US3619561A - Coffee-making apparatus - Google Patents

Coffee-making apparatus Download PDF

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Publication number
US3619561A
US3619561A US823443A US3619561DA US3619561A US 3619561 A US3619561 A US 3619561A US 823443 A US823443 A US 823443A US 3619561D A US3619561D A US 3619561DA US 3619561 A US3619561 A US 3619561A
Authority
US
United States
Prior art keywords
heater
float
reservoir
switch
chamber
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
US823443A
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English (en)
Inventor
Gerard Clement Smit
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
Application granted granted Critical
Publication of US3619561A publication Critical patent/US3619561A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H35/00—Switches operated by change of a physical condition
    • H01H35/18—Switches operated by change of liquid level or of liquid density, e.g. float switch
    • H01H35/186—Switches operated by change of liquid level or of liquid density, e.g. float switch making use of a cable suspended floater containing an inclination sensing switch
    • A—HUMAN NECESSITIES
    • A47—FURNITURE; DOMESTIC ARTICLES OR APPLIANCES; COFFEE MILLS; SPICE MILLS; SUCTION CLEANERS IN GENERAL
    • A47J—KITCHEN EQUIPMENT; COFFEE MILLS; SPICE MILLS; APPARATUS FOR MAKING BEVERAGES
    • A47J31/00—Apparatus for making beverages
    • A47J31/44—Parts or details or accessories of beverage-making apparatus
    • A47J31/54—Water boiling vessels in beverage making machines
    • A47J31/542—Continuous-flow heaters
    • A47J31/545—Control or safety devices
    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H29/00—Switches having at least one liquid contact
    • H01H29/20—Switches having at least one liquid contact operated by tilting contact-liquid container

Definitions

  • This invention relates to a cofl'ee-making apparatus comprising an electric throughflow heater, connected to a water reservoir, for passing hot water to a filter.
  • Apparatuses of this kind which are known in various embodiments, are provided with a mechanism for switching the throughflow heater on and off.
  • these switch mechanisms are arranged to control the apparatus automatically and in dependence on the presence of water, they have hitherto been of a highly vulnerable and unreliably operating construction.
  • a coffee-making apparatus comprising an electric throughflow heater, connected to a water reservoir, for passing hot water to a filter, characterized in that, in the path of flow of the water to be heated, there is included a chamber having a float swiveling about a fixed point and a mercury switch for the throughflow heater, stationarily mounted in said float.
  • said float chamber is disposed immediately subjacent to the water reservoir.
  • FIG. 1 is a vertical longitudinal section of the coffee-making apparatus according to the invention.
  • F IG. 2 is a plan view of the water reservoir
  • FIG. 3 and 4 show vertical longitudinal sections of the float chamber with the float in different positions.
  • a coffee-making apparatus comprising a baseplate 1 including a heating plate 2 for a filtrate pot 3 which carries a removable filter 4.
  • a housing 5 carrying a water reservoir 6.
  • the bottom of the reservoir 6 has a central column 7 and an eccentric recessed portion forming a float chamber 8.
  • the float chamber 8 is roofed by a hood 11, the latter being provided with lateral slots 9 and a vent 10.
  • Permanently in communication with the water reservoir 6, the float chamber is connected to a tube 12, the lower end of which is coupled to an electric throughflow heater 13 which, at choice, can be switched on fully or partly and communicates through a tube extending through the column 7 of the water reservoir with a swiveling horizontal tube 14, whose outlet 15 can be positioned centrally over the filter 4 or swung away out of this position.
  • a float 16 Disposed in the float chamber 8 is a float 16 secured through a flexible tube 17 to a wall of the float chamber for free up-and-down movement between the bottom of the float chamber 8 and the hood 11.
  • the float 16 contains a mercury switch 18, which is stationarily mounted therein, and whose contact points 19 and 20 are connected through leads 21 and 22, housed in the tube 17, to the throughflow heater l3 and to a source of electric current.
  • the tube 12 and the heater 13 should be filled with water to just below the float chamber 8. If, in that condition, in which the float 16 rests on the bottom of the float chamber 8, so that the heater 13 is in its switched-off position (FIG. 4), a given quantity of water is poured into the reservoir 6, a part of this water will immediately fill the float chamber 8. As a result, the float will swing upwardly and the mercury 23 will be displaced to establish an electric connection between the contact points 19 and 20 (FIG. 3), which puts the heater 13 into operation. The water in the heater will be brought to the boil, forced upwardly, and passed through the outlet 15 to the filter 4, while being replaced by water from the reservoir 6 and the float chamber 8. As soon as the supply of water is exhausted, so that the float chamber is empty, the float 16 will drop, whereby the displacement of the mercury 23 will break the electric connection between the contact points 19 and 20 and switch off the heater 13.
  • the simple switch mechanism l6, 18 for controlling the heater can be made of sturdy construction so that it will be relatively invulnerable and operate reliably.
  • the heater 1:! may be arranged to operate at full or half capacity, depending on whether the apparatus is used for the normal filtering method or for the quick-filtering method.
  • a selection switch 24 can be included in the electric leads connected to the heater, by means of which the heater can be previously adjusted to operate at full or half capacity after it has been switch on.
  • a signal lamp 25 can be included in said electric leads to indicate that the heater is actually in its switched-on condition.
  • a coffee-making apparatus comprising a hollow housing member, an electric throughflow heater located in said housing, a water reservoir supported on the upper end of said housing and having a bottom wall above said heater, a tube extending upwardly from said heater and centrally through said reservoir for connection to a horizontal tube having an outlet to one side of said reservoir, said bottom wall having an opening therein, a float chamber below said opening and in communication with said reservoir, a connection from said float chamber to the bottom of said throughflow heater to pass water from said reservoir to said heater and out said tube to said outlet, said float chamber having sidewalls connected to the bottom wall of said reservoir, a hollow float in said float chamber pivotally connected to a sidewall of said chamber by a flexible tubular sleeve fixed to said sidewall and opening through said sidewall, a mercury switch in said float positioned so that pivotal up-and-down movement of said float as said chamber is filled and emptied will close and open said switch, and lead wires passing through said tubular sleeve to said switch and

Landscapes

  • Engineering & Computer Science (AREA)
  • Food Science & Technology (AREA)
  • Apparatus For Making Beverages (AREA)
US823443A 1968-06-20 1969-05-09 Coffee-making apparatus Expired - Lifetime US3619561A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
NL6808675A NL6808675A (fr) 1968-06-20 1968-06-20

Publications (1)

Publication Number Publication Date
US3619561A true US3619561A (en) 1971-11-09

Family

ID=19803944

Family Applications (1)

Application Number Title Priority Date Filing Date
US823443A Expired - Lifetime US3619561A (en) 1968-06-20 1969-05-09 Coffee-making apparatus

Country Status (9)

Country Link
US (1) US3619561A (fr)
AT (1) AT292238B (fr)
BE (1) BE733114A (fr)
CH (1) CH481622A (fr)
DE (2) DE6921198U (fr)
ES (1) ES367483A1 (fr)
FR (1) FR2011261A1 (fr)
GB (1) GB1270818A (fr)
NL (1) NL6808675A (fr)

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869968A (en) * 1973-09-24 1975-03-11 Dart Ind Inc Coffee maker
US4208958A (en) * 1976-01-26 1980-06-24 Cory Food Services, Inc. Beverage brewer housing structure
US6279458B1 (en) * 1999-08-30 2001-08-28 John C. K. Sham Rapid brew automatic coffee maker
CZ300739B6 (cs) * 2000-01-24 2009-07-29 Societe Des Produits Nestle S. A. Modul pro zahrívání kapaliny, zpusob pro zahrívání kapaliny v zarízení s tímto modulem, stroj pro prípravu kávy a prodejní automat, obsahující tento modul
US20120090474A1 (en) * 2009-04-01 2012-04-19 Rancilio Macchine Per Caffe' S.P.A. Machine for infusion preparation, in particular espresso coffee, supplying group and manufacturing method thereof
US20140060335A1 (en) * 2012-09-03 2014-03-06 Melitta Europa GmbH & Co.KG. Device for the preparation of hot water
USD773878S1 (en) * 2015-06-10 2016-12-13 Helen Of Troy Limited Coffee maker
USD773877S1 (en) * 2015-06-04 2016-12-13 Helen Of Troy Limited Coffee maker

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GR910100436A (el) * 1991-10-23 1993-06-30 Stayros Lalizas Συσκευη αυτοματου ελεγχου της σταθμης υγρων.

Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE186346C (fr) *
US2136220A (en) * 1935-08-16 1938-11-08 Oscar F Carlson Company Control switch
US2459305A (en) * 1945-03-30 1949-01-18 Brandl Willi Apparatus for making infusions
US2580759A (en) * 1949-04-09 1952-01-01 Honeywell Regulator Co Liquid level responsive switch
US3049987A (en) * 1957-12-20 1962-08-21 Bampfer Ludwig Domestic machine for producing extracts of coffee, tea and the like
FR1374961A (fr) * 1961-09-19 1964-10-16 Patzner K G Fabrik Fuer Maschi Chaudière à vapeur permettant une distribution dosée, en particulier pour des machines à café
US3291034A (en) * 1963-12-12 1966-12-13 Arvin Ind Inc Beverage dispenser

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE1971770U (de) * 1967-08-30 1967-11-02 Hellmut Bedall Elektrisch beheizter wasserkocher mit automatischer an- und abschaltung de stromes.

Patent Citations (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE186346C (fr) *
US2136220A (en) * 1935-08-16 1938-11-08 Oscar F Carlson Company Control switch
US2459305A (en) * 1945-03-30 1949-01-18 Brandl Willi Apparatus for making infusions
US2580759A (en) * 1949-04-09 1952-01-01 Honeywell Regulator Co Liquid level responsive switch
US3049987A (en) * 1957-12-20 1962-08-21 Bampfer Ludwig Domestic machine for producing extracts of coffee, tea and the like
FR1374961A (fr) * 1961-09-19 1964-10-16 Patzner K G Fabrik Fuer Maschi Chaudière à vapeur permettant une distribution dosée, en particulier pour des machines à café
US3291034A (en) * 1963-12-12 1966-12-13 Arvin Ind Inc Beverage dispenser

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3869968A (en) * 1973-09-24 1975-03-11 Dart Ind Inc Coffee maker
US4208958A (en) * 1976-01-26 1980-06-24 Cory Food Services, Inc. Beverage brewer housing structure
US6279458B1 (en) * 1999-08-30 2001-08-28 John C. K. Sham Rapid brew automatic coffee maker
CZ300739B6 (cs) * 2000-01-24 2009-07-29 Societe Des Produits Nestle S. A. Modul pro zahrívání kapaliny, zpusob pro zahrívání kapaliny v zarízení s tímto modulem, stroj pro prípravu kávy a prodejní automat, obsahující tento modul
US20120090474A1 (en) * 2009-04-01 2012-04-19 Rancilio Macchine Per Caffe' S.P.A. Machine for infusion preparation, in particular espresso coffee, supplying group and manufacturing method thereof
US9427106B2 (en) * 2009-04-01 2016-08-30 Rancilio Group S.p.A. Machine for infusion preparation, in particular espresso coffee, supplying group and manufacturing method thereof
US20140060335A1 (en) * 2012-09-03 2014-03-06 Melitta Europa GmbH & Co.KG. Device for the preparation of hot water
USD773877S1 (en) * 2015-06-04 2016-12-13 Helen Of Troy Limited Coffee maker
USD773878S1 (en) * 2015-06-10 2016-12-13 Helen Of Troy Limited Coffee maker

Also Published As

Publication number Publication date
FR2011261A1 (fr) 1970-02-27
GB1270818A (en) 1972-04-19
AT292238B (de) 1971-08-25
CH481622A (de) 1969-11-30
DE6921198U (de) 1969-10-23
BE733114A (fr) 1969-10-16
DE1926826B2 (de) 1980-07-03
DE1926826C3 (de) 1981-04-09
NL6808675A (fr) 1969-12-23
ES367483A1 (es) 1971-04-01
DE1926826A1 (de) 1970-01-02

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