Sound insulating device designed to be mounted in a tubular...

Details Sound insulating device designed to be mounted in a tubular... Sound insulating device designed to be mounted in a tubular...

2006-07-18

2006-07-18

Coletta, Lori L. (Department: 3612)

Land vehicles: bodies and tops

Bodies

Structural detail

C296S187050, C296S203030, C296S205000, C277S645000, C428S099000, C428S304400

Reexamination Certificate

active

07077461

ABSTRACT:
A sound insulation device for mounting in a tubular part, in particular a motor vehicle bodywork part, the device comprising a partitioning insert, a cord of a composition that is thermally expandable so as to form a foam, said cord being fitted to the periphery of the insert, retaining means for holding the cord on the insert prior to expansion of the cord, and means for encouraging the cord to expand towards the inside wall of the tubular part, wherein the cord is formed by being extruded in rectilinear manner without any particular shaping, and wherein the cord retaining means are integrally molded with the partitioning insert and also serve to shape the extruded cord around the periphery of the partitioning insert.

REFERENCES:
patent: 5642914 (1997-07-01), Takabatake
patent: 5752737 (1998-05-01), Heldt et al.
patent: 5755486 (1998-05-01), Wycech
patent: 5806915 (1998-09-01), Takabatake
patent: 5806919 (1998-09-01), Davies
patent: 5884962 (1999-03-01), Mattingly et al.
patent: 6247287 (2001-06-01), Takabatake
patent: 6419305 (2002-07-01), Larsen
patent: WO 99/37506 (1999-07-01), None
patent: WO 00/03894 (2000-01-01), None
patent: WO 01/83206 (2001-11-01), None

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