Hammer having piston sleeve with spiral grooves
US9909666B2 · kind B2 · utility
1Cited by
14References
19Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | Dec 1, 2014 |
| Grant date | Mar 6, 2018 |
| Priority date | — |
| Expiry date | Aug 1, 2036 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/231
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A sleeve is disclosed for use with a hammer. The sleeve may have a generally cylindrical body with a first end and a second end. The sleeve may also have a plurality of channels spiraling at least partially around the generally cylindrical body between the first and second ends.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.