JPS55500241A - - Google Patents
Info
- Publication number
- JPS55500241A JPS55500241A JP50071679A JP50071679A JPS55500241A JP S55500241 A JPS55500241 A JP S55500241A JP 50071679 A JP50071679 A JP 50071679A JP 50071679 A JP50071679 A JP 50071679A JP S55500241 A JPS55500241 A JP S55500241A
- Authority
- JP
- Japan
- 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.)
- Granted
Links
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05D—SYSTEMS FOR CONTROLLING OR REGULATING NON-ELECTRIC VARIABLES
- G05D21/00—Control of chemical or physico-chemical variables, e.g. pH value
- G05D21/02—Control of chemical or physico-chemical variables, e.g. pH value characterised by the use of electric means
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Control Of Non-Electrical Variables (AREA)
- Accessories For Mixers (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US05/900,908 US4181951A (en) | 1978-04-28 | 1978-04-28 | In-line pH and pIon controller |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS55500241A true JPS55500241A (enExample) | 1980-04-24 |
| JPS633323B2 JPS633323B2 (enExample) | 1988-01-22 |
Family
ID=25413284
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP54500716A Expired JPS633323B2 (enExample) | 1978-04-28 | 1979-04-16 |
Country Status (6)
| Country | Link |
|---|---|
| US (1) | US4181951A (enExample) |
| EP (1) | EP0018971B1 (enExample) |
| JP (1) | JPS633323B2 (enExample) |
| CA (1) | CA1116719A (enExample) |
| DE (1) | DE2965265D1 (enExample) |
| WO (1) | WO1979000998A1 (enExample) |
Families Citing this family (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4762796A (en) * | 1981-10-05 | 1988-08-09 | Exxon Research And Engineering Company | pH control of a process stream |
| US4648043A (en) * | 1984-05-07 | 1987-03-03 | Betz Laboratories, Inc. | Computerized system for feeding chemicals into water treatment system |
| US4766550A (en) * | 1985-10-30 | 1988-08-23 | Westinghouse Electric Corp. | Automatic on-line chemistry monitoring system |
| GB8614530D0 (en) * | 1986-06-14 | 1986-07-23 | Clean Water Co Ltd | Liquid treatment process |
| US5073499A (en) * | 1988-04-15 | 1991-12-17 | Westinghouse Electric Corp. | Chemical diagnostic system |
| US5481260A (en) * | 1994-03-28 | 1996-01-02 | Nordson Corporation | Monitor for fluid dispensing system |
| US5696696A (en) * | 1994-10-11 | 1997-12-09 | Betzdearborn, Inc. | Apparatus and method for automatically achieving and maintaining congruent control in an industrial boiler |
| US5923571A (en) * | 1994-10-11 | 1999-07-13 | Betzdearborn, Inc. | Apparatus and method for automatic congruent control of multiple boilers sharing a common feedwater line and chemical feed point |
Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5382495A (en) * | 1976-12-28 | 1978-07-20 | Denki Kagaku Kogyo Kk | Automatic ph controller for flowing liquid |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3072146A (en) * | 1959-09-24 | 1963-01-08 | Gizeski Terrence | Digital regulator valve |
| US3664951A (en) * | 1970-07-22 | 1972-05-23 | Pollution Engineering Internat | Apparatus and process to treat waste water for pollution control and industrial reuse |
| US3718556A (en) * | 1970-07-22 | 1973-02-27 | Magna Corp | Ionic ph control |
| US3791793A (en) * | 1972-01-31 | 1974-02-12 | Leeds & Northrup Co | Adaptive feed forward-feedback control of the concentration of a selected ion of a solution |
| IT995258B (it) * | 1972-10-12 | 1975-11-10 | Benckiser Gmbh Joh A | Dispositivo per la misurazione del potenziale di ossiriduzione di mezzi liquidi |
| US3856668A (en) * | 1973-05-30 | 1974-12-24 | R Shubert | Method for treatment of coal washery waters |
-
1978
- 1978-04-28 US US05/900,908 patent/US4181951A/en not_active Expired - Lifetime
-
1979
- 1979-04-16 DE DE7979900433T patent/DE2965265D1/de not_active Expired
- 1979-04-16 JP JP54500716A patent/JPS633323B2/ja not_active Expired
- 1979-04-16 WO PCT/US1979/000236 patent/WO1979000998A1/en not_active Ceased
- 1979-04-27 CA CA000326485A patent/CA1116719A/en not_active Expired
- 1979-12-04 EP EP79900433A patent/EP0018971B1/en not_active Expired
Patent Citations (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS5382495A (en) * | 1976-12-28 | 1978-07-20 | Denki Kagaku Kogyo Kk | Automatic ph controller for flowing liquid |
Also Published As
| Publication number | Publication date |
|---|---|
| DE2965265D1 (en) | 1983-06-01 |
| EP0018971B1 (en) | 1983-04-27 |
| WO1979000998A1 (en) | 1979-11-29 |
| EP0018971A4 (en) | 1980-06-23 |
| CA1116719A (en) | 1982-01-19 |
| US4181951A (en) | 1980-01-01 |
| JPS633323B2 (enExample) | 1988-01-22 |
| EP0018971A1 (en) | 1980-11-26 |