US3553401A - Salt-supply container and switch for a softening device - Google Patents

Salt-supply container and switch for a softening device Download PDF

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Publication number
US3553401A
US3553401A US750653A US3553401DA US3553401A US 3553401 A US3553401 A US 3553401A US 750653 A US750653 A US 750653A US 3553401D A US3553401D A US 3553401DA US 3553401 A US3553401 A US 3553401A
Authority
US
United States
Prior art keywords
salt
bottom part
container
switch
water
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
US750653A
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English (en)
Inventor
Werner Janecke
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.)
US Philips Corp
Original Assignee
US Philips Corp
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 US Philips Corp filed Critical US Philips Corp
Application granted granted Critical
Publication of US3553401A publication Critical patent/US3553401A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • 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
    • 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
    • A47L15/4229—Water softening arrangements
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
    • B01J—CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOID CHEMISTRY; THEIR RELEVANT APPARATUS
    • B01J49/00—Regeneration or reactivation of ion-exchangers; Apparatus therefor
    • B01J49/75—Regeneration or reactivation of ion-exchangers; Apparatus therefor of water softeners

Definitions

  • ABSTRACT A device for softening water in apparatus such [50] Field of Search ..200/8l (all), 83 (all), as a dishwasher, in which a quantity of salt depresses a con- 8l.9, 82.2, 83.34, 83.91,153.19;210/43, 86; 23/312AH; 23/272.5, 272.2; ZOO/61.2, 61.21
  • the invention relates to a salt-supply container for the softening device of an electric domestic apparatus, especially a dish washer or washing machine, having a freshwater inlet and salt-solution outlet.
  • Salt-supply containers are known in which an amount of common salt sufficient for several softening operations is stored.
  • salt is dissolved in fresh water flowing through the solution being introduced into the softening device.
  • the bottom of the container is arranged to be urged against a pressure-sensitive switching element.
  • the container As long as the container is sufficiently filled so as to exceed a predetermined weight, it presses against the switching element and maintains the electric circuit of the machine closed.
  • the weight of the supply container is reduced by a reduction of the salt contents, the pressure on the pressure-sensitive switching element decreases, enabling it to break the circuit. This ensures in a simple manner that the ion exchange material in the softening device cannot be used beyond regeneration.
  • the bottom of the container is resiliently supported in the vertical direction with respect to the wall of the container and isarranged to be urged against the pressure-sensitive switching element which is rigidly connected, either directly or indirectly, to the container wall.
  • the container itself may have its filling port rid rigidly secured to the washing tank.
  • the bottom of the container is arranged on the bottom of a resilient pot which by means of a spring is supported by a base plate which carries the switching element and is rigidly secured to the wall of the container.
  • the resilient pot When the bottom of the resilient rubber pot is provided with extendible rubber corrugations along its edge, the resilient pot provides sufficient freedom of movement for the bottom of the container.
  • the switching element may be a simple pressure switch or a pressure-sensitive semiconductor body.
  • Other switches capable of performing a switching operation as a result of pressure exerted on them may also be used.
  • the wall of the resilient pot is fastened to the wall of the container by means of a clamping collar.
  • the clamping collar When the clamping collar is removed, the pot drops off the container so that it can be cleaned of insoluble residues.
  • a salt supply container 1 comprises a tubular wall 3 the upper end of which is provided with a screw thread 5 on to which a cover 7 can be screwed.
  • a supply pipe 9 passes through the wall 3 and extends parallel to this wall 3 nearly to the bottom of the container. Slightly above the supply pipe is provided a discharge pipe 13 which abuts a filter 15 arranged in an aperture 17 in the wall 3 in front of the pipe 13.
  • the bottom of the container is secured to a resilient pot 19 which may be made of rubber.
  • This resilient pot 19 comprises a wall enclosing the lower end of the container wall 3 and a resilient bottom 21 which forms the lower closure of this wall.
  • the resilient pot is provided with entendible rubber corrugations 23 along its edge.
  • the bottom 21 is supported by a base plate 25 which has an annular part 27 embracing the resilient pot l9 and is secured to the container wall 3.
  • a compression spring 29 is arranged between the base plate 25 'and the bottom of the container. The spring 29 is accommodated in a recess 31 in the base plate, preventing its displacement relative to this plate.
  • the base plate 25 also carries a switch 33 the switching contact 35 of which extends upwards.
  • the switch may be either a normal pressure switch or a pressure-sensitive semiconductor element.
  • the bottom 11 is provided with a guide plate 37 which com pels the water supplied to flow in a given direction, as is shown by the arrow 39. This ensures a thorough commotion of the supply of salt in the container.
  • the switch 33 is so connected in the main electric circuit of an electric domestic apparatus, for example a dishwasher, that it completes this circuit when sufficient pressure is impose d on it, whereas it breaks the circuit when the pressure is reduced below a certain value.
  • the supply container contains a sufiicient supply of salt
  • this salt weight down the bottom 11.
  • the bottom exerts pressure on the switch contact 35 and hence the switch 33 closes the circuit.
  • the weight of the salt which exerts pressure on the bottom 11 is reduced by the salt being progressively washed away, the bottom 11 is raised by the spring 29. Beyond a predetermined reduction in weight the spring 29 raises the bottom 11 through a distance such that the electric circuit of the machine is broken.
  • the spring is proportioned so that the circuit is broken before the softening device is likely to be used beyond regeneration owing to the replenishment of the supply container being pretermitted.
  • the common salt used for the regenerating process always contains insoluble residues which after some time collect on the bottom of the container.
  • the resilient pot 19 is fastened to the wall 3 of the container bymeans of a clamping collar 41.
  • the container wall is additionally provided with a depression 43 which enables the clamping collar 41 to secure the pot I9 to the wall 3 with sufficient force. When the clamping collar is removed, the pot may be taken off and cleaned.
  • a water-softening device for use with a supply of salt in an apparatus such as a dishwasher or washing machine, comprising: v
  • switch means (1) being disposed below said bottom part, (2) being closed when depressed by the bottom part in its low position, and (3) opened when the bottom part is elevated to its high position, whereby fresh water entering the inlet dissolves a portion of the salt forming salt water which is later discharged via the outlet, and the bottom part rises after sufiicient salt is dissolved therefrom, thereby opening the switch.
  • a device as defined in claim 1 further comprising a support means for the salt disposed upon said bottom part, said cylinder bottom part is removably fastened to the lower part of the container by means of a clamping collar.

Landscapes

  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Organic Chemistry (AREA)
  • Chemical Kinetics & Catalysis (AREA)
  • Washing And Drying Of Tableware (AREA)
  • Treatment Of Water By Ion Exchange (AREA)
  • Instantaneous Water Boilers, Portable Hot-Water Supply Apparatuses, And Control Of Portable Hot-Water Supply Apparatuses (AREA)
  • Cookers (AREA)
US750653A 1967-08-10 1968-08-06 Salt-supply container and switch for a softening device Expired - Lifetime US3553401A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DEP29867U DE1982981U (de) 1967-08-10 1967-08-10 Salzvorratsbehaelter fuer eine enthaertungsanlage.

Publications (1)

Publication Number Publication Date
US3553401A true US3553401A (en) 1971-01-05

Family

ID=7371713

Family Applications (1)

Application Number Title Priority Date Filing Date
US750653A Expired - Lifetime US3553401A (en) 1967-08-10 1968-08-06 Salt-supply container and switch for a softening device

Country Status (5)

Country Link
US (1) US3553401A (de)
DE (1) DE1982981U (de)
ES (1) ES357045A1 (de)
FR (1) FR1582619A (de)
GB (1) GB1200283A (de)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958948A (en) * 1975-01-08 1976-05-25 The United States Of America As Represented By The United States Energy Research And Development Administration Dissolver vessel bottom assembly
US4220142A (en) * 1977-09-01 1980-09-02 Raymond C. Rosen Behavioral shaping device for eliminating nocturnal sounds
EP0906746A3 (de) * 1997-09-19 1999-05-19 AWECO Kunststofftechnik Gerätebau GmbH & Co. KG Vorrichtung zur Wasserenthärtung
US20040177654A1 (en) * 2003-03-12 2004-09-16 Miele & Cie. Kg Dishwasher having a water softener with a salt container located in the dishwasher door

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2646307C2 (de) * 1976-10-14 1982-07-29 Euro Hausgeräte GmbH, 6680 Neunkirchen Wasserenthärter für Geschirrspülmaschinen
FR2419909A1 (fr) * 1978-03-17 1979-10-12 Esswein Sa Dispositif pour indiquer la presence ou le manque d'un produit soluble dans un liquide, et adoucisseur d'eau equipe d'un tel dispositif

Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2419685A (en) * 1944-12-14 1947-04-29 Stewart Warner Corp Electric switch
US2626387A (en) * 1951-07-10 1953-01-20 Berry William Device for collecting equine urine specimens
US2834845A (en) * 1956-03-12 1958-05-13 Axel L Nielsen Sump pump control
US3035189A (en) * 1960-04-22 1962-05-15 Gen Electric Adjustable pressure-responsive switch
US3043225A (en) * 1959-08-10 1962-07-10 Axel L Nielsen Adjustable liquid level control for pumps
US3067302A (en) * 1959-06-01 1962-12-04 Axel L Nielsen Hydro-statically and dynamically responsive control for sump pumps and the like
US3123445A (en) * 1964-03-03 Solution-making apparatus
US3317042A (en) * 1964-10-16 1967-05-02 Dietrich W Botstiber Liquid filter and chip detector
US3385674A (en) * 1965-10-07 1968-05-28 Diamond Crystal Salt Co Lateral flow rock salt dissolver and method

Patent Citations (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3123445A (en) * 1964-03-03 Solution-making apparatus
US2419685A (en) * 1944-12-14 1947-04-29 Stewart Warner Corp Electric switch
US2626387A (en) * 1951-07-10 1953-01-20 Berry William Device for collecting equine urine specimens
US2834845A (en) * 1956-03-12 1958-05-13 Axel L Nielsen Sump pump control
US3067302A (en) * 1959-06-01 1962-12-04 Axel L Nielsen Hydro-statically and dynamically responsive control for sump pumps and the like
US3043225A (en) * 1959-08-10 1962-07-10 Axel L Nielsen Adjustable liquid level control for pumps
US3035189A (en) * 1960-04-22 1962-05-15 Gen Electric Adjustable pressure-responsive switch
US3317042A (en) * 1964-10-16 1967-05-02 Dietrich W Botstiber Liquid filter and chip detector
US3385674A (en) * 1965-10-07 1968-05-28 Diamond Crystal Salt Co Lateral flow rock salt dissolver and method

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3958948A (en) * 1975-01-08 1976-05-25 The United States Of America As Represented By The United States Energy Research And Development Administration Dissolver vessel bottom assembly
US4220142A (en) * 1977-09-01 1980-09-02 Raymond C. Rosen Behavioral shaping device for eliminating nocturnal sounds
EP0906746A3 (de) * 1997-09-19 1999-05-19 AWECO Kunststofftechnik Gerätebau GmbH & Co. KG Vorrichtung zur Wasserenthärtung
US20040177654A1 (en) * 2003-03-12 2004-09-16 Miele & Cie. Kg Dishwasher having a water softener with a salt container located in the dishwasher door
US7124765B2 (en) * 2003-03-12 2006-10-24 Miele & Cie, Kg Dishwasher having a water softener with a salt container located in the dishwasher door

Also Published As

Publication number Publication date
ES357045A1 (es) 1970-03-01
DE1982981U (de) 1968-04-04
FR1582619A (de) 1969-10-03
GB1200283A (en) 1970-07-29

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