Method of modernizing an elevator installation

Details Method of modernizing an elevator installation Method of modernizing an elevator installation

2007-07-25

2010-11-09

Benson, Walter (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

Having independent supports carrying distinct loads and...

C187S383000

Reexamination Certificate

active

07828120

ABSTRACT:
A method of modernizing an elevator installation that comprises a first elevator car movable in a shaft by a first drive includes installing at least one second drive without changing the first drive. In addition, at least one second elevator car is installed in the shaft and connected with the second drive. Moreover, a control unit is installed or configured in such a manner that it controls the first drive and the second drive.

REFERENCES:
patent: 4632224 (1986-12-01), Nowak et al.
patent: 5419414 (1995-05-01), Sakita
patent: 5749441 (1998-05-01), Bittar et al.
patent: 5924524 (1999-07-01), Barker et al.
patent: 6871727 (2005-03-01), Jokela et al.
patent: 7467691 (2008-12-01), Deplazes et al.
patent: 2005/0077115 (2005-04-01), Urata
patent: 2005/0087402 (2005-04-01), Haegi et al.
patent: 2006/0016640 (2006-01-01), Duenser et al.
patent: 2007/0039785 (2007-02-01), Smith et al.
patent: 1319624 (2003-06-01), None
patent: 1489033 (2004-12-01), None
patent: WO 2004/043842 (2004-05-01), None
patent: WO 2004/048244 (2004-06-01), None

Affiliated with

Also associated with

Rating

Method of modernizing an elevator installation does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Method of modernizing an elevator installation, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Method of modernizing an elevator installation will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4237244