Metal working – Method of mechanical manufacture – Prime mover or fluid pump making
Reexamination Certificate
2006-10-03
2009-02-10
Bryant, David P (Department: 3726)
Metal working
Method of mechanical manufacture
Prime mover or fluid pump making
C029S557000, C216S056000, C216S100000, C277S355000, C277S412000
Reexamination Certificate
active
07487588
ABSTRACT:
In a process for producing leaves (20, 20′) for a leaf seal, in particular as a seal for a gas turbine, which leaves (20, 20′) are laterally delimited by a peripheral edge contour and have regions of different thicknesses (d1, d2), a simplification, without sacrificing precision, is achieved by virtue of the edge contour of the leaves (20, 20′) being cut out of a metal sheet (28) by an etching process and the regions of different thicknesses (d1, d2) also being produced simultaneously as part of the etching process.
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Hogg Simon Ian
Rhodes Nigel Anthony
Schoenfeld Erwin
Afzali Sarang
ALSTOM Technology Ltd.
Bryant David P
Cermak Adam J.
Cermak Kenealy Vaidya & Nakajima LLP
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