GB1030785A - Improvements in and relating to electrically heated devices for extracting constituents from a substance - Google Patents
Improvements in and relating to electrically heated devices for extracting constituents from a substanceInfo
- Publication number
- GB1030785A GB1030785A GB45213/63A GB4521363A GB1030785A GB 1030785 A GB1030785 A GB 1030785A GB 45213/63 A GB45213/63 A GB 45213/63A GB 4521363 A GB4521363 A GB 4521363A GB 1030785 A GB1030785 A GB 1030785A
- Authority
- GB
- United Kingdom
- Prior art keywords
- resistor
- reservoir
- coffee
- temperature
- return
- 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
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/20—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature
- G05D23/24—Control of temperature characterised by the use of electric means with sensing elements having variation of electric or magnetic properties with change of temperature the sensing element having a resistance varying with temperature, e.g. a thermistor
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1906—Control of temperature characterised by the use of electric means using an analogue comparing device
- G05D23/1909—Control of temperature characterised by the use of electric means using an analogue comparing device whose output amplitude can only take two discrete values
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D23/00—Control of temperature
- G05D23/19—Control of temperature characterised by the use of electric means
- G05D23/1919—Control of temperature characterised by the use of electric means characterised by the type of controller
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Apparatus For Making Beverages (AREA)
Abstract
1,030,785. Electrically-heated coffee percolators. PHILIPS GLOELAMPENFABRIEKEN N.V. Nov. 15, 1963 [Nov. 20, 1962], No. 45213/63. Heading H2H. A coffee percolator comprises a reservoir 1 provided with an electric heating element 3 connected in series with a positive temperature coefficient resistor 4 which automatically reduces the current through element 3 at a predetermined reservoir temperature, the circuit arrangement being generally similar in design and operation to that described in Specification 1,017,636. Alteration of the operating point of resistor 4 on its appropriate V/I characteristic, Fig. 2 (not shown), is arranged to occur when substantially all of the heated water in reservoir 1 has been driven into the vessel 2, the subsequent drop in reservoir temperature allowing the liquid coffee extract to return thereto where it is maintained at a desired temperature by suitable choice of the resistor V/I characteristics. For a constituent extracting process other than coffee percolating and requiring restoration of the liquid extract to a high temperature after its return to the reservoir, standard resistors may be connected in parallel or in series with the element 3 and/or the resistor 4 to obtain a desired characteristic and/or load line to cause the operating point of the resistor 4 to return to its former value after a period of cooling, thus allowing the current through the element 3 to regain its former high value.
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| NL285737 | 1962-11-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1030785A true GB1030785A (en) | 1966-05-25 |
Family
ID=19754239
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB45213/63A Expired GB1030785A (en) | 1962-11-20 | 1963-11-15 | Improvements in and relating to electrically heated devices for extracting constituents from a substance |
Country Status (4)
| Country | Link |
|---|---|
| AT (1) | AT250605B (en) |
| CH (1) | CH410220A (en) |
| ES (1) | ES293614A1 (en) |
| GB (1) | GB1030785A (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE1690587B1 (en) * | 1967-01-13 | 1972-11-23 | Matsushita Electric Ind Co Ltd | Automatic electric coffee maker |
-
1963
- 1963-11-15 GB GB45213/63A patent/GB1030785A/en not_active Expired
- 1963-11-18 AT AT921263A patent/AT250605B/en active
- 1963-11-18 ES ES0293614A patent/ES293614A1/en not_active Expired
- 1963-11-18 CH CH1409563A patent/CH410220A/en unknown
Also Published As
| Publication number | Publication date |
|---|---|
| CH410220A (en) | 1966-03-31 |
| AT250605B (en) | 1966-11-25 |
| ES293614A1 (en) | 1964-04-01 |
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