Lightweight valve
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United States of America Patent
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Issued Date -
Jan 12, 2006
app pub date -
Mar 4, 2003
filing date -
Mar 5, 2002
priority date (Note) -
Abandoned
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Abstract
The invention relates to a lightweight valve that consists of a valve base, the latter comprising a valve stem and a hollow valve cone, and a valve head cover, whereby the valve base is linked with the valve head cover by means of a material-displacing welding method. A weight-reducing cavity is defined between the valve cone and the valve head cover in the assembled state of the valve, said cavity being provided with a stability-enhancing support structure. Suitable welding methods are projection welding, capacitor discharge welding and friction welding.
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