GB2346444B - Apparatus for determining the dimensions of particles in a carrier fluid - Google Patents

Apparatus for determining the dimensions of particles in a carrier fluid

Info

Publication number: GB2346444B
Authority: GB; United Kingdom
Prior art keywords: dimensions; particles; determining; carrier fluid; carrier
Prior art date: 1999-01-23
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

GB0001327A

Other versions

GB2346444A (en

GB0001327D0 (en

Inventor

Phillip Edward Harley

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.)

HARLEY SCIENT Ltd

Original Assignee

HARLEY SCIENT Ltd

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.)

1999-01-23

Filing date

2000-01-20

Publication date

2003-07-02

2000-01-20 Application filed by HARLEY SCIENT Ltd filed Critical HARLEY SCIENT Ltd

2000-03-08 Publication of GB0001327D0 publication Critical patent/GB0001327D0/en

2000-08-09 Publication of GB2346444A publication Critical patent/GB2346444A/en

2003-07-02 Application granted granted Critical

2003-07-02 Publication of GB2346444B publication Critical patent/GB2346444B/en

2020-01-20 Anticipated expiration legal-status Critical

Status Expired - Fee Related legal-status Critical Current

Classifications

- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means
- G01N15/0211—Investigating a scatter or diffraction pattern
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N15/00—Investigating characteristics of particles; Investigating permeability, pore-volume or surface-area of porous materials
- G01N15/02—Investigating particle size or size distribution
- G01N15/0205—Investigating particle size or size distribution by optical means
- G01N2015/025—Methods for single or grouped particles

Landscapes

Chemical & Material Sciences (AREA)
Dispersion Chemistry (AREA)
Physics & Mathematics (AREA)
Health & Medical Sciences (AREA)
Life Sciences & Earth Sciences (AREA)
Analytical Chemistry (AREA)
Biochemistry (AREA)
General Health & Medical Sciences (AREA)
General Physics & Mathematics (AREA)
Immunology (AREA)
Pathology (AREA)
Investigating Or Analysing Materials By Optical Means (AREA)

GB0001327A 1999-01-23 2000-01-20 Apparatus for determining the dimensions of particles in a carrier fluid Expired - Fee Related GB2346444B (en)

Applications Claiming Priority (1)

Application Number	Priority Date	Filing Date	Title
GBGB9901406.0A GB9901406D0 (en)	1999-01-23	1999-01-23	Airborne particle detector

Publications (3)

Publication Number	Publication Date
GB0001327D0 GB0001327D0 (en)	2000-03-08
GB2346444A GB2346444A (en)	2000-08-09
GB2346444B true GB2346444B (en)	2003-07-02

Family

ID=10846325

Family Applications (2)

Application Number	Title	Priority Date	Filing Date
GBGB9901406.0A Ceased GB9901406D0 (en)	1999-01-23	1999-01-23	Airborne particle detector
GB0001327A Expired - Fee Related GB2346444B (en)	1999-01-23	2000-01-20	Apparatus for determining the dimensions of particles in a carrier fluid

Family Applications Before (1)

Application Number	Title	Priority Date	Filing Date
GBGB9901406.0A Ceased GB9901406D0 (en)	1999-01-23	1999-01-23	Airborne particle detector

Country Status (1)

Country	Link
GB (2)	GB9901406D0 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
GB2494733A (en) *	2011-09-14	2013-03-20	Malvern Instr Ltd	Measuring particle size distribution by light scattering

Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4957363A (en) *	1987-07-03	1990-09-18	Hitachi, Ltd.	Apparatus for measuring characteristics of particles in fluid by detecting light scattered at the particles
GB2311603A (en) *	1996-03-27	1997-10-01	Univ Hertfordshire	Particle analyser
EP0872722A1 (en) *	1997-04-15	1998-10-21	Nihon Kagaku Kogyo Co., Ltd.	Particle measuring apparatus and its calibration method
GB2340936A (en) *	1998-08-22	2000-03-01	Malvern Instr Ltd	Particle size distribution measurement using dual sources of different wavelengths

1999
- 1999-01-23 GB GBGB9901406.0A patent/GB9901406D0/en not_active Ceased
2000
- 2000-01-20 GB GB0001327A patent/GB2346444B/en not_active Expired - Fee Related

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number	Priority date	Publication date	Assignee	Title
US4957363A (en) *	1987-07-03	1990-09-18	Hitachi, Ltd.	Apparatus for measuring characteristics of particles in fluid by detecting light scattered at the particles
GB2311603A (en) *	1996-03-27	1997-10-01	Univ Hertfordshire	Particle analyser
EP0872722A1 (en) *	1997-04-15	1998-10-21	Nihon Kagaku Kogyo Co., Ltd.	Particle measuring apparatus and its calibration method
GB2340936A (en) *	1998-08-22	2000-03-01	Malvern Instr Ltd	Particle size distribution measurement using dual sources of different wavelengths

Also Published As

Publication number	Publication date
GB9901406D0 (en)	1999-03-10
GB2346444A (en)	2000-08-09
GB0001327D0 (en)	2000-03-08

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Legal Events

Date	Code	Title	Description
2004-09-08	PCNP	Patent ceased through non-payment of renewal fee	Effective date: 20040120