Elevator – industrial lift truck – or stationary lift for vehicle – With monitoring – signalling – and indicating means – Monitors operational parameter
Patent
1995-01-13
1996-04-23
Wong, Peter S.
Elevator, industrial lift truck, or stationary lift for vehicle
With monitoring, signalling, and indicating means
Monitors operational parameter
187393, 356375, 2503417, 250345, B66B 300, G01B 1114
Patent
active
055095054
ABSTRACT:
An arrangement for detecting elevator car position relative to a floor landing includes an optical potentiometer associated with both the elevator car and the interior of an elevator hoistway. One portion of the potentiometer is attached to the elevator car, while the other portion of the potentiometer is fixed within the hoistway. Car position is ascertained by illuminating portions of a fluorescent fiber optical cable and then reading electrical signals outputted by photodetectors at either end of the cable. The difference between the electrical signals corresponds to the distance of the elevator car from the landing.
REFERENCES:
patent: 3747710 (1973-07-01), Winkler
patent: 3779346 (1973-12-01), Winkler
patent: 3785463 (1974-01-01), Kuhl et al.
patent: 4083430 (1978-04-01), Gingrich
patent: 4245721 (1981-01-01), Masel
patent: 4245726 (1981-01-01), Kohler
patent: 4256203 (1981-03-01), Masel
patent: 4375057 (1983-02-01), Weise et al.
patent: 4520904 (1985-06-01), Rado et al.
patent: 4564085 (1986-01-01), Melocik et al.
patent: 4789049 (1988-12-01), Watanabe et al.
patent: 4831561 (1989-05-01), Utsaumi
patent: 5005979 (1991-04-01), Sontag et al.
Michel F. Laguesse, Optical Potentiometer Using Fluorescent Optical Fiber for Position Measurement, Dec. 1989, pp. 5144-5148.
Bernard Chiron, Highly Efficient Plastic Optical Fluorescent Fibers and Sensors undated, 12 pages.
Optectron specification, Fluroescent Plastic Optical Fibers, Sep. 1991 2 pages.
Garfinkel Michael
Slabinski Chester J.
Steger Rudolph
Abate Joseph P.
Nappi Robert
Otis Elevator Company
Wong Peter S.
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