US3517862A - Liquid detergent metering device - Google Patents

Liquid detergent metering device Download PDF

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Publication number
US3517862A
US3517862A US713697A US3517862DA US3517862A US 3517862 A US3517862 A US 3517862A US 713697 A US713697 A US 713697A US 3517862D A US3517862D A US 3517862DA US 3517862 A US3517862 A US 3517862A
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United States
Prior art keywords
receptacle
chamber
metering
liquid detergent
inlet
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Expired - Lifetime
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US713697A
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English (en)
Inventor
Carlo Bianco
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.)
ELBI Sas DEI FRATELLI BIANCO
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ELBI Sas DEI FRATELLI BIANCO
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    • 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
    • D06F39/00—Details of washing machines not specific to a single type of machines covered by groups D06F9/00 - D06F27/00 
    • D06F39/02—Devices for adding soap or other washing agents
    • D06F39/022—Devices for adding soap or other washing agents in a liquid state
    • 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
    • A47L15/44—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants
    • A47L15/4418—Devices for adding cleaning agents; Devices for dispensing cleaning agents, rinsing aids or deodorants in the form of liquids

Definitions

  • LIQUID DETERGENT METERING DEVICE Filed March 18, 1968 Sheets-Sheet 2 I l 2 N United States Patent 3,517,862 LIQUID DETERGENT METERING DEVICE Carlo Bianco, 'hll'lll, Italy, assignor to Elbi S.a.s. dei Fratelli Bianco, Turin, Italy, an Italian body corporate Filed Mar. 18, 1968, Ser. No. 713,697 Claims priority, application Italy, Mar. 31, 1967, 122,959/ 67 Int. Cl. G01f 11/28 US. Cl.
  • a device for metering detergent has a detergent inlet and outlet in standard positions and includes a variablevolume metering chamber, adjustment of which is eifected bv means accessible through the detergent inlet.
  • This invention relates to liquid detergent metering devices.
  • Metering devices for liquid detergent are commonly mounted on clothes and dish-washing machines. Such devices generally comprise a receptacle provided with an inlet for filling the receptacle with liquid detergent and an outlet communicating with the receptacle through a metering chamber within the receptacle.
  • Adjustable metering devices are also known. These are provided with an external control for varying the volume of the metering chamber. Washing machines to which such devices are fitted require special housings, which were heretofore provided by the machine manufacturers at various locations depending upon the structural characteristics of the machine, to permit access to the adjustment means of the metering devices.
  • An object of the present invention is to improve the accessibility to the operator of a control for effecting adjustment of an adjustable metering device.
  • a liquid detergent metering device comprises a receptacle having an inlet for filling the receptacle and a discharge outlet communicating with the receptacle through a metering chamber within the receptacle and means for adjusting the volume of the metering chamber, said volume-adjusting means being accessible for adjustment through the detergent inlet of the receptacle.
  • the adjustable metering device of the invention can be assembled on washing machines of any type, including those which are adapted normally for the installation of non-adjustable metering devices.
  • FIG. 1 is a side elevational view of a metering device according to one embodiment of the invention.
  • FIG. 2 is a cross-sectional view on line II-II of FIG. 1, and
  • FIG. 3 is a sectional view on line III-III of FIG. 2.
  • the metering device shown in the drawings comprises a receptacle 1 for a liquid detergent.
  • a metering chamber 2 On the bottom of the receptacle 1 a metering chamber 2 (see FIG. 3) is provided.
  • the metering chamber 2 communicates with the receptacle 1 through a port 3 at one end of a passage 3,517,862 Patented June 30, 1970 20 and communicates with a discharge outlet 9 (FIG. 1) through a port 4 (FIG. 3) which is coaxial with the port 3 and located at the other end of the passage 20.
  • Projecting from the top of the chamber 2 is the customary vent tube 19, open at its upper end to allow equalization of the pressures within the chamber 2 and the body of the receptacle 1.
  • the chamber 2 has a movable wall in the form of a piston member 10 sealingly slidable in a compartment 11 formed in the bottom of the receptacle 1.
  • the piston member 10 has a rack 12 fixed thereto.
  • the rack 12 meshes with a pinion 13 rotation of which eflects adjustment of the position of the piston member 10 in order to vary the volume of the metering chamber 2.
  • the piston member 10 In the position shown in FIG. 3, the piston member 10 is at the end of its travel and the chamber 2 is correspondingly at its minimum volume. In this position the piston member closes the vent tube 19, but in all other positions which give the chamber 2 an increased volume, the tube 19 communicates with the interior of the chamber 2.
  • Flow through the ports 3 and 4 is controlled by respective valve members 7, 8 mounted on a movable armature 5 of a solenoid 6.
  • valve member 7 In the de-energized condition of the solenoid 6, the valve member 7 is spaced from the port 3, while the valve member 8 closes the port 4.
  • liquid detergent from the receptacle 1 fills the annular space in the passage 20 around the armature 5 and also fills the metering chamber 2, the piston member 10 being extended from the chamber 2 to allow communication between the chamber 2 and the receptacle 1 through the vent tube 19 for the filling operation.
  • the detergent will thus rise in the tube 19 to substantially the same level as in the receptacle 1.
  • the movable armature 5 Upon energisation of the solenoid 6, the movable armature 5 is displaced and causes the valve member 7 to close the port 3, while spacing the valve member 8 from the port 4. In this position the liquid detergent in the passage 20, together with liquid in the metering chamber 2 above the vertical level of a lip 21 (FIG. 3) located where the chamber 2 and passage 20 join each other, is discharged through the outlet 9, the liquid in the receptacle 1 being prevented by the valve member 7 from flowing into the chamber 2.
  • the piston member 10 closes the vent tube 19 to define the minimum volume of the chamber 2
  • energization of the solenoid 6 causes discharge of only that liquid contained in the passage 20, this volume of liquid being predetermined as the minimum required for any washing operation.
  • the volume of the chamber 2 below the vertical level of the lip 21 is always a dead space in the sense that liquid in this space remains in the metering chamber 2 even during discharge.
  • An inlet 14 (FIG. 1) is situated in the top of the receptacle 1 for introducing the liquid detergent.
  • the relative positions of the outlet 9 and the inlet 14, as well as the diameters thereof, are standardised.
  • the pinion 13 which effects adjustment of the volume of the metering chamber 2 is mounted within the receptacle 1 for rotation about its axis, which is aligned with the axis of the inlet 14.
  • the side of the pinion 13 facing towards the inlet 14 is formed with a slot 15 which is adapted to receive a screwdriver bit for effecting rotational adjustment of the pinion 13. With this arrangement the slot 15 is accessible by a screwdriver through the opening of the inlet 14.
  • the inlet 14 is externally screw-threaded for the screwing thereon of a ring nut 16 which secures the receptacle 1 to a wall of the clothes or dish-washing machine, part of which is shown in broken lines at M. Also, an internally threaded cap closure 17 may be fitted over the inlet 14.
  • a spout 18 is snap-engaged in the inlet 14 and projects outwardly, the spout 18 being open at its top.
  • the spout 18 may be removed from the inlet 14 for the purpose of introducing a screw driver through the opening of the inlet 14 when adjusting the volume of the metering chamber 2 as described previously.
  • Liquid detergent metering device comprising a receptacle having a detergent inlet, a metering chamber within the receptacle, a discharge outlet communicating with the receptacle through the metering chamber, and volume-adjusting means associated with the metering chamber and effective to adjust the volume thereof, the volume-adjusting means including a movable wall member in the metering chamber and a rack and pinion cou- References Cited UNITED STATES PATENTS 457,913 8/ 1891 Fowler 222---440 X 2,373,124 4/ 1945 Le Frank 222-440 X 2,959,341 11/1960 Noakes 222453 X 3,325,012 6/1967 Kryzer et al. 222-440 X ROBERT B. REEVES, Primary Examiner F. R. HANDKEN, Assistant Examiner US. Cl. X.R. 222-453, 504

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Filling Of Jars Or Cans And Processes For Cleaning And Sealing Jars (AREA)
  • Containers And Packaging Bodies Having A Special Means To Remove Contents (AREA)
US713697A 1967-03-31 1968-03-18 Liquid detergent metering device Expired - Lifetime US3517862A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
IT1923467 1967-03-31

Publications (1)

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US3517862A true US3517862A (en) 1970-06-30

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US713697A Expired - Lifetime US3517862A (en) 1967-03-31 1968-03-18 Liquid detergent metering device

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US (1) US3517862A (xx)
DE (1) DE1988216U (xx)
FR (1) FR1562393A (xx)
SE (1) SE337356B (xx)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739942A (en) * 1972-01-18 1973-06-19 Gen Motors Corp Dispenser having a bimetal actuated metering valve assembly
US4691721A (en) * 1984-12-07 1987-09-08 Ecolab Inc. Volumetric gravity feed liquid dispenser
US20150259846A1 (en) * 2012-09-10 2015-09-17 Electrolux Laundry Systems Sweden Ab Receptacle for supply of a treatment agent

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3107136C2 (de) * 1981-02-26 1985-05-09 Aweco Apparate- und Gerätebau GmbH & Co KG, 7995 Neukirch Dosiervorrichtung für Flüssigkeiten zum Einbau in Geschirrspülmaschinen

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US457913A (en) * 1891-08-18 Apparatus for dispensing drinks
US2373124A (en) * 1941-09-04 1945-04-10 American Can Co Dispensing device
US2959341A (en) * 1959-01-07 1960-11-08 American Radiator & Standard Liquid dispenser
US3325012A (en) * 1963-06-05 1967-06-13 Union Tank Car Co Water conditioning system

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US457913A (en) * 1891-08-18 Apparatus for dispensing drinks
US2373124A (en) * 1941-09-04 1945-04-10 American Can Co Dispensing device
US2959341A (en) * 1959-01-07 1960-11-08 American Radiator & Standard Liquid dispenser
US3325012A (en) * 1963-06-05 1967-06-13 Union Tank Car Co Water conditioning system

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3739942A (en) * 1972-01-18 1973-06-19 Gen Motors Corp Dispenser having a bimetal actuated metering valve assembly
US4691721A (en) * 1984-12-07 1987-09-08 Ecolab Inc. Volumetric gravity feed liquid dispenser
US20150259846A1 (en) * 2012-09-10 2015-09-17 Electrolux Laundry Systems Sweden Ab Receptacle for supply of a treatment agent
US9809922B2 (en) * 2012-09-10 2017-11-07 Electrolux Laundry Systems Sweden Ab Receptacle for supply of a treatment agent

Also Published As

Publication number Publication date
FR1562393A (xx) 1969-04-04
DE1988216U (de) 1968-06-27
SE337356B (xx) 1971-08-09

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