Safety monitoring device with instantaneous speed...

Details Safety monitoring device with instantaneous speed... Safety monitoring device with instantaneous speed...

2005-01-27

2008-10-21

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

Having computer control of elevator

Includes redundant circuitry

C187S394000

Reexamination Certificate

active

07438158

ABSTRACT:
A safety monitoring device is provided for a lift car which can be moved in a lift shaft by a traction drive via a lift control system and whose instantaneous position can be registered by a position registering device which supplies two position signals, produced independently of each other, in a predetermined time pattern, having two-channel evaluation of the position signals by means of a microprocessor in each case for location-dependent, instantaneous determination of the speed of the lift car and for comparison with a predefined movement profile, it being possible for a trigger signal that can be output via a safety relay stage to be generated if a predetermined instantaneous speed desired value is exceeded.

REFERENCES:
patent: 3902572 (1975-09-01), Ostrander
patent: 5070967 (1991-12-01), Katzy et al.
patent: 5274203 (1993-12-01), Skalski et al.
patent: 5736695 (1998-04-01), Hoepken
patent: 5883345 (1999-03-01), Schonauer et al.
patent: 7204347 (2007-04-01), Schonauer et al.
patent: 7228943 (2007-06-01), Kugiya et al.
patent: 101 46 044 (2003-04-01), None
patent: 10150463 (2003-04-01), None
patent: 0 773 180 (1997-05-01), None
patent: 0926509 (1999-06-01), None

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