Machine used in connection with underground mining having an operator protective shield
US6325460A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Jan 28, 2000 |
| Grant date | Dec 4, 2001 |
| Priority date | — |
| Expiry date | Jan 28, 2020 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21D20/00
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A protective shield for machines having an operator station protects an operator located on the operator station during operation of the machine. The protective shield defines a flexible curtain of elongated members which covers an exposed side of the operator station, but yet is also of a construction that allows the operator to reach and see through the curtain when desired. The protective shield has an adjustable height to accommodate a variety of machines and to adjust to underground mines having different sizes and shapes. The protective shield is easily removable from and reattachable to machines without the use of additional tools, thereby enhancing its versatility and usefulness. In a preferred embodiment, the protective shield comprises a somewhat stretchable chain mesh, which hangs from a roof canopy extending along side the operator station.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.