Metal working – Method of mechanical manufacture – Electrical device making
Reexamination Certificate
2006-01-10
2006-01-10
Nguyen, Tran (Department: 2834)
Metal working
Method of mechanical manufacture
Electrical device making
C029S598000, C029S607000, C264S272200, C264S271100, C264S272190, C310S154080, C310S154120, C310S154170, C310S043000
Reexamination Certificate
active
06983529
ABSTRACT:
A stator assembly for an electric motor includes a stator housing, an expandable flux ring inserted into the stator housing and a plurality of magnets on an inner surface of the flux ring. Overmold material is molded around the magnets in the flux ring, such as by injection molding. The pressure of the overmold material as it is being molded expands the flux ring pressing the flux ring into engagement with the stator housing. The overmold material secures the magnets to the flux ring and the flux ring to the housing. One of the flux ring and stator housing has a dimple that engages a hole in the other of the flux ring and stator housing to align the flux ring and stator housing. In an aspect, the overmold material is molded to form at least one of a commutator end or rear bearing support, front bearing support and fan baffle. In an aspect, the overmold material is molded to form a keying feature. The keying feature can be slots of different widths between magnetic poles of the stator assembly. In an aspect, the flux ring and housing are preformed as a unit by stamping them from blanks and rolling them together. In a variation, the flux ring blank is rolled first to form the flux ring and the housing blank rolled around the flux ring with the flux ring acting as a rolling arbor.
REFERENCES:
patent: 787184 (1905-04-01), Jacobson
patent: 3258623 (1966-06-01), Phelon et al.
patent: 3296471 (1967-01-01), Cochardt
patent: 3390291 (1968-06-01), Eberline et al.
patent: 3422294 (1969-01-01), Parker
patent: 3436815 (1969-04-01), Sheets
patent: 3445692 (1969-05-01), Kato
patent: 3445693 (1969-05-01), Crawshaw et al.
patent: 3510707 (1970-05-01), Stone
patent: 3710291 (1973-01-01), Nicoud
patent: 3766418 (1973-10-01), Apostoleris
patent: 3789250 (1974-01-01), Macoit et al.
patent: 3887826 (1975-06-01), Apostoleris
patent: 4012651 (1977-03-01), Burson
patent: 4015154 (1977-03-01), Tanaka et al.
patent: 4155021 (1979-05-01), Corbach et al.
patent: 4159562 (1979-07-01), Liptak et al.
patent: 4209724 (1980-06-01), Periou
patent: 4219752 (1980-08-01), Katou
patent: 4260916 (1981-04-01), Theissig
patent: 4323806 (1982-04-01), Aoki
patent: 4383192 (1983-05-01), Sikorra
patent: 4453097 (1984-06-01), Lordo
patent: 4464595 (1984-08-01), Hamano et al.
patent: 4573258 (1986-03-01), Io et al.
patent: 4591749 (1986-05-01), Gauthier et al.
patent: 4594525 (1986-06-01), Stokes
patent: 4625392 (1986-12-01), Stokes
patent: 4665333 (1987-05-01), Heim et al.
patent: 4683393 (1987-07-01), Stokes
patent: 4724348 (1988-02-01), Stokes
patent: 4757603 (1988-07-01), Stokes
patent: 4769624 (1988-09-01), Merritt et al.
patent: 4777717 (1988-10-01), Okamoto
patent: 4792712 (1988-12-01), Stokes
patent: 4793054 (1988-12-01), Abbratozzato et al.
patent: 4795932 (1989-01-01), Long
patent: 4801834 (1989-01-01), Stokes
patent: 4827173 (1989-05-01), Corbach et al.
patent: 4850100 (1989-07-01), Stokes
patent: 4873461 (1989-10-01), Brennan et al.
patent: 4877986 (1989-10-01), Shimizu
patent: 4879485 (1989-11-01), Tassinario
patent: 4910861 (1990-03-01), Dohogne
patent: 4916344 (1990-04-01), Hammer et al.
patent: 4918801 (1990-04-01), Schwarz et al.
patent: 4953284 (1990-09-01), Hammer et al.
patent: 4954736 (1990-09-01), Kawamoto et al.
patent: 4973872 (1990-11-01), Dohogne
patent: 5038460 (1991-08-01), Ide et al.
patent: 5075605 (1991-12-01), Hendricks et al.
patent: 5121021 (1992-06-01), Ward
patent: 5264749 (1993-11-01), Maeda et al.
patent: 5268607 (1993-12-01), McManus
patent: 5341561 (1994-08-01), Schorm et al.
patent: 5353491 (1994-10-01), Gentry et al.
patent: 5475276 (1995-12-01), Shiga et al.
patent: 5500994 (1996-03-01), Itaya
patent: 5584114 (1996-12-01), McManus
patent: 5646467 (1997-07-01), Floresta et al.
patent: 5705970 (1998-01-01), Nishida et al.
patent: 5714827 (1998-02-01), Hansson
patent: 5731646 (1998-03-01), Heinze et al.
patent: 5806169 (1998-09-01), Trago et al.
patent: 5811908 (1998-09-01), Iwata et al.
patent: 5828152 (1998-10-01), Takeda et al.
patent: 5831364 (1998-11-01), Buse
patent: 5845389 (1998-12-01), Roberts et al.
patent: 5861695 (1999-01-01), Brassard
patent: 5874794 (1999-02-01), Trammell et al.
patent: 5942827 (1999-08-01), Neumann et al.
patent: 5960532 (1999-10-01), Hill
patent: 5998902 (1999-12-01), Sleder, Sr. et al.
patent: 6002185 (1999-12-01), Nakao et al.
patent: 6006416 (1999-12-01), Katagiri
patent: 6020661 (2000-02-01), Trago et al.
patent: 6058594 (2000-05-01), Neumann et al.
patent: 6060799 (2000-05-01), McManus et al.
patent: 6177751 (2001-01-01), Suzuki et al.
patent: 6191516 (2001-02-01), Froehlich et al.
patent: 6281612 (2001-08-01), Asao et al.
patent: 6522042 (2003-02-01), Du et al.
patent: 6 601 157 (1969-02-01), None
patent: 19 41 169 (1970-04-01), None
patent: 1 909 063 (1971-01-01), None
patent: 23 02 947 (1973-08-01), None
patent: 23 42 499 (1975-03-01), None
patent: 76 08 871 (1976-07-01), None
patent: 25 05 937 (1976-08-01), None
patent: 75 04 284 (1977-10-01), None
patent: 28 27 068 (1979-01-01), None
patent: 27 35 778 (1979-03-01), None
patent: 28 35 441 (1980-02-01), None
patent: 28 55 986 (1980-07-01), None
patent: 30 23 743 (1982-01-01), None
patent: 31 35 217 (1983-04-01), None
patent: 84 27 703 (1986-03-01), None
patent: 35 10 845 (1986-10-01), None
patent: 39 13 618 (1989-11-01), None
patent: 40 33 454 (1992-04-01), None
patent: 42 13 374 (1993-10-01), None
patent: 42 40 995 (1994-06-01), None
patent: 195 17 668 (1996-11-01), None
patent: 197 05 432 (1998-08-01), None
patent: 198 61 024 (1999-09-01), None
patent: 196 14 217 (2000-05-01), None
patent: 199 11 261 (2000-09-01), None
patent: 199 42 029 (2001-03-01), None
patent: 199 51 594 (2001-05-01), None
patent: 101 03 434 (2001-08-01), None
patent: 100 09 151 (2001-09-01), None
patent: 100 51 308 (2001-10-01), None
patent: 100 53 692 (2002-05-01), None
patent: 101 00 717 (2002-07-01), None
patent: 101 18 275 (2002-10-01), None
patent: 102 16 098 (2003-10-01), None
patent: 102 19 190 (2003-11-01), None
patent: 102 24 867 (2003-12-01), None
patent: 203 13 943 (2004-02-01), None
patent: 0 143 693 (1985-06-01), None
patent: 0 218 477 (1987-04-01), None
patent: 0 410 048 (1991-01-01), None
patent: 0 505 498 (1992-09-01), None
patent: 0 558 746 (1993-09-01), None
patent: 0 569 594 (1993-11-01), None
patent: 0 809 878 (1998-10-01), None
patent: 1 588 988 (1970-03-01), None
patent: 2 445 053 (1980-07-01), None
patent: 2 518 927 (1983-07-01), None
patent: 2 617 344 (1988-12-01), None
patent: 2617344 (1988-12-01), None
patent: 1 389 519 (1973-11-01), None
patent: 1 576 917 (1980-10-01), None
patent: 2202170 (1998-09-01), None
patent: 50-68807 (1975-06-01), None
patent: 54-164828 (1979-11-01), None
patent: 55-56476 (1980-04-01), None
patent: 64-64546 (1989-03-01), None
patent: 3-77247 (1991-08-01), None
patent: 3-265437 (1991-11-01), None
patent: 3-293943 (1991-12-01), None
patent: 09039027 (1997-02-01), None
patent: 10-256031 (1998-09-01), None
patent: 11-299147 (1999-10-01), None
patent: 2000-152535 (2000-05-01), None
patent: 2000-324733 (2000-11-01), None
patent: 2001-69703 (2001-03-01), None
patent: 2001-169485 (2001-06-01), None
patent: WO/97 05687 (1997-02-01), None
patent: WO 97/45917 (1997-12-01), None
patent: WO 01/56134 (2001-08-01), None
patent: WO 01/080400 (2001-10-01), None
Composite magnet holder simplifies motor assembly. Retrieved Nov. 26, 2001 from http://www.machinedesign.com/content/columns/articleloader.asp?main=sitesearch&origA.
European Search Report EP 1237252 A3.
International Search Report PCT/US02/05029, ISA/US—mailed Sep. 6, 2002.
Semones, Burley C., Application of high-energy permanent-magnet materials to servomotors, J. Appl. Phys. 57(1), Apr. 15, 1985, pp 3817-3819.
Agnes Michael J.
Du Hung
Ortt Earl M.
Black & Decker Inc.
Nguyen Tran
LandOfFree
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