Opening/closing device

Details Opening/closing device Opening/closing device

2011-06-14

2011-06-14

Redman, Jerry (Department: 3634)

Movable or removable closures

Safety means responsive to obstruction to closure

C049S027000, C200S061430

Reexamination Certificate

active

07958672

ABSTRACT:
A conductive movable body opens and closes an opening portion formed in a conductive opening forming body. The movable body has a front edge portion positioned in a front side in the closing direction of the movable body. The opening portion has an opposed edge portion opposed to the front edge portion. The sensor is arranged in a layout body corresponding to one of the opening forming body and the movable body, and is arranged in one of the front edge portion and the opposed edge portion. The sensor is capable of detecting a conductive object-to-be-detected on the basis of a change of a capacitance between a sensor electrode and the object-to-be-detected coming close to the sensor electrode. A guard electrode is provided between the layout body and the sensor electrode. An electric potential of the guard electrode is kept equal to an electric potential of the sensor electrode or kept at a fixed rate with respect to the electric potential of the sensor electrode. Accordingly, it is possible to prevent an improper operation of a capacitance type sensor in the opening and closing apparatus.

REFERENCES:
patent: 5023418 (1991-06-01), Beckhausen
patent: 5079417 (1992-01-01), Strand
patent: 5166586 (1992-11-01), Yaguchi
patent: RE34665 (1994-07-01), Strand
patent: 5921026 (1999-07-01), Miller
patent: 6339305 (2002-01-01), Ishihara et al.
patent: 6683296 (2004-01-01), Miller et al.
patent: 7000352 (2006-02-01), Ishihara et al.
patent: 7015666 (2006-03-01), Staus
patent: 7116117 (2006-10-01), Nakano et al.
patent: 7545153 (2009-06-01), Abe
patent: 2003/0080755 (2003-05-01), Kobayashi
patent: 2004/0172879 (2004-09-01), Regnet et al.
patent: 2006/0191203 (2006-08-01), Ueda et al.
patent: 2009/0100755 (2009-04-01), Ishihara
patent: 11-72395 (1999-03-01), None
patent: 11-191339 (1999-07-01), None
patent: 11-191339 (1999-07-01), None
patent: 11-210320 (1999-08-01), None
patent: 2000-065653 (2000-03-01), None
patent: 2001-135700 (2001-05-01), None
patent: 2003-202383 (2003-07-01), None
patent: 2004-059343 (2004-07-01), None
patent: 2004-257788 (2004-09-01), None
patent: 2006/101109 (2006-09-01), None

Affiliated with

Also associated with

Rating

Opening/closing device does not yet have a rating. At this time, there are no reviews or comments for this patent.

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

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2675646