Elevator car evacuation deterrent device

US5732796A · kind A · utility

Assignee

• OTIS ELEVATOR COMPANY · US

Inventors

• Edward E. Ahigian · Arlington Heights, US
• David W. Barrett · Hartland, US
• Thomas M. McHugh · Farmington, US
• Jerome F. Jaminet · South Windsor, US
• Thomas He · Unionville, US
• Richard E. Peruggi · Glastonbury, US
• Thomas M. Kowalczyk · Farmington, US
• Richard E. Kulak · Bristol, US

Key dates

• Filing date: Oct 31, 1995
• Grant date: Mar 31, 1998
• Expiry date: Oct 31, 2015

Classification

• Technology area (CPC B): Performing Operations; Transporting
• CPC primary: B66B13/16
• WIPO field: Handling
• WIPO sector: Mechanical engineering

Abstract

An elevator door evacuation deterrent device in combination with a moving vane elevator door coupler having a pair of coupler vanes pivotally connected by links to form a parallelogram movable between a compressed position, an expanded interlock position and a third expanded overtravel locking position when the elevator car is outside a landing zone. A top end from one of the vanes projects upwardly and abuts a locking plate on the elevator car to limit movement of the car door in the overtravel locking position when the car is outside of a landing zone.