Muffler for a compressed air driven motor
US5097924A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | May 5, 1989 |
| Grant date | Mar 24, 1992 |
| Priority date | — |
| Expiry date | May 5, 2009 |
Classification
- Technology area (CPC Y)Emerging Cross-Sectional Technologies
- CPC primaryY02T10/12
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A sound absorbing muffler for a compressed air driven motor has first and second mutually confronting end walls connected by four side walls. A pad of sound absorbing material constructed from SAE No. F-7 polyester felt is contained in the muffler housing. An entrance port at the center of the first end wall supplies exhaust to the interior volume of the muffler housing. A series of depressions in the first end wall disperse the exhaust over a first planar surface of the pad of sound absorbing material. The porosity of the sound absorbing material permits the exhaust along with grease, oil or water carried by the exhaust to pass through the pad. The exhaust exits a second planar surface of the pad at the second end wall of the muffler housing and is discharged from the interior volume of the muffler housing through a plurality of louvers provided in the second wall of the muffler housing. The sound absorbing muffler provides a compact muffler of reduced size that adequately silences the exhaust of the air motor and does not appreciably restrict the flow of the exhaust through the muffler.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.