Pipe rammer
US5238072A · kind A · utility
3Cited by
3References
5Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Jun 29, 1990 |
| Grant date | Aug 24, 1993 |
| Priority date | — |
| Expiry date | Jun 29, 2010 |
Classification
- Technology area (CPC E)Fixed Constructions
- CPC primaryE02D7/28
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In a rammer for internal ramming of pipes, having its rear end connected with the rear end (viewed in the direction of advance) of the driven pipe, the application of the driving force is improved by a mechanically simple connection.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.