Crime prevention apparatus for elevators
US4460066A · kind A · utility
9Cited by
10References
12Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jan 31, 1983 |
| Grant date | Jul 17, 1984 |
| Priority date | — |
| Expiry date | Jan 31, 2003 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B5/025
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A crime prevention apparatus for controlling the operation of an elevator which comprises a night detector for detecting night, a passenger detector for detecting the presence of only one adult passenger in an elevator cage and a start instructing unit for enabling the operation of the cage only when the passenger and the night detectors are operated, thereby allowing the operation of the cage only when one adult passenger rides in the cage during the night and thereby preventing most crimes from occuring in the cage during the night.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.