Position reference system for elevators
US7540357B2 · kind B2 · utility
10Cited by
12References
5Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 15, 2003 |
| Grant date | Jun 2, 2009 |
| Priority date | — |
| Expiry date | Oct 12, 2024 |
Classification
- Technology area (CPC D)Textiles; Paper
- CPC primaryD07B1/148
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A position reference system for use with a conveyance, such as an elevator (12). The system includes a code affixed to or embedded within a suspension device or primary motion coupling such as a rope or coated steel belt (16). A reader (28) in a fixed location determines the position of the conveyance.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.