Spring devices – Vehicle – Comprising compressible fluid
Reexamination Certificate
2007-08-14
2007-08-14
Kramer, Devon (Department: 3683)
Spring devices
Vehicle
Comprising compressible fluid
C148S688000
Reexamination Certificate
active
10329825
ABSTRACT:
The invention relates to an air suspension piston, with the air suspension piston being tube shaped and being made of aluminium. The air suspension piston is formed by a longitudinal-seam welded tube made from an aluminum alloy, and the tube has been longitudinal-seam welded without any weld metal.
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Opitz Michael
Schulze Thorsten
Steimmel Franz
Wahner Frank
Kramer Devon
Proskauer Rose LLP
VAW Alutubes GmbH
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