radially from finest strainer |
DE4131914C2 (en) * | 1991-09-25 | 1997-09-18 | Aeg Hausgeraete Gmbh | Sieve combination for household dishwashers |
DE4200416A1 (en) * | 1992-01-10 | 1993-07-15 | Licentia Gmbh | Divided-flow filter combination for domestic dishwashing machine - optimises self-cleaning by directing separate flows of rinsing water at inclined and vertical sections of fine filter. |
DE19636014B4 (en) * | 1995-11-24 | 2006-03-02 | AEG Hausgeräte GmbH | Apparatus and method for filtering a liquid |
DE102007060195A1 (en) | 2007-12-14 | 2009-06-18 | BSH Bosch und Siemens Hausgeräte GmbH | Water-conducting household appliance |
DE102007060197B4 (en) * | 2007-12-14 | 2016-07-07 | BSH Hausgeräte GmbH | Water-conducting household appliance |
FR2935883B1 (en) * | 2008-09-16 | 2012-08-17 | Fagorbrandt Sas | DISHWASHING MACHINE COMPRISING A DISHWASHER CLEANING WATER FILTRATION DEVICE. |
DE102009043262B3 (en) * | 2009-09-28 | 2011-02-10 | Winterhalter Gastronom Gmbh | Commercial dishwasher, has screen with lowest mesh width designed and arranged, so that water is reached through cloth of screen or through aperture in preset height of screen when water in remaining-region exceeds preset level |
DE102009055208A1 (en) * | 2009-12-22 | 2011-06-30 | BSH Bosch und Siemens Hausgeräte GmbH, 81739 | Filter device, domestic appliance and method of filtering |
PL2820997T3 (en) | 2012-07-20 | 2017-08-31 | Whirlpool EMEA S.p.A | Household dish-washing machine |
ITTO20120641A1 (en) | 2012-07-20 | 2014-01-21 | Indesit Co Spa | HOUSEHOLD WASHING AND / OR DRYING MACHINE |
CN107242841A (en) * | 2017-06-05 | 2017-10-13 | 九阳股份有限公司 | A kind of water tank cleaner |
Family Cites Families (13)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
DE7042053U (en) * | 1972-05-25 | Miele & Cie | Filter arrangement for a dishwasher | |
DE7146547U (en) * | 1973-06-07 | Miele & Cie | Dishwasher with a coarse filter and a fine filter | |
US3322282A (en) * | 1963-03-06 | 1967-05-30 | Whirlpool Co | Filtering apparatus |
FR1382742A (en) * | 1964-02-18 | 1964-12-18 | Whirlpool Co | Filter, especially for dishwashers |
FR2113854B1 (en) * | 1970-11-13 | 1976-10-29 | Miele & Cie | |
DE2451822C2 (en) * | 1974-10-31 | 1982-11-18 | Miele & Cie GmbH & Co, 4830 Gütersloh | Collecting pot for a dishwasher |
DE2639278A1 (en) * | 1976-09-01 | 1978-03-02 | Bosch Siemens Hausgeraete | DISHWASHER |
DE2656557C2 (en) * | 1976-12-14 | 1984-04-05 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Filter device for a dishwasher |
DE2657764A1 (en) * | 1976-12-20 | 1978-06-22 | Licentia Gmbh | DISHWASHER AND METHOD FOR OPERATING IT |
DE2703434C3 (en) * | 1977-01-28 | 1981-03-12 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | Device on dishwashers for filtering the rinse water |
DE2737440A1 (en) * | 1977-08-19 | 1979-02-22 | Licentia Gmbh | DISHWASHER |
DE2757616C3 (en) * | 1977-12-23 | 1981-03-12 | Licentia Patent-Verwaltungs-Gmbh, 6000 Frankfurt | dishwasher |
DE2832084A1 (en) * | 1978-07-21 | 1980-01-31 | Licentia Gmbh | Dishwasher machine with plastics filter - has two displaceable mesh sieves which set mesh size according to position |
-
1981
- 1981-04-10 DE DE3114663A patent/DE3114663C2/en not_active Expired
-
1982
- 1982-02-18 GB GB8204791A patent/GB2096456B/en not_active Expired
- 1982-02-24 AT AT0070882A patent/AT389440B/en not_active IP Right Cessation
- 1982-04-02 FR FR8205711A patent/FR2503557B1/en not_active Expired
- 1982-04-06 IT IT20600/82A patent/IT1150774B/en active
Cited By (25)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
FR2567745A1 (en) * | 1984-07-19 | 1986-01-24 | Bosch Siemens Hausgeraete | FILTERING DEVICE FOR DISHWASHING MACHINES |
EP0232236A1 (en) * | 1986-01-31 | 1987-08-12 | Aktiebolaget Electrolux | Arrangement in a dish-washing machine |
WO1991008700A1 (en) * | 1989-12-20 | 1991-06-27 | Vulcan Australia Limited | Filter screen assembly for dishwasher |
GB2284980A (en) * | 1993-12-23 | 1995-06-28 | Bosch Siemens Hausgeraete | Water filtering in a dishwashing machine |
GB2284980B (en) * | 1993-12-23 | 1996-12-11 | Bosch Siemens Hausgeraete | Water filtering in a dishwashing machine |
EP0752231A1 (en) * | 1995-07-06 | 1997-01-08 | Merloni Elettrodomestici S.p.A. | Dishwashing machine with improved filtering system, and filtering method thereof |
EP1174075A2 (en) * | 2000-07-18 | 2002-01-23 | CANDY S.p.A. | Filtering unit for dishwasher |
EP1174075A3 (en) * | 2000-07-18 | 2002-09-25 | CANDY S.p.A. | Filtering unit for dishwasher |
US7347212B2 (en) | 2002-08-28 | 2008-03-25 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Filter device |
US8708160B2 (en) | 2003-12-18 | 2014-04-29 | Bsh Bosch Und Siemens Hausgeraete Gmbh | Device and method for filtering particles from a liquid in a dishwasher |
EP2087830A1 (en) * | 2008-02-08 | 2009-08-12 | Bonferraro S.p.A. | Filter assembly for industrial dishwasher |
CN101307687B (en) * | 2008-07-11 | 2012-01-25 | 西安石油大学 | Welding straight-line joint type sieve tube |
FR2935882A1 (en) * | 2008-09-16 | 2010-03-19 | Fagorbrandt Sas | DISHWASHING MACHINE COMPRISING A DISHWASHER CLEANING WATER FILTRATION DEVICE. |
EP2165637A3 (en) * | 2008-09-16 | 2014-10-29 | FagorBrandt SAS | Dish washer with a filtering device for the water to clean crockery |
EP2263512A1 (en) * | 2009-06-17 | 2010-12-22 | Bonferraro S.p.A. | Hood-type industrial dishwasher with improved filter assembly |
EP2263512B1 (en) | 2009-06-17 | 2015-06-17 | Bonferraro S.p.A. | Hood-type industrial dishwasher with improved filter assembly |
WO2012095315A3 (en) * | 2011-01-13 | 2012-12-20 | Winterhalter Gastronom Gmbh | Dishwasher having a cleaning device, and cleaning device |
US10004377B2 (en) | 2011-01-21 | 2018-06-26 | BSH Hausgeräte GmbH | Dishwasher |
EP2759245A1 (en) * | 2013-01-23 | 2014-07-30 | Miele & Cie. KG | Dishwasher with a collecting pot |
WO2019068528A1 (en) * | 2017-10-06 | 2019-04-11 | BSH Hausgeräte GmbH | Water-using domestic appliance and method for operating a water-using domestic appliance |
US20200214529A1 (en) * | 2017-10-06 | 2020-07-09 | BSH Hausgeräte GmbH | Water-using domestic appliance and method for operating a water-using domestic appliance |
EP4179946A1 (en) * | 2017-10-06 | 2023-05-17 | BSH Hausgeräte GmbH | Method for operating a water-conducting domestic appliance |
US11910979B2 (en) * | 2017-10-06 | 2024-02-27 | BSH Hausgeräte GmbH | Water-using domestic appliance and method for operating a water-using domestic appliance |
CN111743487A (en) * | 2019-03-28 | 2020-10-09 | 博西华电器(江苏)有限公司 | Dish washing machine |
CN111743487B (en) * | 2019-03-28 | 2024-02-02 | 博西华电器(江苏)有限公司 | Dish-washing machine |
Also Published As
Publication number | Publication date |
---|---|
AT389440B (en) | 1989-12-11 |
ATA70882A (en) | 1989-05-15 |
FR2503557B1 (en) | 1985-11-29 |
GB2096456B (en) | 1984-08-22 |
DE3114663A1 (en) | 1982-10-28 |
IT1150774B (en) | 1986-12-17 |
DE3114663C2 (en) | 1992-11-26 |
FR2503557A1 (en) | 1982-10-15 |
IT8220600A0 (en) | 1982-04-06 |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
GB2096456A (en) | Dishwashing machine sump filter | |
US6418943B1 (en) | Wash liquid circulation system for a dishwasher | |
US4501659A (en) | Skimmer apparatus for swimming pools | |
US5129411A (en) | Liquid level control arrangement for a dishwasher | |
US2275428A (en) | Aquarium water conditioning device | |
US5651765A (en) | Blood filter with concentric pleats and method of use | |
US6896719B2 (en) | Dirt collecting system for a floor care appliance | |
CN109715017A (en) | Dust collect plant and the vacuum cleaner for being provided with the dust collect plant | |
NL9100480A (en) | VACUUM CLEANER. | |
US4925466A (en) | Filter cartridge assembly | |
KR940003587A (en) | Multistage oil separator | |
DE102004026768A1 (en) | Handle assembly for vacuum cleaner, has cyclone dust collector separating dust by sucking and discharging clean air through handle pipe, where collector directly connects suction port assembly to auxiliary suction tool of cleaner | |
WO1996004944A1 (en) | Drip chamber head | |
US4798670A (en) | Skimmer vacuum filter apparatus | |
US4631838A (en) | Device for a roasting chamber for roasting green coffee beans | |
SE457596B (en) | DEVICE AT A DISHWASHER | |
US4088578A (en) | Process and apparatus for separating oil from water contaminated with oil | |
US4290883A (en) | Classifying device for aggregates immersed in a fluid | |
SE456636B (en) | DEVICE FOR FILTERING OF THE RINSE WATER BY DISHWASHERS | |
AU593377B2 (en) | Improvements in floor polishing machine | |
ES1004592U (en) | Dishwasher with self-cleaning protective filter pump. (Machine-translation by Google Translate, not legally binding) | |
JPS6125846Y2 (en) | ||
US6276936B1 (en) | Dental separator for solids from a solids/liquid mixture | |
US5147544A (en) | Blood filter in medical devices | |
US1805824A (en) | Air filter |
Legal Events
Date | Code | Title | Description |
---|---|---|---|
PE20 | Patent expired after termination of 20 years |
Effective date: 20020217 |