(19)
(11) EP 0 921 630 B8

(12) CORRECTED EUROPEAN PATENT SPECIFICATION
Note: Bibliography reflects the latest situation

(15) Correction information:
Corrected version no 1 (W1 B1)

(48) Corrigendum issued on:
07.12.2005 Bulletin 2005/49

(45) Mention of the grant of the patent:
12.10.2005 Bulletin 2005/41

(21) Application number: 98650057.7

(22) Date of filing: 31.08.1998
(51) International Patent Classification (IPC)7: H02P 6/08

(54)

Systems and methods for torque control of actuator and brushless DC motor therein

System und Verfahren zur Drehmomentregelung eines Stellantriebs mit bürstenlosem Motor

Système et méthode pour régulation de couple d'un actionneur avec un moteur sans balai

(84) Designated Contracting States:
CH DE GB IT LI

(30) Priority: 28.08.1997 US 920052

(43) Date of publication of application:
09.06.1999 Bulletin 1999/23

(73) Proprietor: Invensys Building Systems, Inc.
Rockford, IL 61111 (US)

(72) Inventor:
  • Hill, Michael L.
    Illinois 61072 (US)

(74) Representative: Casey, Lindsay Joseph et al
F. R. Kelly & Co. 27 Clyde Road Ballsbridge
Dublin 4
Dublin 4 (IE)


(56) References cited: : 
EP-A- 0 396 088
WO-A-95/13650
US-A- 5 003 455
 EP-A- 0 714 162
US-A- 4 868 467
   
  • PATENT ABSTRACTS OF JAPAN vol. 017, no. 230 (E-1361), 11 May 1993 & JP 04 359688 A (ASAHI OPTICAL CO LTD), 11 December 1992
  • PATENT ABSTRACTS OF JAPAN vol. 010, no. 168 (E-411), 14 June 1986 & JP 61 018387 A (FUJI DENKI SEIZO KK), 27 January 1986
   
Note: Within nine months from the publication of the mention of the grant of the European patent, any person may give notice to the European Patent Office of opposition to the European patent granted. Notice of opposition shall be filed in a written reasoned statement. It shall not be deemed to have been filed until the opposition fee has been paid. (Art. 99(1) European Patent Convention).