Sealing device and rotation detector

Details Sealing device and rotation detector Sealing device and rotation detector

2011-01-18

2011-01-18

Mai, Anh T (Department: 2832)

Electricity: magnetically operated switches, magnets, and electr

Magnets and electromagnets

Magnet structure or material

C324S174000

Reexamination Certificate

active

07872554

ABSTRACT:
A pulser ring and a second seal ring are separately formed. When a multipolar magnetic rotor of the pulser ring is bonded to an outer circumferential face of an outer cylindrical portion of an annular core portion, the multipolar magnetic rotor is opposed to a magnetic sensor in the radial direction. Due to the above structure, the multipolar magnetic rotor can be strongly supported by an outer cylindrical portion of the annular core portion. Therefore, even when a rotary centrifugal force is given to the multipolar magnetic rotor, it can not be swung in the radial direction. Accordingly, an interval of the multipolar magnetic rotor and the magnetic sensor in the radial direction, which are opposed to each other, can be maintained constant irrespective of an intensity of the centrifugal force.

REFERENCES:
patent: 3619680 (1971-11-01), Okamoto
patent: 3719841 (1973-03-01), Ritsema
patent: 5261752 (1993-11-01), Ouchi et al.
patent: 5407213 (1995-04-01), Ouchi et al.
patent: 5570013 (1996-10-01), Polinsky et al.
patent: 5594334 (1997-01-01), Sonnerat et al.
patent: 5852361 (1998-12-01), Ouchi et al.
patent: 6229298 (2001-05-01), Sakamoto et al.
patent: 6549001 (2003-04-01), Dobbs et al.
patent: 6573705 (2003-06-01), Tajima et al.
patent: 6605938 (2003-08-01), Sentoku et al.
patent: 6892587 (2005-05-01), Mizutani et al.
patent: 7084537 (2006-08-01), Mizutani et al.
patent: 2001/0030533 (2001-10-01), Iwamoto et al.
patent: 2002/0126926 (2002-09-01), Ohtsuki et al.
patent: 2005/0174011 (2005-08-01), Mizutani et al.
patent: 2008/0309322 (2008-12-01), Sentoku et al.
patent: 101 49 642 (2003-04-01), None
patent: 1 058 119 (2000-12-01), None
patent: 1 160 492 (2001-12-01), None
patent: 2 574 501 (1986-06-01), None
patent: 3-279061 (1991-12-01), None
patent: 10-132603 (1998-05-01), None
patent: 10-160744 (1998-06-01), None
patent: 2000-346858 (2000-12-01), None
patent: 2001-021576 (2001-01-01), None
patent: 2002-54647 (2002-02-01), None
patent: 2002-206557 (2002-07-01), None
patent: 2002-327847 (2002-11-01), None
Japanese Office Action dated Jan. 20, 2009 with English-Language Translation.
Japanese Office Action dated Nov. 4, 2008 with English-Language Translation.
European Search Report dated Jan. 21, 2005.
European Search Report dated Apr. 18, 2005.

Affiliated with

Also associated with

Rating

Sealing device and rotation detector does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2714801