US3595252A - Apparatus for controlled washing by de-ionized high-purity, recirculated water, particularly adapted for scientific glassware - Google Patents

Apparatus for controlled washing by de-ionized high-purity, recirculated water, particularly adapted for scientific glassware Download PDF

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Publication number
US3595252A
US3595252A US740366A US3595252DA US3595252A US 3595252 A US3595252 A US 3595252A US 740366 A US740366 A US 740366A US 3595252D A US3595252D A US 3595252DA US 3595252 A US3595252 A US 3595252A
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water
partition
housing
washing
drain
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US740366A
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English (en)
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Giovanni Conte
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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B08—CLEANING
    • B08B—CLEANING IN GENERAL; PREVENTION OF FOULING IN GENERAL
    • B08B9/00—Cleaning hollow articles by methods or apparatus specially adapted thereto
    • B08B9/08—Cleaning containers, e.g. tanks
    • B08B9/20—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought
    • B08B9/28—Cleaning containers, e.g. tanks by using apparatus into or on to which containers, e.g. bottles, jars, cans are brought the apparatus cleaning by splash, spray, or jet application, with or without soaking
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L13/00—Cleaning or rinsing apparatus
    • B01L13/02—Cleaning or rinsing apparatus for receptacle or instruments
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01L—CHEMICAL OR PHYSICAL LABORATORY APPARATUS FOR GENERAL USE
    • B01L3/00—Containers or dishes for laboratory use, e.g. laboratory glassware; Droppers
    • B01L3/56—Labware specially adapted for transferring fluids
    • B01L3/569—Glassware

Definitions

  • This invention relates to an apparatus for controlled washing in high-purity deionized recirculated water ll5 megohm), of scientific glassware, or articles, or materials in general, particularly of cumbersome laboratory glassware, such as the sowalled beaker" glasses, balloons, flasks, cylinders and the like.
  • the apparatus substantially com prises a housing adapted to use deionized (i.e. demineralized) water producedby a deionizing device having one or more columns of ionexchange resin, which columns are preferably of the mixed layer and interchangeable type.
  • deionizing device is incorporated within the tank, and this affords recirculation, that is reuse, of wash water by means of a motordriven pump included in the circuit.
  • the system is provided with a conductimeter or the like to measure the specific resistance and check the water before and after the washing operation.
  • the assembly is provided also with piping, valves and fittings for connection to the washing system.
  • the apparatus of the invention in order to simultaneously wash a considerable amount of glassware is adapted for open-cycle operation by using a relatively small housing not requiring watertight closure, and which affords economical and easy washing with high-purity deionized water (l0-l5 megohm) of any scientific glassware, both of small size (test tubes and pipettes) and of larger size and various shapes (such as the so-called beaker glasses, balloons, flasks, cylinders and the like), with the possibility of checking for each article the wash water and hence the corresponding degree of cleanliness.
  • high-purity deionized water l0-l5 megohm
  • FIG. I is a diagrammatic elevation of the assembly forming the apparatus of the invention:
  • FIG. 2 is a sectional view on line 2--2 of FIG. 1 and FIG. 3 is an enlarged view of the drain and perforated disc cover in FIG. 1.
  • the apparatus substantially comprises a quadrangular housing 1 made of suitable plastic sheet material, such as reinforced transparent PVC or the like.
  • a partition or bottom 2 that is inclined toward the center so that all water is conveyed by gravity into the central drain 3 opening into a tank 4 formed by the bottom 2 for a width that is approximately three-fourths of the total width of the housing, and by a transverse wall 6.
  • the central drain in the bottom 2 is constituted by a recessed dish-shaped portion 3 which is formed in the bottom 2 around a hole to the underside of which is fixed an elbow 3a.
  • the dish-shaped portion 3 which is preferably of circular outline, has a stepped marginal edge serving as a seat for inserting therein a perforated disc 3c acting as a strainer.
  • This disc has a central hole for receiving an elbow-shaped pipe 3b coming from a lower cell 7.
  • the pipe 3b projects upwardly from the perforated disc 30 to an extent enabling the placing therearound of a protecting removable ring-shaped washer 29 and the desired end, depending upon the job to be performed, of the discharge conduits 28, 30 or 31 of washing devices 27, 20 or 21.
  • the projecting end of pipe 3b is located at such a level as to avoid that water flowing on the bottom 2 of the housing I may enter the cell 7.
  • Said cell 7 is fixed to a plate or diaphragm 5a that in turn is fixed by stainless steel screws or bolts to a transverse wall 5 of said tank 4, this wall having to this purpose a suitable opening.
  • An overflow hole is in the upper portion thereof so that all times said cell will be full of water and the electrodes therein will be submerged.
  • the cell 7 contains two electrodes provided with two perfectly insulated wires that reach a small hole in said diaphragm and project into a chamber 8 underneath partition 2 and adjacent tank 4.
  • the opposed ends of said wires are connected to a megohmmeter 33.
  • Fixed to the diaphragm is a pipe 9 one end of which is bent downwardly so as to dip at a central well 10 in the bottom of tank 4.
  • the other end of pipe 9 is provided with a nipple and projects slightly from the diaphragm so that it can be connected through a hose to a pump 11 in the chamber 8.
  • Said well It) is formed by a suitable, threaded cylinder, welded to the central portion of bottom 6 and closed by a threaded cup-shaped cover.
  • the well 10 enables, through pump 11 and pipe 9, all the water in the tank to be sucked and, if desired, enables the tank to be completely drained by removing the cup-shaped cover.
  • the hose connecting the pipe 9 to the pump 11 must be long enough to permit, alternatively (with the housing in a raised position) a particular connection that will be described hereinafter.
  • the housing I is supported on a subhousing 12 of the same material and approximately of the same size but of smaller height. Said subhousing is open at the top and serves both to support the housing I and to partially enclose the pump 11, and to enclose the column (or columns) 13 of ion-exchange resin and the attendant connecting pipe, preferably ofthe flexible type.
  • the outlet pipe 14 from column 13 has two upper bifurcations, one of which is connected to a valve 15 and the other to a nipple l6, and both of them are fixed to, and sealingly pass through, the bottom 2 of housing 1.
  • the valve 15 and the nipple 16 can be easily connected either to respective washing devices 21 and or to the washwater outlets 18a.
  • the subhousing 12 is watertight and, therefore, can collect any water leaking from the tank, and if necessary all the water therefrom in case of failure of a connecting pipe.
  • the pump 11 is arranged in an elevated relation with respect to the bottom of the subhousing 12.
  • the housing 1 is supported on a shoulder welded along the inner side of the upper edge of subhousing l2, and in order to inspect the pump and piping, and to replace the column (or columns) of resin, it can be raised by lateral pivotal movement around hinge means 19.
  • housing 1 On the bottom of housing 1 is arranged a device 20 for the washing of pipettes (of the siphon type usually employed in laboratories) and a device 21 for the washing of test tubes. These two devices are connected, respectively, through a conduit 18, a valve 22 and a conduit 23 to the nipple l6, and through pipe 17 to valve 15, respectively.
  • Conduit 18 extends to the upper portion of housing 1 and has a certain number of nipples, one of which is provided with a valve and is connected to device 20 and the others are connected to several water outlets 18a for washing of bigger glassware.
  • the latter is disposed on an intermediate sheet member that is preferably formed by a fixed portion 26 and two removable portions 24 and 25.
  • the device 20 projecting upwardly through member 26, can also be used at the same time as the other wash means.
  • the latter device can be provided with a cover and its discharge opening can be connected to the central drain 3 of housing 1 through a suitable tubular removable extension 3] provided with an end portion in the form of a 90 elbow.
  • This removable extension which may consist of a flexible hose serves to connect the end portion of the discharge pipe to the central drain, so that water can enter directly the pipe 3b leading to cell 7.
  • the device 21 for washing test tubes substantially comprises a sheet of rigid plastics with suitable edge rims to form a tray of appropriate size.
  • Said tray is provided, on one side, with a nipple for connection to conduit 17.
  • the tray is provided with an elevated partition having about lOO circular holes of suitable diameter. Said holes are engaged by an equal number of tube lengths of corresponding diameter, made of rigid plastics, having a top plug with a hole of l2 mm. to permit passage of wash water under pressure in the form of a spray or jet. Test tubes to be washed are placed upside down on these tube lengths.
  • the partition supporting the tube lengths is provided with a peripheral rim of sufficient height to collect the water falling from the test tubes and convey it into a drain pipe 30 having an end portion in the form of a 90 elbow.
  • the water so collected has a reduced area of contact with CO in the air, and when all test tubes will be perfectly cleaned it will reach easily such values of specific resistance as 56 megohm.
  • device 21 If it is desired to check or detect the quality of circulated water, device 21 must be moved toward the center until the elbow of its discharge pipe 30 will register with the central drain opening 3 in the housing, so that water can enter directly into the small tube 3b connected to cell 7.
  • the check of wash water in the various devices is to be made separately, inasmuch as the single cell 7, obviously, cannot receive water from two different devices simultaneously.
  • An apparatus for controlled washing of laboratory glassware, articles and materials that are substantially not water soluble by means of high-purity demineralized recirculated water of substantially 10 to l5 megohms resistance comprising a housing substantially consisting of a transparent plastic material, said housing having a partition cemented therein, said housing having also a plurality of movable washing devices for washing particular articles, a drain in said partition, a collecting tank formed on the underside of said partition by said cementing, a motor-driven pump for recirculating said demineralized water, a demineralizing device having at least one column of ion-exchange resin, said column being preferably one of the mixed layer interchangeable type, and an electrode-containing cell and a conductimeter connected to said cell, said conductimeter measuring the specific resistance and quality of said circulating water, said recirculation in said apparatus consisting of a system of pipe lines, flexible conduits and said pump whereby said demineralized water is taken from said tank by said pump, delivered through said demineral
  • An apparatus for controlled washing of laboratory glassware, articles and materials that are substantially not water soluble by means of high-purity demineralized recirculated water of substantially 10 to 15 megohms resistance comprising a housing substantially consisting of a transparent plastic material, said housing having a partition cemented therein, said housing having also a plurality of washing devices for washing particular articles, a drain in said partition, a collecting tank formed on the underside of said partition by said cementing, a motor-driven pump for recirculating said demineralized water, a demineralizing device having at least one column of ion-exchange resin, said column being preferably one of the mixed later interchangeable type, and an electrode-containing cell and a conductimeter connected to said cell, said conductimeter measuring the specific resistance and quality of said circulating water, said recirculation in said apparatus consisting of a system of pipe lines, flexible conduits and said pump whereby said demineralized water is taken from said tank by said pump, delivered through said demineralizing column and through said
  • said cell being fitted in said washer for being reinforced and protected thereby and a vertical removable conduit having a funnel at the top thereof, said conduit fitting over said tubular extension, projecting beyond and held vertically by said central removable partition.

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  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Cleaning By Liquid Or Steam (AREA)
US740366A 1967-06-28 1968-06-26 Apparatus for controlled washing by de-ionized high-purity, recirculated water, particularly adapted for scientific glassware Expired - Lifetime US3595252A (en)

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Application Number Priority Date Filing Date Title
IT711767 1967-06-28

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US3595252A true US3595252A (en) 1971-07-27

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US (1) US3595252A (enrdf_load_html_response)
DE (1) DE1773654A1 (enrdf_load_html_response)
FR (1) FR1575681A (enrdf_load_html_response)
GB (1) GB1208028A (enrdf_load_html_response)

Cited By (19)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973572A (en) * 1974-08-12 1976-08-10 Alpha Metals, Inc. Self-purging apparatus for determining the quantitative presence of derived ions
US4142539A (en) * 1977-09-21 1979-03-06 Hobart Corporation Sanitizer alert system
US4633893A (en) * 1984-05-21 1987-01-06 Cfm Technologies Limited Partnership Apparatus for treating semiconductor wafers
US4738272A (en) * 1984-05-21 1988-04-19 Mcconnell Christopher F Vessel and system for treating wafers with fluids
US4740249A (en) * 1984-05-21 1988-04-26 Christopher F. McConnell Method of treating wafers with fluid
US4776891A (en) * 1985-09-23 1988-10-11 Murtha James L Method and means of rinsing eating utensils
US4836229A (en) * 1987-04-30 1989-06-06 Ecolab Inc. Dishwashing apparatus including a flip-top solid detergent dispenser
US4856544A (en) * 1984-05-21 1989-08-15 Cfm Technologies, Inc. Vessel and system for treating wafers with fluids
US4938240A (en) * 1987-04-30 1990-07-03 Ecolab Inc. Dishwashing apparatus including a flip-flop solid detergent dispenser
US5190065A (en) * 1991-11-29 1993-03-02 International Business Machines Corporation Self-contained washing unit for printed circuit boards
US5396178A (en) * 1992-05-18 1995-03-07 Dober Chemical Corporation Apparatus and method for determining that equipment is clean
US6136724A (en) * 1997-02-18 2000-10-24 Scp Global Technologies Multiple stage wet processing chamber
US6143087A (en) * 1991-10-04 2000-11-07 Cfmt, Inc. Methods for treating objects
US6281020B1 (en) * 1996-06-17 2001-08-28 Usui Kokusai Sangyo Kaisha Limited Method of testing cleanness of inner surfaces of the parts of a fuel injection system
US6523204B1 (en) * 1999-10-27 2003-02-25 Electrolux Systems De Blanchisserie Method of checking the aseptic nature of washing before opening at least one door of a washing machine
WO2013028641A1 (en) * 2011-08-19 2013-02-28 Akrion Systems Llc Reduced consumption stand alone rinse tool having self-contained closed-loop fluid circuit, and method of rinsing substrates using the same
CN105903737A (zh) * 2016-05-31 2016-08-31 镇江中化聚氨酯工业设备有限公司 一种喷淋过滤装置
CN109127618A (zh) * 2018-07-24 2019-01-04 毛荣昊 一种中学化学教学仪器清洗装置
US10973237B2 (en) * 2012-03-05 2021-04-13 Metalquimia, Sa Needle cleaning system including a needle cleaning machine and a plurality of needles for injecting fluids into meat products

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103394493A (zh) * 2013-06-29 2013-11-20 赵惠平 检验清洗器

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628194A (en) * 1949-12-30 1953-02-10 Permutit Co Process of and apparatus for regenerating ion exchangers
US2825666A (en) * 1955-05-12 1958-03-04 Gen Electric Methods of and apparatus for washing dishes
FR1249677A (fr) * 1960-03-01 1960-12-30 Appareil pour la déminéralisation de l'eau par échanges ioniques
US3087504A (en) * 1960-04-14 1963-04-30 Constructa Werke Gmbh Dishwasher
US3276458A (en) * 1963-01-16 1966-10-04 Arthur H Iversen Ultra pure water recirculating system

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2628194A (en) * 1949-12-30 1953-02-10 Permutit Co Process of and apparatus for regenerating ion exchangers
US2825666A (en) * 1955-05-12 1958-03-04 Gen Electric Methods of and apparatus for washing dishes
FR1249677A (fr) * 1960-03-01 1960-12-30 Appareil pour la déminéralisation de l'eau par échanges ioniques
US3087504A (en) * 1960-04-14 1963-04-30 Constructa Werke Gmbh Dishwasher
US3276458A (en) * 1963-01-16 1966-10-04 Arthur H Iversen Ultra pure water recirculating system

Cited By (21)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3973572A (en) * 1974-08-12 1976-08-10 Alpha Metals, Inc. Self-purging apparatus for determining the quantitative presence of derived ions
US4142539A (en) * 1977-09-21 1979-03-06 Hobart Corporation Sanitizer alert system
US4633893A (en) * 1984-05-21 1987-01-06 Cfm Technologies Limited Partnership Apparatus for treating semiconductor wafers
US4738272A (en) * 1984-05-21 1988-04-19 Mcconnell Christopher F Vessel and system for treating wafers with fluids
US4740249A (en) * 1984-05-21 1988-04-26 Christopher F. McConnell Method of treating wafers with fluid
US4856544A (en) * 1984-05-21 1989-08-15 Cfm Technologies, Inc. Vessel and system for treating wafers with fluids
US4776891A (en) * 1985-09-23 1988-10-11 Murtha James L Method and means of rinsing eating utensils
US4836229A (en) * 1987-04-30 1989-06-06 Ecolab Inc. Dishwashing apparatus including a flip-top solid detergent dispenser
US4938240A (en) * 1987-04-30 1990-07-03 Ecolab Inc. Dishwashing apparatus including a flip-flop solid detergent dispenser
US6143087A (en) * 1991-10-04 2000-11-07 Cfmt, Inc. Methods for treating objects
US6348101B1 (en) 1991-10-04 2002-02-19 Cfmt, Inc. Methods for treating objects
US5190065A (en) * 1991-11-29 1993-03-02 International Business Machines Corporation Self-contained washing unit for printed circuit boards
US5396178A (en) * 1992-05-18 1995-03-07 Dober Chemical Corporation Apparatus and method for determining that equipment is clean
US6281020B1 (en) * 1996-06-17 2001-08-28 Usui Kokusai Sangyo Kaisha Limited Method of testing cleanness of inner surfaces of the parts of a fuel injection system
US6136724A (en) * 1997-02-18 2000-10-24 Scp Global Technologies Multiple stage wet processing chamber
US6523204B1 (en) * 1999-10-27 2003-02-25 Electrolux Systems De Blanchisserie Method of checking the aseptic nature of washing before opening at least one door of a washing machine
WO2013028641A1 (en) * 2011-08-19 2013-02-28 Akrion Systems Llc Reduced consumption stand alone rinse tool having self-contained closed-loop fluid circuit, and method of rinsing substrates using the same
US20140305471A1 (en) * 2011-08-19 2014-10-16 Akrion Systems Llc Reduced consumptions stand alone rinse tool having self-contained closed-loop fluid circuit, and method of rinsing substrates using the same
US10973237B2 (en) * 2012-03-05 2021-04-13 Metalquimia, Sa Needle cleaning system including a needle cleaning machine and a plurality of needles for injecting fluids into meat products
CN105903737A (zh) * 2016-05-31 2016-08-31 镇江中化聚氨酯工业设备有限公司 一种喷淋过滤装置
CN109127618A (zh) * 2018-07-24 2019-01-04 毛荣昊 一种中学化学教学仪器清洗装置

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DE1773654A1 (de) 1972-01-20
GB1208028A (en) 1970-10-07
FR1575681A (enrdf_load_html_response) 1969-07-25

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