Elevator – industrial lift truck – or stationary lift for vehicle – With monitoring – signalling – and indicating means
Reexamination Certificate
2011-07-19
2011-07-19
Salata, Jonathan (Department: 2837)
Elevator, industrial lift truck, or stationary lift for vehicle
With monitoring, signalling, and indicating means
C187S247000
Reexamination Certificate
active
07980363
ABSTRACT:
An elevator safety arrangement and a method for implementing safety spaces in an elevator has a mechanical safety device which can be set to a working position to ensure a sufficient safety space in the elevator shaft and an electric safety system for identifying the operating state of the mechanical safety device. An electric safety controller comprises means for measuring the total resistance of a series circuit. The method includes reading the number of landing doors open by means of detectors fitted in conjunction with the landing doors, reading the number of elevator car doors open by means of detectors fitted in conjunction with the elevator car doors, and reading the position of a mechanical safety device by means of detectors fitted in conjunction with the mechanical safety device. If it is established that number of landing doors open is greater than the number of elevator car doors open, then setting the safety system into a ‘person in shaft’ state and preventing operation of the elevator. If it is established during the ‘person in shaft’ state of the safety system that the number of landing doors open is equal to the number of elevator car doors open and that the mechanical safety device has been set to a working position, then allowing maintenance operation.
REFERENCES:
patent: 5057699 (1991-10-01), Spence
patent: 5107964 (1992-04-01), Coste et al.
patent: 5476157 (1995-12-01), Todaro
patent: 6032761 (2000-03-01), Coste
patent: 6173814 (2001-01-01), Herkel et al.
patent: 6193019 (2001-02-01), Sirigu et al.
patent: 6223861 (2001-05-01), Sansevero
patent: 6446760 (2002-09-01), Lisi
patent: 6452477 (2002-09-01), Roca et al.
patent: 6467585 (2002-10-01), Gozzo et al.
patent: 6550585 (2003-04-01), Schoppa et al.
patent: 6603398 (2003-08-01), Tinone et al.
patent: 7140470 (2006-11-01), Azpitarte
patent: 7201256 (2007-04-01), Deplazes et al.
patent: 7264090 (2007-09-01), Vecchiotti et al.
patent: 7278517 (2007-10-01), Gut
patent: 7350626 (2008-04-01), Lence et al.
patent: 7503435 (2009-03-01), Tyni et al.
patent: 7533763 (2009-05-01), Kattainen et al.
patent: 7708118 (2010-05-01), Tyni et al.
patent: 7849975 (2010-12-01), Ketonen et al.
patent: 7891467 (2011-02-01), Kattainen et al.
patent: 2005/0016797 (2005-01-01), Reynolds et al.
patent: 2009/0288920 (2009-11-01), Kattainen et al.
patent: 2010/0219022 (2010-09-01), Syrman et al.
patent: WO 2006/108433 (2006-10-01), None
Heikkilä Kimmo
Kattainen Ari
Syrman Timo
Birch & Stewart Kolasch & Birch, LLP
Kone Corporation
Salata Jonathan
LandOfFree
Elevator safety arrangement having safety spaces does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Elevator safety arrangement having safety spaces, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Elevator safety arrangement having safety spaces will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2741516