Twin elevator systems

US7841450B2 · kind B2 · utility

Assignee

• ThyssenKrupp Elevator Capital Corporation · US

Inventors

• Rory Smith · El Cajon, US
• Randolph W. Huff · Hartsdale, US
• Richard D. Peters · Westfield, US
• Bruce A. Powell · Canton, US
• Gerhard Thumm · Erbach, DE

Key dates

• Filing date: Aug 19, 2005
• Grant date: Nov 30, 2010
• Expiry date: Jun 12, 2028

Classification

• Technology area (CPC Y): Emerging Cross-Sectional Technologies
• CPC primary: Y10S187/902
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

An elevator system comprises at least two independently operable elevator cars in each of a plurality of elevator shafts within a building. The elevator system comprises at least one first elevator shaft having a lower first and a lower second region, where a first elevator car moves within the lower first region of the first elevator shaft and a second elevator car moves within the lower second region. The first and second elevators are moveably controlled independently of each other within the first shaft. The system also includes at least one second elevator shaft having an upper first and an upper second region, where a third elevator car moves within the upper first region of the second elevator shaft and a fourth elevator car moving within the upper second region. The third and fourth elevator cars also are moveably controlled independently of each other.