David K Barth

US Patent:

7121556, Oct 17, 2006

Filed:

Apr 7, 2004

Appl. No.:

10/819538

Inventors:

David Michael Barth - Livonia MI, US
Martin Novil - Northville MI, US
Ronald W. Wangerow - Novi MI, US

Assignee:

Freudenberg-NOK General Partnership - Plymouth MI

International Classification:

F02F 11/00
F16L 17/06
F16J 15/02

US Classification:

277596, 277608, 277615, 277644, 277649

Abstract:

A gasket is provided having a body including at least one service aperture and an integrally formed sealing bead portion. In an embodiment, the sealing bead portion includes a first outwardly extending bead and a first concave channel opposite the first outwardly extending bead. The first concave channel is defined by a second outwardly extending bead and a third outwardly extending bead. In an alternative embodiment, the sealing bead portion includes an annular sealing member molded to the body, and the annular sealing member is opposite an outwardly projecting sealing bead. In a second alternative embodiment, the sealing bead portion includes an internal chamber filled with a pressurized gas. In a third alternative embodiment, the sealing bead portion defines a chamber filled a polymeric material.