Patent · US Expired

Elevator system having hall lantern assembly for elevator car door post of hatch door post

US4924974A · kind A · utility

7Cited by
4References
11Claims
0Family size

Assignee

Inventors

Key dates

Filing dateJan 11, 1989
Grant dateMay 15, 1990
Priority date—
Expiry dateJan 11, 2009

Classification

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

Abstract

An elevator system including a door post having inner and outer sides, and a hall lantern assembly fixed to the inner side. The door post includes a jamb defining upper and lower openings, and the hall lantern assembly includes upper and lower lenses which are resiliently biased to project through the upper and lower openings, respectively, in operating positions of the lenses. The upper and lower lenses have service positions achievable by depressing a lens against the bias, and then slidably moving the lens in a vertical direction, with the service positions of the upper and lower lenses enabling the hall lantern assembly to be serviced through the upper and lower openings in the jamb.

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