Elevator – industrial lift truck – or stationary lift for vehicle – Alarm system
Patent
1998-09-21
2000-05-02
Salata, Jonathan
Elevator, industrial lift truck, or stationary lift for vehicle
Alarm system
G08B 2100
Patent
active
060560886
ABSTRACT:
Monitoring equipment for an elevator drive control includes two modules, a safety circuit sensor system and a motor-switching and/or brake-switching circuit, wherein the monitoring of a safety circuit and the consequential actions resulting therefrom takes place exclusively by means of electronic components while avoiding electrically conductive separating locations. By the use of electronic components, electromechanical switching elements, which have electrically conductive separating locations, can be dispensed with. In addition, an appreciable reduction in the noise level is achieved, since switching noises no longer arise. This has an advantageous effect particularly in the case of elevator installations without a machine room. Furthermore, the manufacturing costs can be significantly reduced and a high security and reliability of the monitoring equipment can be ensured by the use of usual electronic components.
REFERENCES:
patent: 3882969 (1975-05-01), Podcameni et al.
patent: 5107964 (1992-04-01), Coste et al.
patent: 5270498 (1993-12-01), Tanahashi
patent: 5487448 (1996-01-01), Schollkopf et al.
patent: 5616895 (1997-04-01), Spiess
patent: 5635688 (1997-06-01), Kantesaria et al.
Inventio AG
Salata Jonathan
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