Patent · US Expired

Elevator top of car safety

US7523809B2 · kind B2 · utility

10Cited by
6References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateApr 30, 2004
Grant dateApr 28, 2009
Priority date
Expiry dateAug 11, 2025

Classification

  • Technology area (CPC B)Performing Operations; Transporting
  • CPC primaryB66B11/0226
  • WIPO fieldHandling
  • WIPO sectorMechanical engineering

Abstract

An elevator car (2) comprises a cover (14; 40) extending over at least a portion of the top surface of the car (24). The cover (14; 40) is mounted on a resilient support (28, 42). The car (2) further comprises means (32; 44) for detecting displacement of the cover corresponding to the weight of a person being applied to the cover. If such displacement is detected, normal operation of the car (2) is prevented.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.