Inductively coupled power, useful for wireless elevator hall fixtures

US7479861B2 · kind B2 · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Bruce Zepke · Glastonbury, US
• William A. Veronesi · Hartford, US
• Joseph Zacchio · Wethersfield, US
• Paul A. Stucky · Stockton, US
• Dennis Bellamy · Stafford Springs, US
• Christian Netter · Vernon, US
• Alberto Vecchiotti · Berlin, DE
• Adriana Bacellar · Glastonbury, US
• Luiz Bacellar · Glastonbury, US
• Deborah C. Haas · Coventry, US

Key dates

• Filing date: Jun 10, 2003
• Grant date: Jan 20, 2009
• Expiry date: Jul 11, 2024

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y02B50/00
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

Fixtures (27) at a doorway of a landing are formed integrally with a frame (17). Power is provided by an inductive coupler (32) having a core (70) and primary (75). The core is thin ferrite and extend significantly beyond the coils in the plane the coils are wound, to provide en extremely low resistance path for the efficient transfer of AC power.