Elevator – industrial lift truck – or stationary lift for vehicle – Having call button with indicator
Reexamination Certificate
2005-02-15
2005-02-15
Salata, Jonathan (Department: 2837)
Elevator, industrial lift truck, or stationary lift for vehicle
Having call button with indicator
C335S207000
Reexamination Certificate
active
06854566
ABSTRACT:
A programmable switching device that employs a Hall Effect sensor and a moving magnet is disclosed. The Hall Effect sensor is electrically connected to a programmable microprocessor that is programmed to detect changes in Hall Effect voltages at the sensor. The programmable switching device may also be configured as a rotary switching device. By using a plurality of magnets and Hall Effect transducers and orienting some magnets with their polarities in different directions, a temper-proof switch can be achieved. The programmable switching device may be connected to a serial bus that is interfaced with an elevator controller.
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Nickerson James A.
Palazzola Michael A.
Sweet Robert H.
Frost Brown Todd LLC
Salata Jonathan
Thyssenkrupp Elevator Capital Corp.
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