Elevator

Details Elevator Elevator

2008-12-04

2009-12-15

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

With monitoring, signalling, and indicating means

Monitors operational parameter

C177S147000

Reexamination Certificate

active

07631731

ABSTRACT:
The present invention relates to an elevator and a method for measuring the load in an elevator, in which the elevator car is suspended on hoisting ropes with at least one upward-directed diverting pulley or diverting pulley pair, from which the elevator ropes go upwards on both sides, and at least one downward-directed diverting pulley or diverting pulley pair, from which the elevator ropes go downwards on both sides. In the elevator at least one upward-directed diverting pulley or diverting pulley pair and at least one downward-directed diverting pulley or diverting pulley pair is fixed to the elevator car with a shared supporting structure. In the method the tension information is measured from a supporting structure and a load-weighing signal is formed using the tension information obtained.

REFERENCES:
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patent: 6325179 (2001-12-01), Barreiro et al.
patent: 6715587 (2004-04-01), Sittler et al.
patent: 7237656 (2007-07-01), Barrett et al.
patent: 7493834 (2009-02-01), Gonzalez Gallegos
patent: 2008/0271954 (2008-11-01), Fischer
patent: 0 776 857 (1997-06-01), None
patent: 1 431 227 (2004-06-01), None
patent: WO-01/83350 (2001-11-01), None
patent: WO-2004/067429 (2004-08-01), None
patent: WO-2005/0471 (2005-01-01), None

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