Excavating apparatus
US5015147A · kind A · utility
16Cited by
17References
4Claims
0Family size
Inventors
Key dates
| Filing date | May 18, 1989 |
| Grant date | May 14, 1991 |
| Priority date | — |
| Expiry date | May 18, 2009 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02F9/085
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
Excavating apparatus of limited mobility adapted primarily for indoor use on brick or cement floors and having a body adapted to make substantially planar contact with the floor. The apparatus is stabilized by at least one pair of legs having respective retractile feet spaced from the body and respective, substantially planar pads connected to the free ends of the feet. The legs are also pivotally attached at an inner end remote from the pads to respective sides of the apparatus for lateral rotation towards and away from each other so as to vary the distance separating the feet.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.