Self-powered elevator button

Details Self-powered elevator button Self-powered elevator button

2007-07-24

2007-07-24

Salata, Jonathan (Department: 2837)

Elevator, industrial lift truck, or stationary lift for vehicle

Having call button with indicator

C187S413000

Reexamination Certificate

active

11010099

ABSTRACT:
An elevator hall call device inductively receives an electrical signal from an interlock wiring circuit by means of a coupling device. The elevator hall call device comprises a capacitive device which stores electrical charge based on the electrical signal received from the interlock wiring circuit by means of the coupling device. Hall call circuitry sends and receives signaling information between at least one elevator controller over the interlock wiring circuit, where the hall call circuitry is coupled to the capacitive device for receiving electrical power based on the stored electrical charge in the capacitive device.

REFERENCES:
patent: 3461422 (1969-08-01), Hansen
patent: 6193019 (2001-02-01), Sirigu et al.
patent: 6467585 (2002-10-01), Gozzo et al.
patent: 6629583 (2003-10-01), Valk et al.
patent: 2003/0089558 (2003-05-01), Zepke et al.
patent: 2005/0284706 (2005-12-01), Vecchiotti et al.

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