Method for monitoring operating states of an elevator unit by sensing movable brake part
US8011481B2 · kind B2 · utility
5Cited by
3References
7Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Sep 28, 2010 |
| Grant date | Sep 6, 2011 |
| Priority date | — |
| Expiry date | Sep 28, 2030 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T29/49826
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A method for monitoring the operating state of an elevator drive having a brake includes the mounting of a sensor on a movable brake part. The sensor generates an output proportional to the extent of relative movement between the brake part upon which it is mounted and a fixed brake part. The sensor output is monitored to provide an indication of the operating state of the drive and may be combined with other data to provide indications of a variety of drive states.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.