Wet marine exhaust muffler
US5969300A · kind A · utility
Assignee
Inventor
Key dates
| Filing date | Sep 18, 1997 |
| Grant date | Oct 19, 1999 |
| Priority date | — |
| Expiry date | Sep 18, 2017 |
Classification
- Technology area (CPC F)Mechanical Engineering; Lighting; Heating
- CPC primaryF01N2590/02
- WIPO fieldEnvironmental technology
- WIPO sectorChemistry
Abstract
A wet marine exhaust muffler includes a metallic housing and a polymeric jacket substantially encapsulating the metallic housing. The metallic housing defines one or more chambers in the interior of the housing. An inlet pipe and an outlet pipe each extend through openings in the polymeric jacket and communicate with at least one chamber in the interior of the housing. The metallic housing is preferably formed from stainless steel and the polymeric jacket is preferably formed from a thermoplastic material having a thickness of approximately 0.001 inch to 0.1 inch, and more preferably of approximately 0.005 inch to 0.060 inch. According to one preferred method for inhibiting the explosion of a wet marine exhaust muffler, the muffler housing (but not the inlet and outlet pipes) is at least partially surrounded by a heat shrinkable thermoplastic tubing and the heat shrinkable thermoplastic tubing is heated by conventional means to shrink the heat shrinkable thermoplastic tubing over the muffler housing to form the thermoplastic jacket. It is one object of the invention to provide a wet marine exhaust muffler, and a method for manufacturing such a muffler, effective to prevent or minim…
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.