Exhaust system baffling apparatus

Details Exhaust system baffling apparatus Exhaust system baffling apparatus

2008-05-20

2008-05-20

Donovan, Lincoln (Department: 2837)

Acoustics

Sound-modifying means

Muffler, fluid conducting type

C181S280000

Reexamination Certificate

active

07374017

ABSTRACT:
An exhaust system baffling apparatus is provided. The apparatus includes a tube with at least one end that is not open. The apparatus further includes a plurality of C-shaped flanges in surrounding relation about the tube. The outer edges of the flanges have a contour which generally corresponds to a contour of an inner surface of a wall of an exhaust pipe. Opposed portions of the flanges adjacent the slits of the flanges are spread apart along the tube in a longitudinal direction. In addition, the opposed portions of the flanges adjacent the slits are angled in opposite directions and extend radially from the tube at a non-perpendicular angle with respect to the tube. At least two of the flanges include brackets adjacent the outer edges of the flanges, wherein the brackets are adapted for securing the apparatus to an interior portion of the exhaust pipe.

REFERENCES:
patent: 1157256 (1915-10-01), Schmitt
patent: 1388107 (1921-08-01), Ernst
patent: 1957012 (1934-05-01), Hayncs
patent: 4667770 (1987-05-01), DeVane
patent: 4683978 (1987-08-01), Venter
patent: 6006859 (1999-12-01), Hussaini

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