Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate
2011-04-19
2011-04-19
Martin, Edgardo San (Department: 2832)
Acoustics
Sound-modifying means
Muffler, fluid conducting type
C181S211000, C181S228000, C181S243000, C181S250000, C181S268000, C181S272000
Reexamination Certificate
active
07926615
ABSTRACT:
An exhaust-noise attenuation muffler includes two half-shells, each including an inner shell and an outer shell which are made through deep drawing of a sheet metal blank which can have a thickness between 0.3 mm and 0.5 m. The inner shell or the outer shell is provided with an embossment. After placing the inner shells in corresponding ones of the outer shells to form half-shells, two complementing half-shells are joined together.
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Smatloch Christian
Van Den Eijkel Pieter
Benteler Automobiltechnik GmbH
Day Ursula B.
Feiereisen Henry M.
Martin Edgardo San
Russell Christina
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