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1. (WO2001006574) MULTI-WIRE SELF-DIAGNOSTIC THERMOCOUPLE
Latest bibliographic data on file with the International Bureau   

Pub. No.: WO/2001/006574 International Application No.: PCT/US2000/017665
Publication Date: 25.01.2001 International Filing Date: 26.06.2000
Chapter 2 Demand Filed: 12.02.2001
IPC:
G01K 15/00 (2006.01)
G PHYSICS
01
MEASURING; TESTING
K
MEASURING TEMPERATURE; MEASURING QUANTITY OF HEAT; THERMALLY-SENSITIVE ELEMENTS NOT OTHERWISE PROVIDED FOR
15
Testing or calibrating of thermometers
Applicants: HALL, Bertie, Forrest, Jr.[US/US]; US (UsOnly)
HOSKINS MANUFACTURING COMPANY[US/US]; 39500 Highpoint Boulevard, Suite 30 Novi, MI 48375, US (AllExceptUS)
Inventors: HALL, Bertie, Forrest, Jr.; US
Agent: ABBATT, William, G. ; Brooks & Kushman 22nd floor 1000 Town Center Southfield, MI 48075, US
Priority Data:
09/356,85019.07.1999US
Title (EN) MULTI-WIRE SELF-DIAGNOSTIC THERMOCOUPLE
(FR) THERMOCOUPLE A FILS MULTIPLES ET A AUTO-DIAGNOSTIC
Abstract:
(EN) A self-diagnostic thermocouple (10) having a first (12), a second (14) and a reference (16) thermoelement enclosed in a sheath (20) filled with an insulator (18) separating the thermoelectric elements from each other and the sheath. The three thermoelements (12, 14, 16) are joined at a common location to form three separate thermocouple junctions (22) having three distinct electrical outputs as a function of temperature. The reference thermoelement (16) is made from a pure metal or alloy which has stable thermoelectric characteristics. Deterioration of the electrical output of the self-diagnostic thermocouple (10) is capable of being detected by a programmed microprocessor (100).
(FR) Thermocouple (10) à auto-diagnostic qui possède un premier (12) thermoélément, un deuxième (14) thermoélément et un thermoélément de référence (16) enfermés dans une gaine (20) remplie d'une matière isolante (18) qui sépare les éléments thermoélectriques les uns des autres ainsi que de la gaine. Les trois thermoéléments (12, 14, 16) se rejoignent en un site commun pour former trois jonctions (22) séparées de thermocouple ayant trois sorties électriques distinctes en fonction de la température. Le thermoélément de référence (16) est constitué d'un métal pur ou d'un alliage qui possède des caractéristiques thermoélectriques stables. Un microprocesseur programmé (100) est en mesure de détecter la détérioration de la sortie électrique du thermocouple (10) à auto-diagnostic.
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Designated States: AE, AG, AL, AM, AT, AU, AZ, BA, BB, BG, BR, BY, BZ, CA, CH, CN, CR, CU, CZ, DE, DK, DM, DZ, EE, ES, FI, GB, GD, GE, GH, GM, HR, HU, ID, IL, IN, IS, JP, KE, KG, KP, KR, KZ, LC, LK, LR, LS, LT, LU, LV, MA, MD, MG, MK, MN, MW, MX, MZ, NO, NZ, PL, PT, RO, RU, SD, SE, SG, SI, SK, SL, TJ, TM, TR, TT, TZ, UA, UG, US, UZ, VN, YU, ZA, ZW
African Regional Intellectual Property Organization (ARIPO) (GH, GM, KE, LS, MW, MZ, SD, SL, SZ, TZ, UG, ZW)
Eurasian Patent Office (AM, AZ, BY, KG, KZ, MD, RU, TJ, TM)
European Patent Office (EPO) (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE)
African Intellectual Property Organization (BF, BJ, CF, CG, CI, CM, GA, GN, GW, ML, MR, NE, SN, TD, TG)
Publication Language: English (EN)
Filing Language: English (EN)