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:
Feb. 24, 2009
Filed:
May. 30, 2003
Applicants:
Jae-hyuk OH, Tolland, CT (US);
Alan M. Finn, Hebron, CT (US);
Pei-yuan Peng, Ellington, CT (US);
Norbert A. M. Hootsmans, South Glastonbury, CT (US);
Inventors:
Jae-Hyuk Oh, Tolland, CT (US);
Alan M. Finn, Hebron, CT (US);
Pei-Yuan Peng, Ellington, CT (US);
Norbert A. M. Hootsmans, South Glastonbury, CT (US);
Assignee:
Otis Elevator Company, Farmington, CT (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B66B 1/34 (2006.01);
U.S. Cl.
CPC ...
Abstract
A positioning system for an elevator cab () includes transponder modules () having a unique ID for receiving a signal () 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.