Patent ID: 6443255
Filing Date: 2002-09-03
Classification: F01N

Abstract:
A boat muffler comprising:a) a housing having an intake end and a discharge end, and a continuous wall defining an interior cavity; b) a perforated intake cylinder within said housing, said intake cylinder having an intake end and a discharge end; c) a perforated discharge cylinder within said housing, said discharge cylinder having an inner end and a discharge end, said intake and discharge cylinder being in abutting, parallel alignment, said intake and discharge cylinders abutting said housing wall and dividing said housing interior cavity into first and second interior chambers; d) a first plate extending across the interior cavity of said housing, said first plate blocking the inner end of said discharge cylinder, and including a hole in communication with the intake end of said intake cylinder; and e) a second plate extending across the interior cavity of said housing, said second plate including a hole in communication with the discharge end of said discharge cylinder.