CH674074A5 - - Google Patents
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- Publication number
- CH674074A5 CH674074A5 CH1135/87A CH113587A CH674074A5 CH 674074 A5 CH674074 A5 CH 674074A5 CH 1135/87 A CH1135/87 A CH 1135/87A CH 113587 A CH113587 A CH 113587A CH 674074 A5 CH674074 A5 CH 674074A5
- Authority
- CH
- Switzerland
- Prior art keywords
- electrical circuit
- circuit according
- ice
- operational amplifier
- signal
- Prior art date
Links
- 239000003990 capacitor Substances 0.000 claims description 19
- 238000004519 manufacturing process Methods 0.000 claims description 17
- 238000010586 diagram Methods 0.000 description 4
- 230000009467 reduction Effects 0.000 description 3
- 125000000524 functional group Chemical group 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000008569 process Effects 0.000 description 2
- 230000001960 triggered effect Effects 0.000 description 2
- 230000003321 amplification Effects 0.000 description 1
- 230000004888 barrier function Effects 0.000 description 1
- 230000003750 conditioning effect Effects 0.000 description 1
- 230000001419 dependent effect Effects 0.000 description 1
- 238000001914 filtration Methods 0.000 description 1
- 230000007257 malfunction Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 238000012261 overproduction Methods 0.000 description 1
- 230000035945 sensitivity Effects 0.000 description 1
- 238000005303 weighing Methods 0.000 description 1
Classifications
-
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F25—REFRIGERATION OR COOLING; COMBINED HEATING AND REFRIGERATION SYSTEMS; HEAT PUMP SYSTEMS; MANUFACTURE OR STORAGE OF ICE; LIQUEFACTION SOLIDIFICATION OF GASES
- F25C—PRODUCING, WORKING OR HANDLING ICE
- F25C5/00—Working or handling ice
- F25C5/18—Storing ice
- F25C5/182—Ice bins therefor
- F25C5/187—Ice bins therefor with ice level sensing means
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01F—MEASURING VOLUME, VOLUME FLOW, MASS FLOW OR LIQUID LEVEL; METERING BY VOLUME
- G01F23/00—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm
- G01F23/22—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water
- G01F23/28—Indicating or measuring liquid level or level of fluent solid material, e.g. indicating in terms of volume or indicating by means of an alarm by measuring physical variables, other than linear dimensions, pressure or weight, dependent on the level to be measured, e.g. by difference of heat transfer of steam or water by measuring the variations of parameters of electromagnetic or acoustic waves applied directly to the liquid or fluent solid material
- G01F23/284—Electromagnetic waves
- G01F23/292—Light, e.g. infrared or ultraviolet
- G01F23/2921—Light, e.g. infrared or ultraviolet for discrete levels
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D9/00—Level control, e.g. controlling quantity of material stored in vessel
- G05D9/12—Level control, e.g. controlling quantity of material stored in vessel characterised by the use of electric means
Landscapes
- Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Electromagnetism (AREA)
- General Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Fluid Mechanics (AREA)
- General Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Automation & Control Theory (AREA)
- Production, Working, Storing, Or Distribution Of Ice (AREA)
- Electronic Switches (AREA)
- Measurement Of Levels Of Liquids Or Fluent Solid Materials (AREA)
- Photometry And Measurement Of Optical Pulse Characteristics (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US84791786A | 1986-04-03 | 1986-04-03 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CH674074A5 true CH674074A5 (sv) | 1990-04-30 |
Family
ID=25301817
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CH1135/87A CH674074A5 (sv) | 1986-04-03 | 1987-03-25 |
Country Status (13)
| Country | Link |
|---|---|
| JP (1) | JPS62237264A (sv) |
| AU (1) | AU601413B2 (sv) |
| BE (1) | BE1003058A3 (sv) |
| BR (1) | BR8701523A (sv) |
| CA (1) | CA1267203A (sv) |
| CH (1) | CH674074A5 (sv) |
| DE (1) | DE3711241A1 (sv) |
| FR (1) | FR2596857B1 (sv) |
| GB (1) | GB2188724B (sv) |
| IT (1) | IT1202718B (sv) |
| MX (1) | MX168749B (sv) |
| SE (1) | SE460925B (sv) |
| ZA (1) | ZA871865B (sv) |
Families Citing this family (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| IT1230039B (it) * | 1988-07-21 | 1991-09-24 | Frimont Spa | Apparecchiatura automatica per la produzione di ghiaccio in cubetti. |
| IT1244433B (it) * | 1990-09-12 | 1994-07-15 | Castel Mac Spa | Dispositivo elettronico di controllo del livello del ghiaccio in un contenitore di raccolta per macchina per la produzione di ghiaccio in scaglie |
| WO1993008432A1 (en) * | 1991-10-22 | 1993-04-29 | Thermotech International Pty Ltd. | Cooling system |
| DE9114777U1 (de) * | 1991-11-27 | 1993-03-25 | Klüe, Ulrich, Dipl.-Ing., 2054 Geesthacht | Behälter für ein Eis-Wasser-Gemisch |
| US5671606A (en) * | 1995-09-18 | 1997-09-30 | Lancer Corporation | Method and apparatus for sensing and controlling the level of ice in an ice dispenser |
| AU2007293834B2 (en) | 2006-09-04 | 2010-05-20 | Lg Electronics Inc. | Control apparatus for taking out ice of refrigerator and method thereof |
| EP2064499B1 (en) | 2006-09-20 | 2013-07-10 | LG Electronics, Inc. | Refrigerator |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2763789A (en) * | 1953-03-03 | 1956-09-18 | Ohmart Corp | Control device |
| US3045445A (en) * | 1960-12-19 | 1962-07-24 | Carrier Corp | Ice making |
| US3322959A (en) * | 1963-05-09 | 1967-05-30 | Ranco Inc | Photoelectric level control system with lamp operated at alternate brightnesses |
| US3525232A (en) * | 1968-08-30 | 1970-08-25 | Gen Electric | Automatic ice maker control means |
| US3760397A (en) * | 1970-11-17 | 1973-09-18 | J Taggart | Alarm system |
| US3731496A (en) * | 1972-01-31 | 1973-05-08 | Gen Electric | Photoelectric ice level sensor |
| CH568627A5 (sv) * | 1974-07-15 | 1975-10-31 | Cerberus Ag | |
| US4205237A (en) * | 1977-12-16 | 1980-05-27 | Nartron Corporation | Liquid level sensor, pump system means and circuit means |
| GB2039847B (en) * | 1978-10-25 | 1982-09-15 | Vgl Ind Ltd | Dispensing device |
| IT1125671B (it) * | 1978-11-24 | 1986-05-14 | Loomhurst Ltd | Valvola di drenaggio di condensa |
| US4238930A (en) * | 1978-12-26 | 1980-12-16 | Whirlpool Corporation | Ice maker apparatus |
| DE3032934A1 (de) * | 1980-09-02 | 1982-04-08 | Claus-Hartwig Dipl.-Ing. 2211 Heiligenstedten Dahse | Verfahren zur regelung des fuellstandes eines einfuellschachtes einer schneckenpresse und regeleinrichtung zur durchfuehrung des verfahrens |
| IL64003A0 (en) * | 1981-10-06 | 1982-01-31 | Elmar Medical Systems Ltd | Sensor system for use in fluid monitoring and control |
| JPS59229626A (ja) * | 1983-06-10 | 1984-12-24 | Matsushita Electric Works Ltd | フロ−トレス液面リレ− |
| AU579648B2 (en) * | 1984-07-10 | 1988-12-01 | Coca-Cola Company, The | Automatic control system for filing beverage containers |
| FR2763789B1 (fr) * | 1997-05-27 | 1999-12-03 | Jean Hauville | Dispositif destine a realiser un mur de decoration horticole |
-
1987
- 1987-03-12 GB GB8705896A patent/GB2188724B/en not_active Expired
- 1987-03-13 ZA ZA871865A patent/ZA871865B/xx unknown
- 1987-03-18 CA CA000532329A patent/CA1267203A/en not_active Expired - Fee Related
- 1987-03-25 CH CH1135/87A patent/CH674074A5/de not_active IP Right Cessation
- 1987-03-26 FR FR878704222A patent/FR2596857B1/fr not_active Expired - Fee Related
- 1987-03-30 IT IT19902/87A patent/IT1202718B/it active
- 1987-03-31 MX MX005815A patent/MX168749B/es unknown
- 1987-03-31 AU AU70918/87A patent/AU601413B2/en not_active Ceased
- 1987-04-01 BE BE8700328A patent/BE1003058A3/fr active
- 1987-04-02 JP JP62082170A patent/JPS62237264A/ja active Granted
- 1987-04-03 DE DE19873711241 patent/DE3711241A1/de active Granted
- 1987-04-03 BR BR8701523A patent/BR8701523A/pt not_active IP Right Cessation
- 1987-07-06 SE SE8702772A patent/SE460925B/sv not_active IP Right Cessation
Also Published As
| Publication number | Publication date |
|---|---|
| ZA871865B (en) | 1987-09-03 |
| GB2188724A (en) | 1987-10-07 |
| SE8702772L (sv) | 1989-01-07 |
| IT8719902A0 (it) | 1987-03-30 |
| GB8705896D0 (en) | 1987-04-15 |
| CA1267203A (en) | 1990-03-27 |
| SE8702772D0 (sv) | 1987-07-06 |
| BE1003058A3 (fr) | 1991-11-12 |
| BR8701523A (pt) | 1988-01-19 |
| FR2596857B1 (fr) | 1992-04-30 |
| JPH0144983B2 (sv) | 1989-10-02 |
| MX168749B (es) | 1993-06-07 |
| FR2596857A1 (fr) | 1987-10-09 |
| DE3711241A1 (de) | 1987-10-15 |
| DE3711241C2 (sv) | 1991-03-21 |
| SE460925B (sv) | 1989-12-04 |
| GB2188724B (en) | 1989-11-15 |
| JPS62237264A (ja) | 1987-10-17 |
| AU7091887A (en) | 1987-10-08 |
| AU601413B2 (en) | 1990-09-13 |
| IT1202718B (it) | 1989-02-09 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PUE | Assignment |
Owner name: SCOTSMAN GROUP, INC. |
|
| PL | Patent ceased |