Apparatus for driving pipes through the ground
US4650374A · kind A · utility
7Cited by
8References
6Claims
0Family size
Inventor
Key dates
| Filing date | Jul 2, 1985 |
| Grant date | Mar 17, 1987 |
| Priority date | — |
| Expiry date | Jul 2, 2005 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY10T403/7052
- WIPO fieldCivil engineering
- WIPO sectorOther fields
Abstract
In an apparatus for driving open-ended pipes through the ground, a hollow intermediate piece having a truncated conical transition portion with outlet openings for the removal of soil, which is forced into the pipe during driving, is disposed between the rearward end of the pipe and a pneumatic rammer for driving the pipe.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.