Conveyor belt
US5004098A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Apr 21, 1989 |
| Grant date | Apr 2, 1991 |
| Priority date | — |
| Expiry date | Apr 21, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10S198/957
- WIPO fieldHandling
- WIPO sectorMechanical engineering
Abstract
An elongatable conveyor belt having an internal stretch limiter is disclosed. The conveyor belt includes a lower layer of transverse reinforcing cords and an upper layer of transverse reinforcing cords disposed at opposing angles relative to the transverse axis of the conveyor belt. Preferably, depressions are formed in the upper transverse reinforcing cords to facilitate troughing of the conveyor belt. An internal stretch limiter such as an angularly woven fabric, sinusoidally disposed cords or stretchable cords are provided only in the central region of the belt. Because stretch limiting devices are only provided in the center of the conveyor belt, the belt remains in tension to retain material thereon during horizontal curves while enabling the outer edge to elongate to negotiate the curve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.