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US Patent 7493991 Electromagnetic/ultrasonic roll-calling/answering (EURA) system for elevator positioning

Patent 7493991 was granted and assigned to Otis Elevator Company on February, 2009 by the United States Patent and Trademark Office.

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Patent Citations Received
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US Patent 12060247 Elevator car leveling sensor
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Patent Inventor Names
Alan M. Finn0
Jae-Hyuk Oh0
Norbert A. M. Hootsmans0
Pei-Yuan Peng0
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Patent abstract

A positioning system for an elevator cab (37) includes transponder modules (10) having a unique ID for receiving a signal (39) and emitting an ultrasonic signal when the signal is equivalent to the unique ID with a determination of position based on the time duration of the signals.

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US Patent 07493991 Electromagnetic/ultrasonic roll-calling/answering (EURA) system for elevator positioning US Patent 7493991 Electromagnetic/ultrasonic roll-calling/answering (EURA) system for elevator positioning

Infobox
Patent Number
074939910
Patent Number
74939910
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=074939910
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Infobox
Is a
Patent
Patent
0
Current Assignee
Otis Elevator Company
Otis Elevator Company
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Patent Jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
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Patent Number
074939910
Date of Patent
February 24, 2009
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Patent Application Number
105570880
Date Filed
May 30, 2003
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Official Website
https://pdfpiw.uspto.gov/.piw?Docid=074939910
Patent Primary Examiner
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Jonathan Salata
0
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Website URL
https://pdfpiw.uspto.gov/.piw?Docid=07493991
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 US Patent 07493991 Electromagnetic/ultrasonic roll-calling/answering (EURA) system for elevator positioning

Infobox
Is a
Patent
Patent
Current assignee
Otis Elevator Company
Otis Elevator Company
Patent jurisdiction
United States Patent and Trademark Office
United States Patent and Trademark Office
Patent number
07493991
Date of patent
February 24, 2009
Patent application number
10557088
Date Filed
May 30, 2003
Patent primary examiner
‌
Jonathan Salata

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