GB1462509A – Photometric instruments
– Google Patents
GB1462509A – Photometric instruments
– Google Patents
Photometric instruments
Info
Publication number
GB1462509A
GB1462509A
GB2884874A
GB2884874A
GB1462509A
GB 1462509 A
GB1462509 A
GB 1462509A
GB 2884874 A
GB2884874 A
GB 2884874A
GB 2884874 A
GB2884874 A
GB 2884874A
GB 1462509 A
GB1462509 A
GB 1462509A
Authority
GB
United Kingdom
Prior art keywords
enclosure
detectors
base
source
instrument
Prior art date
1973-07-02
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
GB2884874A
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.)
1973-07-02
Filing date
1974-06-28
Publication date
1977-01-26
1974-06-28
Application filed by Individual
filed
Critical
Individual
1977-01-26
Publication of GB1462509A
publication
Critical
patent/GB1462509A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
G01N21/00—Investigating or analysing materials by the use of optical means, i.e. using sub-millimetre waves, infrared, visible or ultraviolet light
G01N21/17—Systems in which incident light is modified in accordance with the properties of the material investigated
G01N21/25—Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
G01N21/251—Colorimeters; Construction thereof
Abstract
1462509 Temperature stabilized instrument W RALSTON 28 June 1974 [2 July 1973] 28848/74 Heading G1A A temperature stabilized instrument for measuring optical properties has opto-electrical detectors and a sample inside an enclosure of high thermal capacity, a source outside the enclosure and radiation passages through the walls. As shown, the enclosure has a measurement area comprising a cavity 22 for a sample container 51, and lenses 84, 86 for focusing two light beams from source 76 and filter 80 on to detectors 88, 90, an electronics area 116 for operating on the signals from the detectors and a set of cavities 24-34 for preheating samples. A wall of heat diffusing material 96 separates sample from the detectors and the detectors are mounted in a block 106 which connects them thermally but which is thermally insulated from the enclosure base. The walls, base and lid 44 of the enclosure are preferably made of cast metal and ore surrounded by a jacket 59, 60 of insulating material e.g. polyurethane. A thermistor 130 spaced equally from the detectors and fixed in a hole in the base, acts as a temperature sensing device and is used to control a heater in thermal contact with the base of the container. Cavities 24-36 may also be heated. The enclosure and source are preferably mounted in an instrument which has controls for varying operating conditions and an output meter calibrated to indicate absorbance.
GB2884874A
1973-07-02
1974-06-28
Photometric instruments
Expired
GB1462509A
(en)
Applications Claiming Priority (1)
Application Number
Priority Date
Filing Date
Title
US375419A
US3877817A
(en)
1973-07-02
1973-07-02
Temperature stabilized photometer for kinetic analysis
Publications (1)
Publication Number
Publication Date
GB1462509A
true
GB1462509A
(en)
1977-01-26
Family
ID=23480817
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2884874A
Expired
GB1462509A
(en)
1973-07-02
1974-06-28
Photometric instruments
Country Status (3)
Country
Link
US
(1)
US3877817A
(en)
DE
(1)
DE2430927A1
(en)
GB
(1)
GB1462509A
(en)
Families Citing this family (29)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5255578A
(en)
*
1975-10-31
1977-05-07
Hitachi Ltd
Analyzing apparatus
US4090071A
(en)
*
1976-06-10
1978-05-16
Hoffman Engineering Corporation
Photometric instrument with thermoelectric control of a photovoltaic semiconductor detector
US4239394A
(en)
*
1977-04-08
1980-12-16
A/S Foss Electric
Liquid analyzing apparatus
US4158778A
(en)
*
1978-03-01
1979-06-19
Armstrong Cork Company
Optoelectronic scanning device
DE2823138A1
(en)
*
1978-05-26
1979-11-29
Helma Gmbh & Co Kg
CUVETTE
US4213703A
(en)
*
1978-05-30
1980-07-22
Beckman Instruments, Inc.
Photometer with stationary sample holder and rotatable shutter
US4304490A
(en)
*
1978-10-30
1981-12-08
Hitachi, Ltd.
Spectrophotometer
DE3242453A1
(en)
*
1982-11-12
1984-05-17
Dr. Bruno Lange Gmbh, 1000 Berlin
Photometer
US4888484A
(en)
*
1986-02-20
1989-12-19
Automatik Machinery Corporation
Apparatus and method for spectrophotometric analysis of a material in a moving process stream
JPS6438636A
(en)
*
1987-08-05
1989-02-08
Ajinomoto Kk
Fluorescent analyzer
US4936682A
(en)
*
1987-08-11
1990-06-26
Associates Of Cape Cod, Inc.
Instrument for independently and kinetically measuring light transpassion through a plurality of samples
US4933543A
(en)
*
1987-09-25
1990-06-12
Chesley F. Carlson
Dark signal compensation for diode arrays
US5092674A
(en)
*
1989-07-10
1992-03-03
General Atomics
Micropipette adaptor for spectrophotometers with temperature control
US5241363A
(en)
*
1989-07-10
1993-08-31
General Atomics
Micropipette adaptor with temperature control for PCR amplification
US5166743A
(en)
*
1989-07-10
1992-11-24
General Atomics
Assembly for converting a spectrophotometer to a fluorometer
DE69502814T2
(en)
*
1994-02-25
1998-11-12
Distek Inc
RESOLUTION TEST DEVICE
US5742389A
(en)
*
1994-03-18
1998-04-21
Lucid Technologies Inc.
Spectrophotometer and electro-optic module especially suitable for use therein
US6444462B1
(en)
2000-04-25
2002-09-03
Microcensus, Llc
Incubation system for an analyzer apparatus
US6493085B1
(en)
2000-05-24
2002-12-10
Microcensus, Llc
Light analyzer apparatus
US6768549B1
(en)
2000-04-25
2004-07-27
John Edward Pfeifer
Ampoule analyzer apparatus
US6727480B2
(en)
2000-06-23
2004-04-27
Varian, Inc.
Waterless vessel heating system and method
US6303909B1
(en)
2000-06-23
2001-10-16
Varian, Inc.
Waterless vessel heating system and method
US6741348B2
(en)
*
2002-04-29
2004-05-25
The Curators Of The University Of Missouri
Ultrasensitive spectrophotometer
US7268881B2
(en)
*
2004-02-17
2007-09-11
The Curators Of The University Of Missouri
Light scattering detector
US7262844B2
(en)
*
2005-01-13
2007-08-28
The Curators Of The University Of Missouri
Ultrasensitive spectrophotometer
US7903252B2
(en)
*
2005-01-13
2011-03-08
The Curators Of The University Of Missouri
Noise cancellation in fourier transform spectrophotometry
EA200801809A1
(en)
*
2006-02-08
2008-12-30
ДСМ АйПи АССЕТС Б.В.
COMBINATION OF READER AND THERMOSTAT
WO2007103044A2
(en)
2006-03-09
2007-09-13
Alltech Associates Inc.
Evaporative light scattering detector
WO2009152321A1
(en)
*
2008-06-11
2009-12-17
The Curators Of The University Of Missouri
Liquid chromatography detector and flow controller therefor
Family Cites Families (7)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1971317A
(en)
*
1929-10-28
1934-08-21
Sheldon Electric Corp
Apparatus and method for the comparison of colors
US2193437A
(en)
*
1938-07-14
1940-03-12
William H Summerson
Colorimeter
US2424858A
(en)
*
1945-01-25
1947-07-29
Jurg A Senn
Colorimeter
US2447985A
(en)
*
1945-06-25
1948-08-24
Mass Morris
Device for determining photoelectrically the concentration of a solute in a solvent
US3327126A
(en)
*
1964-02-28
1967-06-20
Paul E V Shannon
Emission spectrometer with cooled photomultiplier tube detector
US3593568A
(en)
*
1969-04-01
1971-07-20
Bio Dynamics Inc
Prothrombin time measuring apparatus with means to start the timer in response to the initial decrement of optical transmissivity
US3748044A
(en)
*
1969-09-02
1973-07-24
Abbott Lab
Digital chemical analysis apparatus
1973
1973-07-02
US
US375419A
patent/US3877817A/en
not_active
Expired – Lifetime
1974
1974-06-27
DE
DE2430927A
patent/DE2430927A1/en
active
Pending
1974-06-28
GB
GB2884874A
patent/GB1462509A/en
not_active
Expired
Also Published As
Publication number
Publication date
DE2430927A1
(en)
1975-01-23
US3877817A
(en)
1975-04-15
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Legal Events
Date
Code
Title
Description
1977-06-10
PS
Patent sealed [section 19, patents act 1949]
1986-02-26
PCNP
Patent ceased through non-payment of renewal fee
