GB1439161A – Digital thermometer and method of manufacture
– Google Patents
GB1439161A – Digital thermometer and method of manufacture
– Google Patents
Digital thermometer and method of manufacture
Info
Publication number
GB1439161A
GB1439161A
GB2821973A
GB2821973A
GB1439161A
GB 1439161 A
GB1439161 A
GB 1439161A
GB 2821973 A
GB2821973 A
GB 2821973A
GB 2821973 A
GB2821973 A
GB 2821973A
GB 1439161 A
GB1439161 A
GB 1439161A
Authority
GB
United Kingdom
Prior art keywords
solution
mixture
weight per
per cent
cholesteryl
Prior art date
1972-06-15
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
GB2821973A
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 RESEARCH ROBERT
Original Assignee
PARKER RESEARCH ROBERT
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.)
1972-06-15
Filing date
1973-06-13
Publication date
1976-06-09
1973-06-13
Application filed by PARKER RESEARCH ROBERT
filed
Critical
PARKER RESEARCH ROBERT
1976-06-09
Publication of GB1439161A
publication
Critical
patent/GB1439161A/en
Status
Expired
legal-status
Critical
Current
Links
Espacenet
Global Dossier
Discuss
Classifications
G—PHYSICS
G01—MEASURING; TESTING
G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
G01K11/00—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00
G01K11/12—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance
G01K11/16—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials
G01K11/165—Measuring temperature based upon physical or chemical changes not covered by groups G01K3/00, G01K5/00, G01K7/00 or G01K9/00 using changes in colour, translucency or reflectance of organic materials of organic liquid crystals
C—CHEMISTRY; METALLURGY
C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
C09K19/00—Liquid crystal materials
C09K19/52—Liquid crystal materials characterised by components which are not liquid crystals, e.g. additives with special physical aspect: solvents, solid particles
C09K19/54—Additives having no specific mesophase characterised by their chemical composition
C09K19/542—Macromolecular compounds
C09K19/544—Macromolecular compounds as dispersing or encapsulating medium around the liquid crystal
G—PHYSICS
G01—MEASURING; TESTING
G01K—MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
G01K1/00—Details of thermometers not specially adapted for particular types of thermometer
G01K1/02—Means for indicating or recording specially adapted for thermometers
G01K1/028—Means for indicating or recording specially adapted for thermometers arrangements for numerical indication
C—CHEMISTRY; METALLURGY
C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
C09K—MATERIALS FOR MISCELLANEOUS APPLICATIONS, NOT PROVIDED FOR ELSEWHERE
C09K2219/00—Aspects relating to the form of the liquid crystal [LC] material, or by the technical area in which LC material are used
C09K2219/13—Aspects relating to the form of the liquid crystal [LC] material, or by the technical area in which LC material are used used in the technical field of thermotropic switches
Abstract
1439161 Making microcapsules ROBERT PARKER RESEARCH Inc 13 June 1973 [15 June 1972 16 April 1973] 28219/73 Heading B8C [Also in Divisions B2 D1 G1 and G5] In a method for making microencapsulated temperature responsive liquid crystals for digital reading thermometers (see Division G1), acid extracted pigskin gelatin (1À25 g.), having a bloom strength of 250-305 g. and an isoelectric point of pH 8-9, and 1À25 g. of gum arabic, are stirred with 125 g. of distilled water at 55 C. in a Waring blender to yield a solution of about pH 4À5. The pH is initially adjusted to 6À0 when the solution is formed by the dropwise addition of 20 weight per cent aqueous sodium hydroxide. To the solution is added a solution of 2 g. of cholesteryl propionate in 8 g. of cholesteryl oleate. The cholesteryl derivative materials are emulsified in the Waring blender vessel to an average droplet size of 10-50 Á and the pH slowly reduced by the dropwise addition of 14 weight per cent aqueous acetic acid. The addition of the acid is continued until the single, liquid walled, capsules cluster to form aggregates having diameters at about 25-100 Á. At this time, the pH is about five. The mixture is then chilled with an ice bath to below 10 C., while the agitation is continued. At 10 C., 0À6 ml. of a 25 weight per cent aqueous solution of pentanedial, is added to the blender vessel and the system stirred for about 12 hours while slowly allowing the mixture to warm to room temperature. At the end of that time, the capsule walls are firm and hardened and the mixture is poured through a sieve having openings of 74 Á. The material passing the screen is suitable for use.
GB2821973A
1972-06-15
1973-06-13
Digital thermometer and method of manufacture
Expired
GB1439161A
(en)
Applications Claiming Priority (2)
Application Number
Priority Date
Filing Date
Title
US26306472A
1972-06-15
1972-06-15
US351220A
US3861213A
(en)
1972-06-15
1973-04-16
Digital thermometer and method of manufacture
Publications (1)
Publication Number
Publication Date
GB1439161A
true
GB1439161A
(en)
1976-06-09
Family
ID=26949646
Family Applications (1)
Application Number
Title
Priority Date
Filing Date
GB2821973A
Expired
GB1439161A
(en)
1972-06-15
1973-06-13
Digital thermometer and method of manufacture
Country Status (6)
Country
Link
US
(1)
US3861213A
(en)
JP
(2)
JPS529395B2
(en)
DE
(1)
DE2330071C3
(en)
FR
(1)
FR2189729B3
(en)
GB
(1)
GB1439161A
(en)
IT
(1)
IT976951B
(en)
Cited By (2)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2118228A
(en)
*
1982-03-13
1983-10-26
Edward Raymond Stevens
Hazard warning device
GB2197109A
(en)
*
1986-09-17
1988-05-11
Liquid Crystal Devices Ltd
Laminated product incorporating thermochromic liquid crystal material
Families Citing this family (28)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
JPS5332614Y2
(en)
*
1973-01-23
1978-08-12
US3965742A
(en)
*
1973-04-16
1976-06-29
Rpr, Inc.
Digital thermometer and method of manufacture
JPS5275478U
(en)
*
1975-12-03
1977-06-06
US4034609A
(en)
*
1976-01-02
1977-07-12
Fuller David L
Digital sensing device
US4132464A
(en)
*
1976-02-06
1979-01-02
Hideki Ishii
Liquid crystal device
JPS52131986A
(en)
*
1976-04-28
1977-11-05
Emitsukusu Kk
Manufacture of liquid crystal displaying multiicolor letters* figures or patterns on common cholesteric liquid crystals
US4198920A
(en)
*
1976-11-22
1980-04-22
Russell William F
Energy conservation indicator
JPS6221115Y2
(en)
*
1980-10-24
1987-05-28
JPH0318900Y2
(en)
*
1981-06-10
1991-04-22
US4605284A
(en)
*
1981-09-16
1986-08-12
Manchester R & D Partnership
Encapsulated liquid crystal and method
US4702563A
(en)
*
1985-04-15
1987-10-27
Robert Parker
Battery tester including textile substrate
US4738549A
(en)
*
1986-04-03
1988-04-19
Plimpton R Gregory
Pool thermometer
US5058999A
(en)
*
1987-07-13
1991-10-22
Frederick Davis
Liquid crystal device having distinguishing means
US4952033A
(en)
*
1987-07-13
1990-08-28
James L. Fergason
Liquid crystal medical device
US5124819A
(en)
*
1987-07-13
1992-06-23
James L. Fergason
Liquid crystal medical device having distinguishing means
US5363516A
(en)
*
1993-10-04
1994-11-15
Becky Butts
Toilet training device for children
US7041941B2
(en)
*
1997-04-07
2006-05-09
Patented Medical Solutions, Llc
Medical item thermal treatment systems and method of monitoring medical items for compliance with prescribed requirements
US6467953B1
(en)
1999-03-30
2002-10-22
Medical Solutions, Inc.
Method and apparatus for monitoring temperature of intravenously delivered fluids and other medical items
US7276675B2
(en)
*
1997-04-07
2007-10-02
Patented Medical Solutions, Llc
Medical item thermal treatment systems and method of monitoring medical items for compliance with prescribed requirements
ES2146164B1
(en)
*
1998-04-28
2001-03-01
Promocrystal S L
ADVERTISING SUPPORT WITH DOUBLE SCALE OF TEMPERATURE INDICATION.
US6241386B1
(en)
1998-12-28
2001-06-05
Randy Martin Limburg
Decal with multiple concealing features that selectively display or conceal temperature sensors according to ambient temperature
US7238171B2
(en)
2001-03-12
2007-07-03
Medical Solutions, Inc.
Method and apparatus for controlling pressurized infusion and temperature of infused liquids
US6889388B1
(en)
2003-03-27
2005-05-10
Elias Barlia
Garment with liquid crystal thermometer
US7258073B2
(en)
*
2004-01-20
2007-08-21
Mcguire Katherine M
Pictorial thermometer
US9211381B2
(en)
2012-01-20
2015-12-15
Medical Solutions, Inc.
Method and apparatus for controlling temperature of medical liquids
US9656029B2
(en)
2013-02-15
2017-05-23
Medical Solutions, Inc.
Plural medical item warming system and method for warming a plurality of medical items to desired temperatures
US20210407473A1
(en)
*
2017-08-04
2021-12-30
Eventide Inc.
Musical Instrument Tuner
US11107447B2
(en)
*
2017-08-04
2021-08-31
Eventide Inc.
Musical instrument tuner
Family Cites Families (6)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
US1623666A
(en)
*
1926-08-10
1927-04-05
Karl A Ferkel
Temperature-indicating means
US3002385A
(en)
*
1960-02-12
1961-10-03
Pyrodyne Inc
Temperature indicator
US3441513A
(en)
*
1966-08-05
1969-04-29
Boeing Co
Liquid crystal compositions
US3440882A
(en)
*
1966-09-09
1969-04-29
Westinghouse Electric Corp
Thermometer
US3661142A
(en)
*
1970-02-05
1972-05-09
Johnson & Johnson
Temperature-sensing patch
US3704625A
(en)
*
1970-12-28
1972-12-05
Sankyo Keiryoki
Thermometer using liquid crystal compositions
1973
1973-04-16
US
US351220A
patent/US3861213A/en
not_active
Expired – Lifetime
1973-06-13
GB
GB2821973A
patent/GB1439161A/en
not_active
Expired
1973-06-13
DE
DE2330071A
patent/DE2330071C3/en
not_active
Expired
1973-06-13
JP
JP48065971A
patent/JPS529395B2/ja
not_active
Expired
1973-06-14
FR
FR7321760A
patent/FR2189729B3/fr
not_active
Expired
1973-06-14
IT
IT50798/73A
patent/IT976951B/en
active
1975
1975-10-03
JP
JP50119667A
patent/JPS51126188A/en
active
Granted
Cited By (3)
* Cited by examiner, † Cited by third party
Publication number
Priority date
Publication date
Assignee
Title
GB2118228A
(en)
*
1982-03-13
1983-10-26
Edward Raymond Stevens
Hazard warning device
GB2197109A
(en)
*
1986-09-17
1988-05-11
Liquid Crystal Devices Ltd
Laminated product incorporating thermochromic liquid crystal material
GB2197109B
(en)
*
1986-09-17
1990-09-12
Liquid Crystal Devices Ltd
Gb8721762.6roduct incorporating thermochromic liquid crystal material
Also Published As
Publication number
Publication date
DE2330071A1
(en)
1974-01-03
DE2330071C3
(en)
1978-03-30
JPS529395B2
(en)
1977-03-15
JPS569660B2
(en)
1981-03-03
IT976951B
(en)
1974-09-10
DE2330071B2
(en)
1977-08-11
FR2189729A1
(en)
1974-01-25
US3861213A
(en)
1975-01-21
JPS51126188A
(en)
1976-11-04
FR2189729B3
(en)
1976-06-04
JPS4952676A
(en)
1974-05-22
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Legal Events
Date
Code
Title
Description
1976-10-20
PS
Patent sealed [section 19, patents act 1949]
1982-01-20
PCNP
Patent ceased through non-payment of renewal fee
