Compositions – Magnetic – Flaw detection or magnetic clutch
Patent
1995-10-18
1999-05-04
Bonner, Melissa
Compositions
Magnetic
Flaw detection or magnetic clutch
188267, 26714014, 26714015, C09K 1508, C11D 750, C11D 726
Patent
active
059001844
ABSTRACT:
A magnetorheological fluid that includes a carrier component and a magnetizable particle component wherein the magnetizable particle component has a fractional packing density of at least 0.50 prior to formulation into the magnetorheological fluid. Use of this magnetorheological fluid can increase the force output of a magnetorheological device without increasing the viscosity of the fluid because the particle volume concentration in a working gap of the device increases when a magnetic field is applied.
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patent: 2772761 (1956-12-01), Janson
patent: 4992190 (1991-02-01), Shtarkman
patent: 5167850 (1992-12-01), Shtarkman
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patent: 5382373 (1995-01-01), Carlson et al.
patent: 5525249 (1996-06-01), Kordonsky et al.
Rabinow, Jacob, "The Magnetic Fluid Clutch", AIEE Transaction, vol. 67, pp. 1308-1315 (1948) no month.
German, Randall M., "Particle Packing Characteristics", Metal Powder Industries Federation (1989) no month pp. 6-14 & 135-163.
Carlson J. David
Nixon Donald A.
Weiss Keith D.
Bonner Melissa
Lord Corporation
Rupert Wayne W.
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