Muffler
US4749058A · kind A · utility
11Cited by
7References
20Claims
0Family size
Inventor
Key dates
| Filing date | May 6, 1987 |
| Grant date | Jun 7, 1988 |
| Priority date | — |
| Expiry date | May 6, 2007 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF15B21/008
- WIPO fieldMechanical elements
- WIPO sectorMechanical engineering
Abstract
A sound attenuator may be directly threadedly connected to the exhaust port of a pneumatic device whose exhaust air is to be attenuated. A fail safe blowout plug is provided in the attenuator at the end remote from the exhaust port connection. A cartridge screen covering exhaust slots in the attenuator wall is trapped within an annular groove in the end of the attenuator remote from the exhaust port connection. The screen overlies a protective cover within the attenuator which extends over the blowout plug.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.