Closure fasteners – Magnetic
Reexamination Certificate
2006-01-04
2010-02-02
Estremsky, Gary (Department: 3677)
Closure fasteners
Magnetic
C292SDIG069, C134S0570DL, C134S0580DL
Reexamination Certificate
active
07654590
ABSTRACT:
An electrically operable door latch employs a permanent magnet for retaining an appliance door closed against the force of a resilient seal. An electromagnet bucks the magnetic attraction of the permanent magnet allowing the latch to be electronically releasable. A simple mechanism and inherent force limits are obtained by a direct magnetic attraction between a strike plate and the latch, one on the door and one on the housing.
REFERENCES:
patent: 2471635 (1949-05-01), Mark et al.
patent: RE23636 (1953-03-01), Mark
patent: 2871676 (1959-02-01), Miller et al.
patent: 2891560 (1959-06-01), Ullman, Jr. et al.
patent: 3647165 (1972-03-01), Whitla
patent: 3985023 (1976-10-01), Guth
patent: 4951693 (1990-08-01), Archambault
patent: 5293020 (1994-03-01), Han et al.
patent: RE35268 (1996-06-01), Frolov et al.
patent: 5881746 (1999-03-01), Buser et al.
patent: 6489871 (2002-12-01), Barton
patent: 6609738 (2003-08-01), Roth et al.
patent: 6740834 (2004-05-01), Sueyoshi et al.
patent: 6811236 (2004-11-01), Spong et al.
patent: 2004/0031660 (2004-02-01), Kliemannel
patent: 2004/0163684 (2004-08-01), Hapke
patent: 1 605 332 (2005-12-01), None
patent: WO 01/92981 (2001-12-01), None
Boyle Fredrickson , S.C.
Estremsky Gary
Illinois Tool Works Inc.
LandOfFree
Magnetic appliance latch does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Magnetic appliance latch, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Magnetic appliance latch will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4182438