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1. (WO1998050780) METHOD AND APPARATUS FOR MATCHING REFRIGERANTS
Latest bibliographic data on file with the International Bureau

Pub. No.: WO/1998/050780 International Application No.: PCT/GB1998/001287
Publication Date: 12.11.1998 International Filing Date: 01.05.1998
Chapter 2 Demand Filed: 22.10.1998
IPC:
B60H 1/00 (2006.01) ,G01N 21/35 (2006.01) ,G01N 33/28 (2006.01)
B PERFORMING OPERATIONS; TRANSPORTING
60
VEHICLES IN GENERAL
H
ARRANGEMENTS OR ADAPTATIONS OF HEATING, COOLING, VENTILATING, OR OTHER AIR-TREATING DEVICES SPECIALLY FOR PASSENGER OR GOODS SPACES OF VEHICLES
1
Heating, cooling or ventilating devices
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
21
Investigating or analysing materials by the use of optical means, i.e. using infra-red, visible, or ultra-violet light
17
Systems in which incident light is modified in accordance with the properties of the material investigated
25
Colour; Spectral properties, i.e. comparison of effect of material on the light at two or more different wavelengths or wavelength bands
31
Investigating relative effect of material at wavelengths characteristic of specific elements or molecules, e.g. atomic absorption spectrometry
35
using infra-red light
G PHYSICS
01
MEASURING; TESTING
N
INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
33
Investigating or analysing materials by specific methods not covered by groups G01N1/-G01N31/131
26
Oils; viscous liquids; paints; inks
28
Oils
Applicants:
SNAP-ON EQUIPMENT LIMITED [GB/GB]; Unit 12 Horsleys Fields King's Lynn Norfolk PE30 5DD, GB
Inventors:
JONES, Barbara, Lynn; GB
SMITH, Paul; GB
DAVIS, Stephen, John; GB
Agent:
ARCHER, Philip, Bruce; Urquhart-Dykes & Lord New Priestgate House 57 Priestgate Peterborough Cambs, PE1 1JX, GB
Priority Data:
9708778.701.05.1997GB
Title (EN) METHOD AND APPARATUS FOR MATCHING REFRIGERANTS
(FR) PROCEDE ET APPAREIL D'ADAPTATION DE FLUIDES FRIGORIGENES
Abstract:
(EN) Method and apparatus for freon and other refrigerant matching, particularly for servicing of air conditioning systems for automotive applications. The matching process is based upon the comparison of resistance or infrared absorption or other data readings of a gas-sensing resistance or infrared absorption or other transducer applied to the refrigerant fluid under test and corresponding data from reference refrigerants.
(FR) L'invention concerne un procédé et un appareil d'adaptation d'hydrocarbures halogénés et d'autres fluides frigorigènes, notamment pour l'entretien d'installations de conditionnement d'air dans des applications automobiles. Le procédé d'adaptation se base sur la comparaison de résistance ou l'absorption dans l'infrarouge ou d'autres lectures de données d'une résistance de détection de gaz ou d'une absorption dans l'infrarouge d'un autre transducteur appliqués au fluide frigorigène à l'essai et à l'adaptation de données provenant de fluides frigorigènes de référence.
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Designated States: AU, CA, CN, JP, KR, MX
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
Publication Language: English (EN)
Filing Language: English (EN)
Also published as:
MXPA/a/1999/010019KR1020010012151EP1015870US6018983JP2001522465 CN1259206
CA2287985DE000069809948GB2324868AU1998072250