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:
Sep. 04, 2007
Filed:
Aug. 01, 2002
Alberto Vecchiotti, Middletown, CT (US);
Adriana Bacellar, Glastonbury, CT (US);
Luiz Bacellar, Glastonbury, CT (US);
Deborah Haas, Coventry, CT (US);
Christian Netter, Vernon, CT (US);
Paul Stucky, Vernon, CT (US);
William A. Veronesi, Hartford, CT (US);
Joseph Zacchio, Wethersfield, CT (US);
Bruce Zepke, Glastonbury, CT (US);
Alberto Vecchiotti, Middletown, CT (US);
Adriana Bacellar, Glastonbury, CT (US);
Luiz Bacellar, Glastonbury, CT (US);
Deborah Haas, Coventry, CT (US);
Christian Netter, Vernon, CT (US);
Paul Stucky, Vernon, CT (US);
William A. Veronesi, Hartford, CT (US);
Joseph Zacchio, Wethersfield, CT (US);
Bruce Zepke, Glastonbury, CT (US);
Otis Elevator Company, Farmington, CT (US);
Abstract
An elevator safety chain includes a plurality of passive radio frequency identification devices (RFIDs) (--and), which are associated, respectively, with hoistway door locks, upper hoistway limits, lower hoistway limits, overspeed detection, car door lock, emergency stop switch, and inspection switch. RFlDs may be associated with car the call buttons () and/or hall call buttons (). The RFIDs may have a switch () in the frequency-determining circuitry () which defeats the RFID's ability to respond, or a switch () which alters the responding frequency. The RFIDs may sense safe or unsafe conditions, or call requests, by either the presence of absence, or vice versa, of adjacent magnetic reluctance ().