Method for manufacturing an exhaust element of an exhaust...

Metal working – Method of mechanical manufacture – Muffler – manifold or exhaust pipe making

Reexamination Certificate

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Reexamination Certificate

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07992301

ABSTRACT:
The invention relates to a method for manufacturing an exhaust element of an exhaust line of a vehicle with a heat engine. The exhaust element includes a box having, internally, at least one compartment and at least one tube extending at least partly inside such a compartment. The method includes inserting sound-insulation into at least one such compartment. The insertion is ensured through injection into such a compartment through an opening in the tube from the inside of the tube. The invention also relates to an exhaust element obtained by implementing this method, including forming a box with at least one compartment containing sound-insulation and at least one tube extending at least partly inside at least one such compartment, the tube having an opening provided for in the body of the tube.

REFERENCES:
patent: 5783782 (1998-07-01), Sterrett et al.
patent: 6158547 (2000-12-01), Ackermann et al.
patent: 6412596 (2002-07-01), Brandt et al.
patent: 6543576 (2003-04-01), Cofer et al.
patent: 6883558 (2005-04-01), Jander
patent: 7077922 (2006-07-01), Brandt et al.
patent: 2008/0290547 (2008-11-01), Kashikar et al.
patent: 2008/0292739 (2008-11-01), Kashikar et al.

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