Electrical generator or motor structure – Dynamoelectric – Rotary
Reexamination Certificate
2007-07-03
2007-07-03
Lam, Thanh (Department: 2834)
Electrical generator or motor structure
Dynamoelectric
Rotary
C310S216006, C310S254100, C310S261100
Reexamination Certificate
active
11367470
ABSTRACT:
A rotor-stator structure for electrodynamic machinery is disclosed to, among other things, minimize magnetic flux path lengths and to eliminate back-iron for increasing torque and/or efficiency per unit size (or unit weight) and for reducing manufacturing costs. In one embodiment, an exemplary rotor-stator structure can comprise a shaft defining an axis of rotation, and a rotor on which at least two substantially conical magnets are mounted on the shaft. The magnets include conical magnetic surfaces facing each other and confronting air gaps. In some embodiments, substantially straight field pole members can be arranged coaxially and have flux interaction surfaces formed at both ends of those field poles. Those surfaces are located adjacent to the confronting conical magnetic surfaces to define functioning air gaps. Current in coils wound on the field poles provide selectable magnetic fields that interact with magnet flux in flux interaction regions to provide torque to the shaft.
REFERENCES:
patent: 414659 (1889-11-01), Seafert
patent: 422862 (1890-03-01), Washburn
patent: 439102 (1890-10-01), Bradley
patent: 754066 (1904-03-01), Hoffman
patent: 829975 (1906-09-01), Lincoln
patent: 846079 (1907-03-01), Yost
patent: 1039197 (1912-09-01), Roth
patent: 1557213 (1925-10-01), Lee
patent: 1640742 (1927-08-01), Wallace
patent: 1763104 (1930-06-01), Shurtleff
patent: 1771281 (1930-07-01), Wilsing
patent: 1874094 (1932-08-01), Ford
patent: 1962832 (1934-06-01), Neureuther
patent: 2025560 (1935-12-01), Warren
patent: 2081993 (1937-06-01), Gebhardt
patent: 2141681 (1938-12-01), Brueck
patent: 2378668 (1945-06-01), Vickers
patent: 2480825 (1949-09-01), Adolsh
patent: 2484001 (1949-10-01), Raymond
patent: 2500730 (1950-03-01), Yonkers
patent: 2561890 (1951-07-01), Stoddard
patent: 2575153 (1951-11-01), Wightman
patent: 2669687 (1954-02-01), De Tastes
patent: 2677256 (1954-05-01), Donandt
patent: 2677259 (1954-05-01), Woodward
patent: 2694781 (1954-11-01), Hinz
patent: 2717969 (1955-09-01), Buchhold
patent: 2769106 (1956-10-01), Dembowski
patent: 2796542 (1957-06-01), Bekey
patent: 2802959 (1957-08-01), Powers
patent: 2824272 (1958-02-01), Delaporte
patent: 3001093 (1961-09-01), Wilcox
patent: 3025445 (1962-03-01), Welch
patent: 3153157 (1964-10-01), Rabe
patent: 3173042 (1965-03-01), Fodor
patent: 3175111 (1965-03-01), Orr
patent: 3205384 (1965-09-01), Sears
patent: 3223866 (1965-12-01), Tiltins
patent: 3241111 (1966-03-01), Sandstrom
patent: 3241304 (1966-03-01), Mattingly
patent: 3309547 (1967-03-01), Woodward
patent: 3319100 (1967-05-01), Erickson
patent: 3321652 (1967-05-01), Opel
patent: 3356425 (1967-12-01), Carrierre
patent: 3360667 (1967-12-01), Gordon
patent: 3374376 (1968-03-01), Kromrey
patent: 3396291 (1968-08-01), Somerville
patent: 3399002 (1968-08-01), Atkinson
patent: 3428837 (1969-02-01), Morreale
patent: 3471729 (1969-10-01), Latta
patent: 3490816 (1970-01-01), Lyman
patent: 3519859 (1970-07-01), Morreale
patent: 3565495 (1971-02-01), Lyman
patent: 3603826 (1971-09-01), Saretzky
patent: 3619014 (1971-11-01), Quick
patent: 3648090 (1972-03-01), Voin
patent: 3651355 (1972-03-01), Mason
patent: 3689787 (1972-09-01), Saretzky
patent: 3717780 (1973-02-01), Hohne
patent: 3723796 (1973-03-01), Mason
patent: 3787100 (1974-01-01), Habermann
patent: 3822768 (1974-07-01), Sebulke
patent: 3863084 (1975-01-01), Hasebe
patent: 3936680 (1976-02-01), Kuwako
patent: 4031421 (1977-06-01), Geiger
patent: 4043614 (1977-08-01), Lyman
patent: 4045696 (1977-08-01), Lutz
patent: 4047807 (1977-09-01), Okano
patent: 4066922 (1978-01-01), Hennemann
patent: 4080724 (1978-03-01), Gillette
patent: 4117359 (1978-09-01), Wehde
patent: 4152570 (1979-05-01), Inoue
patent: 4156817 (1979-05-01), Preece
patent: D256351 (1980-08-01), Schulze
patent: 4221984 (1980-09-01), Mason
patent: 4259603 (1981-03-01), Uchiyama
patent: 4310768 (1982-01-01), Colley
patent: 4328411 (1982-05-01), Haller
patent: 4358693 (1982-11-01), Palmer
patent: 4378146 (1983-03-01), Suzuki
patent: 4390262 (1983-06-01), Hirohata
patent: 4395815 (1983-08-01), Stanley
patent: 4460253 (1984-07-01), Kawai
patent: 4476395 (1984-10-01), Cronin
patent: 4480208 (1984-10-01), Logie
patent: 4483570 (1984-11-01), Inoue
patent: 4491401 (1985-01-01), Inaba
patent: 4503349 (1985-03-01), Miller
patent: 4543506 (1985-09-01), Kawada
patent: 4564775 (1986-01-01), Mazzorana
patent: 4577129 (1986-03-01), Bertram
patent: 4593222 (1986-06-01), Burkel
patent: 4594539 (1986-06-01), Michelson
patent: 4601564 (1986-07-01), Yamamoto
patent: 4628220 (1986-12-01), Flogvall
patent: 4658228 (1987-04-01), Leupold
patent: 4663581 (1987-05-01), Glennon
patent: 4674178 (1987-06-01), Patel
patent: 4713569 (1987-12-01), Schwartz
patent: 4731626 (1988-03-01), Kawamoto
patent: 4734604 (1988-03-01), Sontheimer
patent: 4748359 (1988-05-01), Yahara
patent: 4748361 (1988-05-01), Ohmishi et al.
patent: 4757224 (1988-07-01), McGee
patent: 4759186 (1988-07-01), Sugden
patent: 4760314 (1988-07-01), Mohri
patent: 4763150 (1988-08-01), Sumi
patent: 4777397 (1988-10-01), Parshall
patent: 4788369 (1988-11-01), Marsh
patent: 4788465 (1988-11-01), Hertrich
patent: 4802347 (1989-02-01), Nystuen
patent: 4879484 (1989-11-01), Huss
patent: 4883996 (1989-11-01), Aoki
patent: 4885489 (1989-12-01), Stuhr
patent: 4918802 (1990-04-01), Schaefer
patent: 4920295 (1990-04-01), Holden
patent: 4939397 (1990-07-01), Morrill
patent: 4956571 (1990-09-01), Gordon
patent: 4962583 (1990-10-01), Yang
patent: 4983870 (1991-01-01), McSparran
patent: 4984972 (1991-01-01), Clausen
patent: 5033265 (1991-07-01), Sugden
patent: 5036235 (1991-07-01), Kleckner
patent: 5045741 (1991-09-01), Dvorsky
patent: 5047682 (1991-09-01), Burgbacher
patent: 5049771 (1991-09-01), Challita
patent: 5081387 (1992-01-01), Nystuen
patent: 5130592 (1992-07-01), Bitsch
patent: 5140212 (1992-08-01), Iwasaki
patent: 5212418 (1993-05-01), Mason
patent: 5216308 (1993-06-01), Meeks
patent: 5233254 (1993-08-01), Fisher
patent: 5258677 (1993-11-01), Mason
patent: 5283492 (1994-02-01), Mason
patent: 5300848 (1994-04-01), Huss
patent: 5406157 (1995-04-01), New
patent: 5436518 (1995-07-01), Kawai
patent: 5486730 (1996-01-01), Ludwig
patent: 5514924 (1996-05-01), McMullen
patent: 5610460 (1997-03-01), Jacobsen
patent: 5627419 (1997-05-01), Miller
patent: 5674169 (1997-10-01), Yang
patent: 5744887 (1998-04-01), Itoh
patent: 5751086 (1998-05-01), Taghezout
patent: 5767597 (1998-06-01), Gondhalekar
patent: 5777421 (1998-07-01), Woodward
patent: 5780950 (1998-07-01), Yang
patent: 5844345 (1998-12-01), Hsu
patent: 5955806 (1999-09-01), Devenyi
patent: 5962948 (1999-10-01), Hakala
patent: 6013693 (2000-01-01), Takahashi
patent: 6025769 (2000-02-01), Chu
patent: 6049148 (2000-04-01), Nichols
patent: 6057613 (2000-05-01), Trago
patent: 6104115 (2000-08-01), Offringa
patent: 6157109 (2000-12-01), Schiferl
patent: 6194797 (2001-02-01), Simon
patent: 6236124 (2001-05-01), Sekiyama
patent: 6246146 (2001-06-01), Schiller
patent: 6346755 (2002-02-01), Tong
patent: 6359357 (2002-03-01), Blumenstock
patent: 6455975 (2002-09-01), Raad
patent: 6492753 (2002-12-01), Zepp
patent: 6700280 (2004-03-01), Geiger
patent: 6720688 (2004-04-01), Schiller
patent: 2004/0119371 (2004-06-01), Laing
patent: 2006/0028093 (2006-02-01), Minagawa et al.
patent: 400323 (1966-04-01), None
patent: 2433809 (1978-02-01), None
patent: 37 42 502 (1989-06-01), None
patent: 199 54 196 (2000-06-01), None
patent: 101 40 362 (2003-03-01), None
patent: 0208124 (1987-01-01), None
patent: 0251350 (1988-01-01), None
patent: 960879 (1964-06-01), None
patent: 60066658 (1985-04-01), None
patent: 04-026350 (1992-01-01), None
patent: 06-014521 (1994-01-01), None
patent: 06-141527 (1994-05-01), None
patent: 06-351212 (1994-12-01), None
patent: 08-080019 (1996-03-01), None
patent: 10-174399 (1998-06-01), None
patent: 10-174400 (1998-06-01), None
patent: WO 00/48297 (2000-08-01), None
Petro John Patrick
Wasson Ken George
Cooley Godward Kronish LLP
Lam Thanh
NovaTorque, Inc.
LandOfFree
Rotor-stator structure for electrodynamic machines does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Rotor-stator structure for electrodynamic machines, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Rotor-stator structure for electrodynamic machines will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-3733396