CA941317A - Automatic filter control - Google Patents

Automatic filter control

Info

Publication number
CA941317A
CA941317A CA080,909A CA80909A CA941317A CA 941317 A CA941317 A CA 941317A CA 80909 A CA80909 A CA 80909A CA 941317 A CA941317 A CA 941317A
Authority
CA
Canada
Prior art keywords
filter control
automatic filter
automatic
control
filter
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
Application number
CA080,909A
Inventor
Robert A. Whitlock
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.)
AQUAMATIC
Original Assignee
AQUAMATIC
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 AQUAMATIC filed Critical AQUAMATIC
Application granted granted Critical
Publication of CA941317A publication Critical patent/CA941317A/en
Expired legal-status Critical Current

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
CA080,909A 1969-05-15 1970-04-23 Automatic filter control Expired CA941317A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US82487369A 1969-05-15 1969-05-15

Publications (1)

Publication Number Publication Date
CA941317A true CA941317A (en) 1974-02-05

Family

ID=25242530

Family Applications (1)

Application Number Title Priority Date Filing Date
CA080,909A Expired CA941317A (en) 1969-05-15 1970-04-23 Automatic filter control

Country Status (5)

Country Link
US (1) US3616915A (en)
CA (1) CA941317A (en)
DE (2) DE2023302A1 (en)
FR (1) FR2047803A5 (en)
GB (1) GB1316461A (en)

Families Citing this family (13)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE2019691A1 (en) * 1970-04-23 1972-01-20 Cillichemie Filter and backwash device for swimming pools
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 (en) * 2010-10-15 2016-04-06 陕西富锐泳池环境科技有限公司 A kind of diatomaceous earth filter for water treatment
US10385578B2 (en) 2017-12-04 2019-08-20 Montasser M. Elsawi Polyvinyl chloride conduit for backwashing pool filters

Family Cites Families (9)

* Cited by examiner, † Cited by third party
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 (en) * 1962-12-21 1964-06-19 Electro Chimie Soc D Variable setpoint scale
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

Also Published As

Publication number Publication date
GB1316461A (en) 1973-05-09
FR2047803A5 (en) 1971-03-12
DE7017829U (en) 1973-08-30
DE2023302A1 (en) 1970-11-19
US3616915A (en) 1971-11-02

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