Load limiting apparatus for a hoist
US5150768A · kind A · utility
Assignee
Inventors
Key dates
| Filing date | Oct 3, 1991 |
| Grant date | Sep 29, 1992 |
| Priority date | — |
| Expiry date | Oct 3, 2011 |
Classification
- Technology area (CPC A)Human Necessities
- CPC primaryA62B1/10
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
Apparatus for limiting the amount of force applied to a cable of a hoist by applying a force on clutch plates which are operatively joined to rotatable plates so that there is relative rotation between the clutch plates and the rotatable place when a force, equivalent to that placed on the clutch plates, is placed on the load supporting end of the cable. A fall arresting device is also provided having arresting apparatus for applying a force to rotate a shaft in a clockwise direction and for permitting controlled rotation of the shaft in a counter-clockwise direction but arresting uncontrolled rotation of the shaft in a counter-clockwise direction.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.