Linear motor

Details Linear motor Linear motor

2004-03-05

2008-05-27

Hanh, Nguyen N (Department: 2834)

Electrical generator or motor structure

Dynamoelectric

Linear

Reexamination Certificate

active

07378763

ABSTRACT:
A linear motor comprising a stator core and/or a mover. The stator core of said linear motor comprising an inner perimeter, an outer perimeter essentially encircling the inner perimeter, a first and a second tooth being arranged along one of the inner perimeter or the outer perimeter, a slot for receiving a stator coil, said slot being a cavity arranged within the stator core, wherein said stator core is divided into a first stator part and a second stator part, said first stator part including the first tooth, being arranged to partially define the slot, and being made of soft magnetic powder, and said second stator part including the second tooth, being arranged to partially define the slot, and being made of soft magnetic powder. The mover of said linear motor comprising at least one section of soft magnetic material and at least one permanent magnet, the at least one section of soft magnetic material and the at least one permanent magnet being aligned in an axial direction of the mover, wherein a polarization vector of said at least one permanent magnet is directed axially.

REFERENCES:
patent: 276274 (1883-04-01), Peck et al.
patent: 3504320 (1970-03-01), Engdahl et al.
patent: 4067667 (1978-01-01), White
patent: 4210831 (1980-07-01), Hurst
patent: 4454426 (1984-06-01), Benson
patent: 4761960 (1988-08-01), Higham et al.
patent: 4924675 (1990-05-01), Higham et al.
patent: 5691582 (1997-11-01), Lucas et al.
patent: 6060810 (2000-05-01), Lee et al.
patent: 6289575 (2001-09-01), Hollingsworth et al.
patent: 6380832 (2002-04-01), Oyama et al.
patent: 6603224 (2003-08-01), Hollingsworth et al.
patent: 6628018 (2003-09-01), Song et al.
patent: 6651309 (2003-11-01), Gay et al.
patent: 6755627 (2004-06-01), Chang
patent: 6784782 (2004-08-01), Inoue et al.
patent: 6809434 (2004-10-01), Duncan et al.
patent: 6849970 (2005-02-01), Watanabe
patent: 6856051 (2005-02-01), Reiter et al.
patent: 6914351 (2005-07-01), Chertok
patent: 2001/0042983 (2001-11-01), Kinoshita
patent: 2003/0160521 (2003-08-01), Park et al.
patent: 2005/0006971 (2005-01-01), Lindberg et al.
patent: 2006/0108878 (2006-05-01), Lindberg et al.
patent: 0 915 553 (1999-05-01), None
patent: 2 299 715 (1996-10-01), None
patent: 2002-291220 (2002-10-01), None
patent: WO 99/18649 (1999-04-01), None
patent: WO 00/69047 (2000-11-01), None
Popescu et al. “Magnetic Materials in Design and Construction of Electrical Motors”, Electrotechnical Conference, 1998. MELECON 98., 9th Mediterranean, vol. 1, pp. 125-128, May 1998.
Z & D Limited web page (www.z-d.co.uk) ; Registration Certificate for Domain Name; pp. 1-11, no date provided.
Miscellaneous Documents (9 pages), a 2 page facsimile dated Feb. 25, 1999, a drawing dated May 8, 1999, a purchase order dated May 10, 1999, a packing list with a shipping date of Jun. 10, 1999 and an invoice Aug. 6, 1999, and an e-mail dated May 16, 2007.

Affiliated with

Also associated with

Rating

Linear motor does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Linear motor, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Linear motor will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-3982926