Muffler for portable pneumatic tool
US4205732A · kind A · utility
28Cited by
6References
14Claims
0Family size
Assignee
Inventors
Key dates
| Filing date | Mar 7, 1979 |
| Grant date | Jun 3, 1980 |
| Priority date | — |
| Expiry date | Mar 7, 1999 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB25D17/12
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
The invention relates to a muffler for portable pneumatic tools wherein the exhaust of the pneumatic motor is passed into an expansion chamber having a perforated outlet baffle biased to the direction of the flow in the chamber. The flow from the expansion chamber enters a muffler chamber having an outlet baffle also biased to the direction of fluid flow. Both the first and second baffle are formed in an end cap for the handle of the pneumatic tool and form a removable extension thereof.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.