Monitor and/or overload means
US6144307A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jul 20, 1998 |
| Grant date | Nov 7, 2000 |
| Priority date | — |
| Expiry date | Jul 20, 2018 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB66D1/58
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
A device which relates to the monitoring of things such as cranes and hoists and seeks to improve on known so-called capacity limiters or overload devices usually associated with the hoist or chain rope. A monitoring device for use with a crane or hoist having a drive roller with a drive shaft and a gearbox directly or indirectly attached to the drive shaft. The monitoring device includes a means of resisting rotational movement of the gearbox located between the gearbox and an adjacent rigid structure, the means between the gearbox ad the adjacent rigid structure being such as to allow a limited degree of movement of the gearbox, and there being a means to react to the movement of the gearbox associated with the means of resisting rotational movement.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.