Abrading – Abrading process – Abradant supplying
Reexamination Certificate
2005-10-18
2005-10-18
Hail, III, Joseph J. (Department: 3723)
Abrading
Abrading process
Abradant supplying
C451S005000, C451S008000, C451S036000, C451S038000, C451S087000, C451S091000, C451S093000, C451S101000, C451S102000, C137S909000
Reexamination Certificate
active
06955589
ABSTRACT:
A magnetorheological fluid delivery system includes a mixing and tempering vessel. Fluid is admitted to the vessel via a plurality of tangential ports, creating a mixing of the fluid in the vessel and promoting homogeneity. Fluid may be reconstituted in the vessel by metered addition of carrier fluid. A fixed-speed centrifugal pump disposed in the vessel pressurizes the system. Fluid is pumped through a magnetic-induction flowmeter and a magnetic flow control valve having solenoid windings whereby MR fluid is magnetically stiffened to restrict flow. A closed-loop feedback control system connects the output of the flowmeter to performance of the valve. A nozzle having a slot-shaped bore dispenses MR fluid for re-use in the work zone. A planar-diaphragm flush-mounted pressure transducer at the entrance to the nozzle and flowmeter inferentially measure relaxed viscosity and provide signals to a computer for dispensing metered amounts of carrier fluid into the mixing vessel to assure correct composition of the reconstituted fluid as it is dispensed.
REFERENCES:
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patent: 5922131 (1999-07-01), Haas
patent: 5951369 (1999-09-01), Kordonski et al.
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patent: 6106380 (2000-08-01), Jacobs et al.
patent: 6158470 (2000-12-01), Ivers et al.
Carapella Jerry
Hogan Stephen
Kordonski William
Brown Robert C.
Hail III Joseph J.
McDonald Shantese L.
QED Technologies, Inc.
Slifkin Neal L.
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