Manipulable tool mount
US4141594A · kind A · utility
0Cited by
4References
22Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Jun 6, 1977 |
| Grant date | Feb 27, 1979 |
| Priority date | — |
| Expiry date | Jun 6, 1997 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE21C31/10
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
A mining machine having a mineral winning head mount including a plurality of links pivotted successively one to another and powered means for pivotting the successive links about their pivot axes and whereon said links and powered means allow the mineral winning head to be retracted at least partially into an angled configuration of the links.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.