FR2047803A5 - - Google Patents
Info
- Publication number
- FR2047803A5 FR2047803A5 FR7017708A FR7017708A FR2047803A5 FR 2047803 A5 FR2047803 A5 FR 2047803A5 FR 7017708 A FR7017708 A FR 7017708A FR 7017708 A FR7017708 A FR 7017708A FR 2047803 A5 FR2047803 A5 FR 2047803A5
- Authority
- FR
- France
- 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
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D37/00—Processes of filtration
- B01D37/04—Controlling the filtration
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US82487369A | 1969-05-15 | 1969-05-15 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| FR2047803A5 true FR2047803A5 (fr) | 1971-03-12 |
Family
ID=25242530
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| FR7017708A Expired FR2047803A5 (fr) | 1969-05-15 | 1970-05-14 |
Country Status (5)
| Country | Link |
|---|---|
| US (1) | US3616915A (fr) |
| CA (1) | CA941317A (fr) |
| DE (2) | DE2023302A1 (fr) |
| FR (1) | FR2047803A5 (fr) |
| GB (1) | GB1316461A (fr) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE2019691A1 (de) * | 1970-04-23 | 1972-01-20 | Cillichemie | Filter- und Rueckspuelvorrichtung fuer Schwimmbecken |
| US3948773A (en) * | 1974-06-13 | 1976-04-06 | Alfred Denholm Tucker | Automatic control for filtering equipment under pressure |
| US4411779A (en) * | 1978-04-24 | 1983-10-25 | Mcconnell Iii Frank G | Fluid treatment system |
| US4676914A (en) * | 1983-03-18 | 1987-06-30 | North Coast Systems, Inc. | Microprocessor based pump controller for backwashable filter |
| US5723043A (en) * | 1996-06-13 | 1998-03-03 | Hawk; William D. | Filtering apparatus having positively buoyant and negatively buoyant particulate |
| US5932092A (en) * | 1996-06-13 | 1999-08-03 | Hawk; William D. | Filtering apparatus having positively buoyant and negatively buoyant particulate |
| US6238556B1 (en) | 1999-10-01 | 2001-05-29 | Fluid Art Technologies, Llc | Filtration system including a back washable pre-filtration apparatus |
| US6407469B1 (en) | 1999-11-30 | 2002-06-18 | Balboa Instruments, Inc. | Controller system for pool and/or spa |
| US6958118B2 (en) * | 2002-08-27 | 2005-10-25 | Maax, Inc. | Self-cleaning water filtration system and method |
| US7030343B2 (en) * | 2002-10-03 | 2006-04-18 | Balboa Instruments, Inc. | Controller system for bathing installation |
| US20050087495A1 (en) * | 2003-10-22 | 2005-04-28 | Parke Geary G. | Adsorption system |
| CN102000453B (zh) * | 2010-10-15 | 2016-04-06 | 陕西富锐泳池环境科技有限公司 | 一种用于水处理的硅藻土过滤装置 |
| US10385578B2 (en) | 2017-12-04 | 2019-08-20 | Montasser M. Elsawi | Polyvinyl chloride conduit for backwashing pool filters |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US582399A (en) * | 1897-05-11 | Water-filter | ||
| US2858024A (en) * | 1955-01-20 | 1958-10-28 | Foxboro Co | Liquid filter backwash condition measurement |
| US3202170A (en) * | 1962-11-28 | 1965-08-24 | Edward L Holbrook | Valve assembly of interchangeable parts |
| FR1363896A (fr) * | 1962-12-21 | 1964-06-19 | Electro Chimie Soc D | Bascule à consigne variable |
| US3237640A (en) * | 1963-09-23 | 1966-03-01 | Aquamatic Inc | Flow control apparatus |
| US3360907A (en) * | 1963-10-17 | 1968-01-02 | Southwest Res Inst | Apparatus for cleaning filters |
| US3465782A (en) * | 1964-09-23 | 1969-09-09 | American Standard Inc | Float actuated rotary valve |
| US3465881A (en) * | 1967-06-27 | 1969-09-09 | Gerald H Rogers | Control mechanism for water softening systems |
| US3512644A (en) * | 1967-06-28 | 1970-05-19 | Jacuzzi Bros Inc | Automatic filter backwash assembly |
-
1969
- 1969-05-15 US US824873A patent/US3616915A/en not_active Expired - Lifetime
-
1970
- 1970-04-23 CA CA080,909A patent/CA941317A/en not_active Expired
- 1970-05-13 DE DE19702023302 patent/DE2023302A1/de active Pending
- 1970-05-13 DE DE7017829U patent/DE7017829U/de not_active Expired
- 1970-05-14 FR FR7017708A patent/FR2047803A5/fr not_active Expired
- 1970-05-15 GB GB2375270A patent/GB1316461A/en not_active Expired
Also Published As
| Publication number | Publication date |
|---|---|
| GB1316461A (en) | 1973-05-09 |
| DE7017829U (de) | 1973-08-30 |
| CA941317A (en) | 1974-02-05 |
| DE2023302A1 (de) | 1970-11-19 |
| US3616915A (en) | 1971-11-02 |