Electricity: motor control systems – Open loop speed control system for dc motor with commutator – Field control – or field and armature control
Reexamination Certificate
2004-06-25
2009-02-10
Leykin, Rita (Department: 2837)
Electricity: motor control systems
Open loop speed control system for dc motor with commutator
Field control, or field and armature control
C388S825000, C388S828000, C451S006000, C451S008000, C451S041000, C081S487000
Reexamination Certificate
active
07489856
ABSTRACT:
Electrically powered devices are provided that are generally capable of automatically adjusting an operating speed of a tool removably connected to the device. The device includes circuitry that evaluates tool wear for the tool removably connected to the device, produces a tool wear speed related signal, and adjusts the operating speed of the tool based on the speed related signal. The device may further be capable of automatically setting the initial operating speed of the particular tool removably connected to the device by identifying the particular tool and setting the initial operating speed which may later be adjusted.
REFERENCES:
patent: 3634664 (1972-01-01), Valek
patent: 3784798 (1974-01-01), Beadle et al.
patent: 4031368 (1977-06-01), Colding et al.
patent: 4207567 (1980-06-01), Juengel et al.
patent: 4391066 (1983-07-01), Munekata et al.
patent: 4514797 (1985-04-01), Begin
patent: 4720907 (1988-01-01), Rapp
patent: 4722405 (1988-02-01), Langford, Jr.
patent: 4742470 (1988-05-01), Juengel
patent: 4745557 (1988-05-01), Pekar et al.
patent: RE32837 (1989-01-01), Corni
patent: 4809426 (1989-03-01), Takeuchi et al.
patent: 4820962 (1989-04-01), Millauer
patent: 4900252 (1990-02-01), Liefke et al.
patent: 4926950 (1990-05-01), Zijsling
patent: 5076102 (1991-12-01), Sato et al.
patent: 5208761 (1993-05-01), Michigami et al.
patent: 5354961 (1994-10-01), Diot et al.
patent: 5458527 (1995-10-01), Kondo et al.
patent: 5871391 (1999-02-01), Pryor
patent: 6060859 (2000-05-01), Jonokuchi
patent: 6151055 (2000-11-01), Ackley et al.
patent: 6320286 (2001-11-01), Ramarathnam
patent: 6360136 (2002-03-01), Lamers
patent: 6568593 (2003-05-01), Hetzer
patent: 6633379 (2003-10-01), Roesner et al.
patent: 2002/0037681 (2002-03-01), Gitis et al.
patent: 2002/0108474 (2002-08-01), Adams
patent: 2002/0186370 (2002-12-01), Roesner et al.
patent: 2003/0073382 (2003-04-01), Manor
patent: 3518902 (1986-11-01), None
patent: WO 94/02284 (1994-02-01), None
patent: WO 03/084047 (2003-10-01), None
Christophe Basso: “Conducted EMI Filter Design for the NCP1200”, ON Semiconductor, Apr. 2001—Rev.2 (16 pages).
Libor Prokop et al. “Sensorless BLDC Motor Control on MC68HC908MR32 Software Description” Motorola, Inc., 2002 (67 pages).
Laszlo Balogh: “Unitrode—UC3854A/B and UC3855A/B Provide Power Limiting With Sinusoidal Input Current for PFC Front Ends” SLUA196A—Jun. 1995—Revised Nov. 2001 (15 pages).
Office Action dated May 23, 2008 in European Patent Application No. 05 762 817.4-2007.
Bauer, Esq. Robert M.
Leykin Rita
MacDonald Illig Jones & Britton LLP
Nokia Corporation
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