Pneumatic percussive mechanism
US6799644B2 · kind B2 · utility
18Cited by
12References
15Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | May 1, 2003 |
| Grant date | Oct 5, 2004 |
| Priority date | — |
| Expiry date | May 1, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D2250/221
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
A pneumatic percussive mechanism having an axially reciprocating percussive loaded percussion piston (2), wherein a non-contacting magnetic field sensitive sensor (3) is arranged radial thereto. The percussion piston (2) features at least externally ferromagnetic material and has a plurality of axially separated zones (4) of different magnetic permeability.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.