Adjustable motorcycle muffler

Acoustics – Sound-modifying means – Muffler – fluid conducting type

Patent

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Details

181239, 181264, F01N 118

Patent

active

047154721

ABSTRACT:
An adjustable motorcycle muffler affixable to the exhaust pipe of a motorcycle. The muffler includes a stationary ring which is affixed to the exit end of the muffler body and the stationary ring has several openings therethrough. An adjustable ring is affixed to the face of the stationary ring and is movable to increase or decrease the gas flow resistance through the stationary ring.

REFERENCES:
patent: 3145800 (1964-08-01), Marx
patent: 3545566 (1970-12-01), Frolunda

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