Muffler/exhaust extractor and method
US5962822A · kind A · utility
Inventor
Key dates
| Filing date | Jun 23, 1998 |
| Grant date | Oct 5, 1999 |
| Priority date | — |
| Expiry date | Jun 23, 2018 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N1/10
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
An exhaust conditioning device, comprising a housing having an entrance duct, an exit duct, and a hollow interior defined within the housing between the entrance duct and the exit duct; a conical baffle carried coaxially within the housing downstream of the entrance duct and configured to form a generally outwardly extending compression chamber therebetween; and a frustoconical baffle carried coaxially within the housing downstream of the conical baffle and upstream of the exit duct and configured to form a generally inwardly extending compression chamber; wherein the conical baffle cooperates with the housing to form a conical vacuum chamber and the frustoconical baffle cooperates with the housing to form a substantially annular vacuum chamber, downstream of the conical vacuum chamber. In one form, the exhaust conditioning device comprises an exhaust muffler. Additionally, a method is disclosed.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.