Pneumatic hammer drill having vibration damping end cap
US7413030B2 · kind B2 · utility
5Cited by
13References
3Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 19, 2006 |
| Grant date | Aug 19, 2008 |
| Priority date | — |
| Expiry date | Oct 5, 2026 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2222/57
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pneumatic hammer drill includes a handle body, a pneumatic cylinder, a piston, a tool, and a damping member. The handle body has an upper part that defines a front cavity and that has a rear end. The pneumatic cylinder has a cylinder rear end fitted in the front cavity, a front tool-connecting end, and a pressure chamber. The piston is disposed slidably in the pressure chamber. The tool is inserted into the pressure chamber through the front tool-connecting end. The damping member is made of a vibration-damping material, and is attached to the rear end of the handle body.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.