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Machine translation
1. (WO2002029833) A MAGNETO SENSITIVE FLUID COMPOSITION AND A PROCESS FOR PREPARATION THEREOF
Latest bibliographic data on file with the International Bureau   

Pub. No.:    WO/2002/029833    International Application No.:    PCT/IN2001/000168
Publication Date: 11.04.2002 International Filing Date: 03.10.2001
IPC:
H01F 1/44 (2006.01)
Applicants: THE ADVISER - DEFENCE RESEARCH & DEVELOPMENT ORGANISATION [IN/IN]; Ministry of Defence, Government of India B-148, Sena Bhawan DHQ P.O. New Delhi 110 011 (IN) (For All Designated States Except US).
JOHN, Reji [IN/IN]; (IN) (For US Only).
PILLAI, Narayana, Das, Janardhan [IN/IN]; (IN) (For US Only)
Inventors: JOHN, Reji; (IN).
PILLAI, Narayana, Das, Janardhan; (IN)
Agent: BANERJEE, Sudipta; L.S. Davar & Co. Monalisa Flats 1B & 1C 17 Camac Street Calcutta 700 017 (IN)
Priority Data:
892/DEL/2000 06.10.2000 IN
Title (EN) A MAGNETO SENSITIVE FLUID COMPOSITION AND A PROCESS FOR PREPARATION THEREOF
(FR) COMPOSITION FLUIDIQUE MAGNETO-SENSIBLE ET PROCEDE DE PREPARATION ASSOCIE
Abstract: front page image
(EN)The present invention relates to a magneto sensitive fluid composition and a process for preparation thereof, wherein the electrical conductivity of the composition varies drastically and reversibly in the presence of an external magnetic field. The composition, which is practically an insulator, starts behaving as a conductor in the presence of a magnetic field. The fluid is basically a magnetorheological composition in which the magnetic sensitive particles are doped with conductive dopants in the form of conductive metallic or non-metallic powder. The change in electrical conductivity of the composition is in addition to the change in rheological characteristics of the composition in the presence of an external magnetic field.
(FR)L"invention concerne une composition magnéto-sensible et un procédé de préparation associé, la conductivité électrique de la composition variant de façon drastique et réversible en présence d"un champ magnétique externe. La composition, qui est pratiquement un isolateur, commence à se comporter comme un conducteur en présence d"un champ magnétique. Le fluide est, à la base, une composition magnétorhéologique dans laquelle les particules magnétiques sensibles sont dopées au moyen de dopants conducteurs sous forme de poudre conductrice métallique ou non métallique. Le changement dans la conductivité électrique de la composition est ajouté au changement dans des caractéristiques rhéologiques de la composition en présence d"un champ magnétique externe.
Designated States: JP, US.
European Patent Office (AT, BE, CH, CY, DE, DK, ES, FI, FR, GB, GR, IE, IT, LU, MC, NL, PT, SE, TR).
Publication Language: English (EN)
Filing Language: English (EN)