GB2256602B - Air filter - Google Patents

Air filter

Info

Publication number: GB2256602B
Authority: GB; United Kingdom
Prior art keywords: air filter; filter; air
Prior art date: 1991-06-13
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 - Fee Related

Application number

GB9212633A

Other versions

GB9212633D0 (en

GB2256602A (en

Inventor

Thomas Ivor Goodwin

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.)

Individual

Original Assignee

Individual

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.)

1991-06-13

Filing date

1992-06-15

Publication date

1995-01-25

1991-06-13 Priority claimed from GB919112713A external-priority patent/GB9112713D0/en

1992-06-15 Application filed by Individual filed Critical Individual

1992-06-15 Priority to GB9212633A priority Critical patent/GB2256602B/en

1992-07-29 Publication of GB9212633D0 publication Critical patent/GB9212633D0/en

1992-12-16 Publication of GB2256602A publication Critical patent/GB2256602A/en

1995-01-25 Application granted granted Critical

1995-01-25 Publication of GB2256602B publication Critical patent/GB2256602B/en

2012-06-15 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D46/00—Filters or filtering processes specially modified for separating dispersed particles from gases or vapours
- B01D46/24—Particle separators, e.g. dust precipitators, using rigid hollow filter bodies
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D39/00—Filtering material for liquid or gaseous fluids
- B01D39/14—Other self-supporting filtering material ; Other filtering material
- B01D39/16—Other self-supporting filtering material ; Other filtering material of organic material, e.g. synthetic fibres
- B01D39/1669—Cellular material
- B01D39/1676—Cellular material of synthetic origin
- F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
- F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
- F02M—SUPPLYING COMBUSTION ENGINES IN GENERAL WITH COMBUSTIBLE MIXTURES OR CONSTITUENTS THEREOF
- F02M35/00—Combustion-air cleaners, air intakes, intake silencers, or induction systems specially adapted for, or arranged on, internal-combustion engines
- F02M35/02—Air cleaners
- F02M35/024—Air cleaners using filters, e.g. moistened
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0464—Impregnants
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/04—Additives and treatments of the filtering material
- B01D2239/0471—Surface coating material
- B01D2239/0478—Surface coating material on a layer of the filter
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/065—More than one layer present in the filtering material
- B01D2239/0681—The layers being joined by gluing
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2239/00—Aspects relating to filtering material for liquid or gaseous fluids
- B01D2239/06—Filter cloth, e.g. knitted, woven non-woven; self-supported material
- B01D2239/069—Special geometry of layers
- B01D2239/0695—Wound layers
- B—PERFORMING OPERATIONS; TRANSPORTING
- B01—PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL
- B01D—SEPARATION
- B01D2275/00—Filter media structures for filters specially adapted for separating dispersed particles from gases or vapours
- B01D2275/10—Multiple layers
- B01D2275/105—Wound layers

Landscapes

Chemical & Material Sciences (AREA)
Engineering & Computer Science (AREA)
Chemical Kinetics & Catalysis (AREA)
Combustion & Propulsion (AREA)
Mechanical Engineering (AREA)
General Engineering & Computer Science (AREA)
Filtering Of Dispersed Particles In Gases (AREA)
Filtering Materials (AREA)

GB9212633A 1991-06-13 1992-06-15 Air filter Expired - Fee Related GB2256602B (en)

Priority Applications (1)

Application Number	Priority Date	Filing Date	Title
GB9212633A GB2256602B (en)	1991-06-13	1992-06-15	Air filter

Applications Claiming Priority (2)

Application Number	Priority Date	Filing Date	Title
GB919112713A GB9112713D0 (en)	1991-06-13	1991-06-13	Air filter
GB9212633A GB2256602B (en)	1991-06-13	1992-06-15	Air filter

Publications (3)

Publication Number	Publication Date
GB9212633D0 GB9212633D0 (en)	1992-07-29
GB2256602A GB2256602A (en)	1992-12-16
GB2256602B true GB2256602B (en)	1995-01-25

Family

ID=26299066

Family Applications (1)

Application Number	Title	Priority Date	Filing Date
GB9212633A Expired - Fee Related GB2256602B (en)	1991-06-13	1992-06-15	Air filter

Country Status (1)

Country	Link
GB (1)	GB2256602B (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1271867A (en) *	1968-10-04	1972-04-26	Amf Inc	Filter element
US3680709A (en) *	1970-11-18	1972-08-01	Charles L Snow	Cartridge type filter and method of making same
GB2230205A (en) *	1989-04-11	1990-10-17	Seitz Filter Werke	Filter element

1992
- 1992-06-15 GB GB9212633A patent/GB2256602B/en not_active Expired - Fee Related

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB1271867A (en) *	1968-10-04	1972-04-26	Amf Inc	Filter element
US3680709A (en) *	1970-11-18	1972-08-01	Charles L Snow	Cartridge type filter and method of making same
GB2230205A (en) *	1989-04-11	1990-10-17	Seitz Filter Werke	Filter element

Non-Patent Citations (1)

* Cited by examiner, † Cited by third party
Title
D B Purchas Solid/Liquid Separation Technology 1981 Uplands Press pp130-131 *

Also Published As

Publication number	Publication date
GB9212633D0 (en)	1992-07-29
GB2256602A (en)	1992-12-16

Publication	Publication Date	Title
GB2259869B (en)	1994-10-26	Filter units
GB9112615D0 (en)	1991-07-31	Filter
GB2222964B (en)	1993-03-03	Air filter
GB9217666D0 (en)	1992-09-30	Air filter
GB2250454B (en)	1993-03-03	Air filter
GB2274794B (en)	1997-01-08	Air filter
GB2254017B (en)	1994-05-11	Respirator filters
GB2248409B (en)	1994-04-13	Air filter
GB9123210D0 (en)	1991-12-18	Filter
GB9210617D0 (en)	1992-07-01	Filter
GB9108797D0 (en)	1991-06-12	Filters
GB2256602B (en)	1995-01-25	Air filter
GB9100519D0 (en)	1991-02-20	Filters
ZA924352B (en)	1993-03-31	Air filter
GB9116313D0 (en)	1991-09-11	Air filter
GB9108968D0 (en)	1991-06-12	Air purifier
EP0533381A3 (en)	1993-05-12	Filter units
GB9125224D0 (en)	1992-01-29	Air filter means
PL287992A1 (en)	1992-06-01	Air filter
ZA903210B (en)	1991-02-27	Air filter
GB9023575D0 (en)	1990-12-12	Air filter
HU9202947D0 (en)	1992-12-28	Air filter
GB9106461D0 (en)	1991-05-15	Respirator filters
AU615154B1 (en)	1991-09-19	Air filter
GB9218880D0 (en)	1992-10-21	Air filters

Legal Events

Date	Code	Title	Description
1998-11-25	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
1999-09-01	732E	Amendments to the register in respect of changes of name or changes affecting rights (sect. 32/1977)
2001-02-07	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20000615