Elevator based security system
US5749443A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 12, 1995 |
| Grant date | May 12, 1998 |
| Priority date | — |
| Expiry date | May 12, 2015 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66B2201/4676
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A security system for an elevator is disclosed that secures access to a landing by having the resident use a transmitter identifying the secured landing. In a building having a plurality of secured landings, the transmitter provides access to only one of the secured landings by emitting a signal that identifies only that secured landing. The emitted signal is received by a receiver and sent to a controller of the elevator system. In a particular embodiment, the elevator system includes a plurality of common landings and a plurality of private landings. Each transmitter provides access to all the common landings and only the particular private landing that corresponds to that transmitter.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.