Cable slack and guide monitoring apparatus and method for a lift device
US7222839B2 · kind B2 · utility
18Cited by
23References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Feb 12, 2004 |
| Grant date | May 29, 2007 |
| Priority date | — |
| Expiry date | Aug 5, 2024 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66D1/485
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
The present invention is a method and apparatus for monitoring the condition of a cable in a human power amplifying lift system. The method and apparatus employ a cable slack sensor and a cable end sensor to override and prevent the lift from continuing to unwind the lift cable when slack or and end of travel limit has been reached.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.