US2524581A - Automatic washing apparatus - Google Patents

Automatic washing apparatus Download PDF

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Publication number
US2524581A
US2524581A US694188A US69418846A US2524581A US 2524581 A US2524581 A US 2524581A US 694188 A US694188 A US 694188A US 69418846 A US69418846 A US 69418846A US 2524581 A US2524581 A US 2524581A
Authority
US
United States
Prior art keywords
container
liquid
siphons
discharge
pipettes
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.)
Expired - Lifetime
Application number
US694188A
Other languages
English (en)
Inventor
Edwin C Weiskopf
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to US694188A priority Critical patent/US2524581A/en
Priority to GB32344/48A priority patent/GB657574A/en
Priority to NL153502A priority patent/NL77198C/xx
Priority to FR1017929D priority patent/FR1017929A/fr
Priority to DEW2082A priority patent/DE825761C/de
Priority to CH283479D priority patent/CH283479A/de
Priority to BE497052D priority patent/BE497052A/xx
Application granted granted Critical
Publication of US2524581A publication Critical patent/US2524581A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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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
    • 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
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • 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
    • B01L3/02—Burettes; Pipettes
    • B01L3/021—Pipettes, i.e. with only one conduit for withdrawing and redistributing liquids
    • B01L3/0213—Accessories for glass pipettes; Gun-type pipettes, e.g. safety devices, pumps
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2713—Siphons
    • Y10T137/272—Plural
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2713—Siphons
    • Y10T137/2774—Periodic or accumulation responsive discharge
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T137/00—Fluid handling
    • Y10T137/2713—Siphons
    • Y10T137/2842—With flow starting, stopping or maintaining means
    • Y10T137/2849—Siphon venting or breaking

Definitions

  • My present invention relates to automatic washing apparatus intended. primarily for cleaning pipettes.
  • the primary object of the present invention is to provide a pipette washer which, operating upon the principle of the siphon, is of such character as to have a rapid operating cycle including, especially, a very rapid dischargeof the water or other washing liquid.
  • the apparatus for washing pipettes the latter are disposed in substantially vertical position within the containe'r in which water or other washing liquid is admitted and periodically discharged by siphon action whereby the pipettes are washed both internally and externally thereof by the Water- 4 Claims. (01. 137-106) which flows upwardly in the container around and through the pipettes and downwardly in the container around and through the pipettes.
  • a further object of the invention is to provide a washer which has a rapid operating cycle and which can be of small size whereby the washer is highly eflicient and effective and yet takes up but little space.
  • Fig. 1 is a, side view of the washer, the outer casing or jacket being cut away for the purpose of illustration; V
  • Fig. 2 is a verticalsectional view of the washer and also shows a pipette rack or holder in position in the washer;
  • Fig. 3 is a top view of the washer
  • Fig. 4 is a sectional view on the line 44of Fig. 2.
  • the automatic washing apparatus of thepresent invention comprises a container [0 which, as here shown, is preferably cylindrical but which can be of any other suitable form.
  • Said container is open at the top and has a closed bottom l2 spaced from the lower end of the supporting base M which is preferably, but not necessarily, an in-' tegral' part of the container cylinder.
  • Said container is provided'with a liquid inlet [6 and with a plurality of liquid outlet openings 18, all located near the bottomof the container.
  • the liquid outlet openings I 8 are each larger than the liquid inlet l6 so that the outflow or discharge,
  • Outlets l8 are, of equal size and are located at the same level in the container.
  • siphons are co-equal or identical' in size and arrangement for operation in unison.
  • Each siphon includes an up-leg 22, the lowerend of which communicates with the interior of container Ill through the companion opening l8, and a downleg 24 which is longer thanithe up-leg.
  • the open lower ends of the siphon down-legs are preferably connected to'a common discharge spout or coupling 26. 1
  • An equalizing tube 28 of smaller cross section or diameter than the tube of the siphon 2D is connected at its opposite ends to the siphons 20, re-
  • tube 28 is connected to the uplegs of said siphons at the upper ends thereof just below theU-bends 3ll-of the siphons.
  • a tube 32 is connected at its upper end to tube 28, between the opposite ends of the latter, and at its lower end to an opening 40 in container Ill, forming a fluid-passage between the latter and tube 28.
  • Opening 40 is locatedabove outlet or discharge openings I8 so that when theliquid in container Ill drops to the point of said opening 40, in the discharge action of siphons 20, said opening 40 constitutes a vent to cause the simultaneous cutolf or interruption of the siphon-discharge op-y erations of both siphons.
  • the washing apparatus is preferably provided, as shown, with an outer enclosing casing or jacket 42 including a cylinder '44 and upper and lower annular closure membersor plates 46 and 48.
  • Said jacket is provided with an opening 5! for the liquid supply tube 52, and with an opening 54 for the discharge spout 0r coupling 26.
  • Said jacket encloses the siphons and the tubes 28 and 32, thus preventing damage to the latter and eliminating externally projecting parts.
  • a rack 53 Saidrack comprises a bottom I 55 whichis formed of wire mesh or is otherwise perforated to permit the passage of liquid therethrough.
  • Said bottom is connected to a metal frame consisting of side bands 56 having outwardly bent or offset portions 58 and with an upper bent part to form a handle 60.
  • 'A'plurality of spaced rings 62 are secured to side straps 56 for holding the pipettes or other articles in the rack.
  • An annular member 84 is secured at the upper end of the rack to the outwardly offset portions 58.
  • Tubes 28 and 30 provide for action of siphons E0 in unison,
  • Automatic washing apparatus comprising a container provided with a liquid inlet and with a plurality of liquid outlets, siphons connected to said outlets, respectively, said siphons having an intermittent discharge operation in unison during flow of liquid into the container for periodically discharging the liquid from said container, and means for interrupting the discharge operation of both of said siphons at the same time when the liquid in the container drops to a predetermined level, said last mentioned means comprising means forming a fiuid passage between said siphons above said liquid outlets of the container, and means forming a fluid passage between said first mentioned passage and said container at a point in the latter above said liquid outlets and below the upper ends of the up-legs of said siphons.
  • Automatic Washin apparatus comprising a container provided with a liquid inlet and with a plurality of liquid outlets, said outlets being of the same size and at the same level in the container, co-equal siphons connected to said outlets, respectively, said siphons having an intermittent discharge operation in unison during flow of liquid into the container: for periodically discharging the liquid irom said container, and.
  • said last mentioned means comprising a tube connected at its opposite ends to the up-legs of the siphons, respectively, at points above said liquid outlets of the container and forming a fluid-passage between said uplegs, a vent opening in said container at a point above said liquid outlets and below the upper ends of said up-legs of said siphons, and-a tube connected at its opposite ends to said vent and to said first mentioned tube, respectively.
  • Automatic washing apparatus comprising a. container provided with a liquid inlet and with a plurality of liquid outlets, said outlets being of the same size and at the same level in the con-- of, a vent opening in said container at a point above said liquid outlets and below the upper ends of said up-legs. of said siphons, and a tube connected at its opposite ends to said vent and to said first mentioned tube, respectively.
  • Automatic washing apparatus comprising a container provided with a liquid inlet and with a plurality of liquid outlets, siphons connected to said outlets, respectively, said siphons having an intermittent discharge operation in unison during flow of liquid into the container for periodically discharging the liquid from said container, and means for interrupting the discharge operation of both of "said siphons at the same time when the liquid in the container drops to a predetermined level, said last mentioned means comprising means forming a fluid passage betweensaid, siphons above said liquid outlets of the con EDWIN c. WEISKOPF. 10

Landscapes

  • Health & Medical Sciences (AREA)
  • Clinical Laboratory Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Automatic Analysis And Handling Materials Therefor (AREA)
  • Devices For Use In Laboratory Experiments (AREA)
  • Cleaning By Liquid Or Steam (AREA)
US694188A 1946-08-31 1946-08-31 Automatic washing apparatus Expired - Lifetime US2524581A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US694188A US2524581A (en) 1946-08-31 1946-08-31 Automatic washing apparatus
GB32344/48A GB657574A (en) 1946-08-31 1948-12-14 Improvements in washing apparatus for pipettes or similar tubular articles
NL153502A NL77198C (de) 1946-08-31 1950-05-12
FR1017929D FR1017929A (fr) 1946-08-31 1950-05-15 Appareil de lavage automatique
DEW2082A DE825761C (de) 1946-08-31 1950-05-17 Automatischer Waschapparat, insbesondere fuer Pipetten u. dgl.
CH283479D CH283479A (de) 1946-08-31 1950-05-25 Automatischer Waschapparat, insbesondere für Pipetten und dergleichen.
BE497052D BE497052A (de) 1946-08-31 1950-07-17

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US694188A US2524581A (en) 1946-08-31 1946-08-31 Automatic washing apparatus

Publications (1)

Publication Number Publication Date
US2524581A true US2524581A (en) 1950-10-03

Family

ID=10337161

Family Applications (1)

Application Number Title Priority Date Filing Date
US694188A Expired - Lifetime US2524581A (en) 1946-08-31 1946-08-31 Automatic washing apparatus

Country Status (7)

Country Link
US (1) US2524581A (de)
BE (1) BE497052A (de)
CH (1) CH283479A (de)
DE (1) DE825761C (de)
FR (1) FR1017929A (de)
GB (1) GB657574A (de)
NL (1) NL77198C (de)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933097A (en) * 1957-02-04 1960-04-19 Belray Chemical Co Inc Automatic siphonic washing apparatus

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3389712A (en) * 1966-09-09 1968-06-25 Nalge Company Inc Rinser
JPS56100280A (en) * 1979-08-28 1981-08-12 Hideyuki Nishizawa Washing drier for glass small tube

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US974336A (en) * 1910-01-10 1910-11-01 Arnold D Alt Apparatus for washing photographic prints.
US1721797A (en) * 1926-12-22 1929-07-23 Tom L Taylor Siphon control for washers
US2089303A (en) * 1937-04-07 1937-08-10 Horn And Hardart Baking Compan Hot water urn
US2345284A (en) * 1942-04-02 1944-03-28 Elmer E Myers Pipette washing apparatus
US2418751A (en) * 1944-05-03 1947-04-08 Hynson Westcott & Dunning Inc Pipette washer

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US974336A (en) * 1910-01-10 1910-11-01 Arnold D Alt Apparatus for washing photographic prints.
US1721797A (en) * 1926-12-22 1929-07-23 Tom L Taylor Siphon control for washers
US2089303A (en) * 1937-04-07 1937-08-10 Horn And Hardart Baking Compan Hot water urn
US2345284A (en) * 1942-04-02 1944-03-28 Elmer E Myers Pipette washing apparatus
US2418751A (en) * 1944-05-03 1947-04-08 Hynson Westcott & Dunning Inc Pipette washer

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2933097A (en) * 1957-02-04 1960-04-19 Belray Chemical Co Inc Automatic siphonic washing apparatus

Also Published As

Publication number Publication date
NL77198C (de) 1955-02-15
BE497052A (de) 1950-11-16
CH283479A (de) 1952-06-15
FR1017929A (fr) 1952-12-22
DE825761C (de) 1951-12-20
GB657574A (en) 1951-09-19

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