GB1312993A – Duplex filtering device
– Google Patents
GB1312993A – Duplex filtering device
– Google Patents
Duplex filtering device
Info
Publication number
GB1312993A
GB1312993A
GB3500170A
GB3500170A
GB1312993A
GB 1312993 A
GB1312993 A
GB 1312993A
GB 3500170 A
GB3500170 A
GB 3500170A
GB 3500170 A
GB3500170 A
GB 3500170A
GB 1312993 A
GB1312993 A
GB 1312993A
Authority
GB
United Kingdom
Prior art keywords
valve
filter
chamber
outlet
valves
Prior art date
1969-08-22
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
GB3500170A
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.)
Parker Hannifin Corp
Original Assignee
Parker Hannifin Corp
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.)
1969-08-22
Filing date
1970-07-20
Publication date
1973-04-11
1970-07-20
Application filed by Parker Hannifin Corp
filed
Critical
Parker Hannifin Corp
1973-04-11
Publication of GB1312993A
publication
Critical
patent/GB1312993A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
238000001914
filtration
Methods
0.000
title
1
238000005192
partition
Methods
0.000
abstract
1
238000011144
upstream manufacturing
Methods
0.000
abstract
1
Classifications
B—PERFORMING OPERATIONS; TRANSPORTING
B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
B01D—SEPARATION
B01D35/00—Other filtering devices; Auxiliary devices for filtration; Filter housing constructions
B01D35/12—Devices for taking out of action one or more units of multi- unit filters, e.g. for regeneration
Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
Y10T137/00—Fluid handling
Y10T137/794—With means for separating solid material from the fluid
Y10T137/7976—Plural separating elements
Abstract
1312993 Duplex filter PARKER-HANNIFIN CORP 20 July 1970 [22 Aug 1969] 35001/ 70 Heading BID [Also in Division F2] In a filter comprising two filter chambers 16, 18 and a valve assembly 12 which connects either chamber with an inlet (42) and an outlet (44) (Fig. 2, not shown) while disconnecting the other chamber to allow its filter element 54 to be replaced, the assembly 12 comprises inlet valve 112 and outlet valve 114 bearing respectively on annular seats 118, 136 in a central partition 20, the valve 112 being turned directly by a handle 130 secured to tubular extension 124 of the valve, and valve 114 being connected to move with valve 112 by a shaft 152 connected to the respective valves by universal links 170, 172. This ensures that the valves move together but avoids the need for very accurate alignment of their respective seats. The inlet (42) and outlet (44) open into the bore 120 above and below the central part of shaft 152. Before turning the valve assembly from one position to the other, a pilot valve 188 is raised manually from its seat 184 to connect the upstream parts of the filter chambers and eliminate the differential pressure which would otherwise tend to jam valves 112 and 114 onto their seats. Each chamber has a pressure-operated by-pass valve 78, whose opening is indicated externally by device 76, and a removable cover 68 and drain plug 48.
GB3500170A
1969-08-22
1970-07-20
Duplex filtering device
Expired
GB1312993A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US85226169A
1969-08-22
1969-08-22
Publications (1)
Publication Number
Publication Date
GB1312993A
true
GB1312993A
(en)
1973-04-11
Family
ID=25312880
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB3500170A
Expired
GB1312993A
(en)
1969-08-22
1970-07-20
Duplex filtering device
Country Status (3)
Country
Link
US
(1)
US3618781A
(en)
CA
(1)
CA930641A
(en)
GB
(1)
GB1312993A
(en)
Cited By (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4107046A
(en)
*
1975-09-29
1978-08-15
Teledyne Industries, Inc.
Water purifier
JPS5553517U
(en)
*
1978-10-06
1980-04-10
GB2124919A
(en)
*
1982-08-12
1984-02-29
Vee Bee Limited
Filter/strainer construction
DE3313539A1
(en)
*
1983-04-14
1984-10-18
EPE Eppensteiner GmbH, 6834 Ketsch
Filter unit
GB2150457A
(en)
*
1983-12-01
1985-07-03
Richard Bartley Whiteside
Oil filtering apparatus
GB2289930A
(en)
*
1994-06-01
1995-12-06
Core Ind Inc
Duplex strainer
Families Citing this family (24)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US3940222A
(en)
*
1973-01-23
1976-02-24
J. Zink Co., Inc.
Filter changing valve unit
US3915866A
(en)
*
1973-10-11
1975-10-28
Parker Hannifin Corp
High pressure filtering device
US4046695A
(en)
*
1976-06-07
1977-09-06
Tucker John W
Duplex basket strainer arrangement
DE3032690A1
(en)
*
1980-08-29
1982-05-06
Agfa-Gevaert Ag, 5090 Leverkusen
METHOD AND DEVICE FOR CONTINUOUS FILTERING OF LIQUIDS
US4664798A
(en)
*
1984-10-15
1987-05-12
Bergh Leslie H
Apparatus and method for filtering a fluid
US4606820A
(en)
*
1984-10-29
1986-08-19
R-P & C Valve, Inc.
Duplex strainer
US4786409A
(en)
*
1987-04-20
1988-11-22
Parker-Hannifin Corporation
Duplex filter assembly
DE8907211U1
(en)
*
1989-06-13
1989-07-27
Hydac Filtertechnik Gmbh, 6603 Sulzbach, De
US5383491A
(en)
*
1994-01-19
1995-01-24
Heilman; David D.
Dual tandem flow diverter valve system
US6082401A
(en)
*
1995-01-06
2000-07-04
Colder Products Company
Low spill high flow quick coupling valve assembly
WO1996021120A1
(en)
*
1995-01-06
1996-07-11
Colder Products Company
Low spill high flow quick coupling valve assembly
US6161578A
(en)
*
1996-10-09
2000-12-19
Colder Products Company
Low spill high flow quick coupling valve assembly
US6135145A
(en)
*
1997-06-06
2000-10-24
Maag Pump Systems Textron Inc.
Valve and filtration arrangement for polymer processing system
US5893969A
(en)
*
1997-12-29
1999-04-13
Mechanical Manufacturing Corp.
Filter vessel safety apparatus
US6117338A
(en)
*
1999-03-25
2000-09-12
Solutia, Inc.
Continuous polymer melt filtration
US6197195B1
(en)
1999-03-29
2001-03-06
H-Tech, Inc.
Fluid handling apparatus and flow control assembly therefor
WO2012067569A1
(en)
2010-11-16
2012-05-24
Delaval Holding Ab
A milking system, and a method for operating a milking system
CN103212235B
(en)
*
2013-03-13
2016-02-10
宁波长壁流体动力科技有限公司
Automatically controlled backwash filter
CN104524858A
(en)
*
2014-12-22
2015-04-22
中煤北京煤矿机械有限责任公司
Automatic backwashing filter
KR101589040B1
(en)
*
2015-06-25
2016-01-27
최병화
Pump system and its controling method for cleaning strainer
CA2916272A1
(en)
*
2015-12-23
2017-06-23
Jay R. Morris
High pressure sand trap with screen
NL2017218B1
(en)
*
2016-07-22
2018-01-30
Spiro Entpr Bv
Liquid treatment device
US11679348B2
(en)
*
2017-12-29
2023-06-20
Enercorp Engineered Solutions Inc.
Horizontal sand separator assembly
US20220323886A1
(en)
*
2021-04-08
2022-10-13
Chevron U.S.A. Inc.
Filtration System and Method
Family Cites Families (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1288257A
(en)
*
1917-08-08
1918-12-17
Edwin Fergerson Stewart
Duplex strainer.
GB291592A
(en)
*
1927-05-13
1928-06-07
Royles Ltd
Improvements in twin strainers and valves for water mains and the like
US2681736A
(en)
*
1948-08-20
1954-06-22
Coen Company
Duplex strainer
1969
1969-08-22
US
US3618781D
patent/US3618781A/en
not_active
Expired – Lifetime
1970
1970-07-15
CA
CA088321A
patent/CA930641A/en
not_active
Expired
1970-07-20
GB
GB3500170A
patent/GB1312993A/en
not_active
Expired
Cited By (8)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US4107046A
(en)
*
1975-09-29
1978-08-15
Teledyne Industries, Inc.
Water purifier
JPS5553517U
(en)
*
1978-10-06
1980-04-10
JPS6234572Y2
(en)
*
1978-10-06
1987-09-03
GB2124919A
(en)
*
1982-08-12
1984-02-29
Vee Bee Limited
Filter/strainer construction
DE3313539A1
(en)
*
1983-04-14
1984-10-18
EPE Eppensteiner GmbH, 6834 Ketsch
Filter unit
GB2150457A
(en)
*
1983-12-01
1985-07-03
Richard Bartley Whiteside
Oil filtering apparatus
GB2289930A
(en)
*
1994-06-01
1995-12-06
Core Ind Inc
Duplex strainer
GB2289930B
(en)
*
1994-06-01
1998-01-28
Core Ind Inc
Duplex strainer
Also Published As
Publication number
Publication date
CA930641A
(en)
1973-07-24
US3618781A
(en)
1971-11-09
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Legal Events
Date
Code
Title
Description
1973-08-22
PS
Patent sealed [section 19, patents act 1949]
1984-03-14
PCNP
Patent ceased through non-payment of renewal fee
