The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Nov. 26, 1985
Filed:
Aug. 30, 1983
Michael J Brick, Wallingford, CT (US);
Linus R Dirnberger, Randolph, NJ (US);
Westinghouse Electric Corp., Pittsburgh, PA (US);
Abstract
An elevator system including an elevator car, a controller for directing the elevator car to serve the floors of a building, lamps at each floor served by the elevator car, and a processor at each floor, including a microcomputer, for energizing and deenergizing the associated lamps. The controller issues illumination commands which indicate the desired illumination status for predetermined lamps, which commands are implemented by the processor associated with the lamp. Each processor includes a detector which determines the actual illumination status of the lamp in question, and a comparator for comparing the actual status and the commanded status, to detect lamp malfunctions. A malfunction detection is stored and used to prevent the associated lamp from subsequently being energized, until service personnel have corrected the problem.