Ground stabilized transportable drop hammer
US5490740A · kind A · utility
Inventor
Key dates
| Filing date | Sep 22, 1994 |
| Grant date | Feb 13, 1996 |
| Priority date | — |
| Expiry date | Sep 22, 2014 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D17/28
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A transportable drop hammer for impacting a ground surface adapted to be removably coupled to a driven host transport apparatus having lifting arms. An upstanding frame is couplable to the host transport apparatus and is provided as having a stabilizing foot portion attached to the frame for contacting the ground surface. A mast is mast attached to the frame and is disposed substantially vertical to the ground surface. A weight assembly, having a ground confronting face portion and at least one bearing surface engaging the mast, is operable between a ground position impacting the ground surface and a drop position. For selectively raising the weight assembly to a predetermined drop position, a manually controlled lifting apparatus is provided which actuable to release the weight assembly for its substantial free fall from the drop position to the ground position.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.