Acoustics – Sound-modifying means – Muffler – fluid conducting type
Reexamination Certificate
2007-07-11
2010-06-01
Donels, Jeffrey (Department: 2832)
Acoustics
Sound-modifying means
Muffler, fluid conducting type
C181S204000, C181S205000, C296S193060
Reexamination Certificate
active
07726442
ABSTRACT:
The present invention relates to an acoustic baffle device for sealing a cavity of a vehicle body at a predetermined cross section of the cavity, comprising a piece of sealing material that is formed in a shape corresponding to but being smaller than the shape of the cross section of the cavity. The acoustic baffle device of the invention is characterized in having a flap assembly having a lower neck defining a passage for a flexible tube or a similar device, said lower neck having a flap secured in closed position by a locking device and being connected preferably to the lower end of the lower neck through means that permit the reversible opening of the above-defined passage. Furthermore, the present invention relates to a flap assembly useful for such an acoustic baffle device, and to a process for sealing a cavity of a vehicle body at a predetermined cross section of the cavity.
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Donels Jeffrey
Oliff & Berridg,e PLC
Phillips Forrest M
Sika Technology AG
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