Vibrator
US6044709A · kind A · utility
6Cited by
12References
16Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Oct 29, 1998 |
| Grant date | Apr 4, 2000 |
| Priority date | — |
| Expiry date | Oct 29, 2018 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG01M7/04
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
A vibrator has (a) a housing including a wall forming a cavity, (b) a sleeve in the cavity, and (c) a piston received in the sleeve for reciprocating movement therein. In the improvement, the cavity has a boundary surface inside the housing and the vibrator includes an impact block interposed between the boundary surface and the sleeve. Such impact block is positionally retained in the cavity by the boundary surface and the sleeve.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.