Fluid reaction surfaces (i.e. – impellers) – Specific blade structure – Hollow
Reexamination Certificate
2011-08-09
2011-08-09
Edgar, Richard (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific blade structure
Hollow
Reexamination Certificate
active
07993106
ABSTRACT:
A core, for use in a casting mould to form a cavity in a cast component such as a blade or vane of a gas turbine engine. The core has a relatively fragile thin-walled region. A bead is formed along a lateral edge of the thin-walled portion in order to reduce cracking or other damage in the thin-walled portion.
REFERENCES:
patent: 2972805 (1961-02-01), Turner et al.
patent: 5947181 (1999-09-01), Davis
patent: 6979173 (2005-12-01), Tiemann
patent: 2003/0138322 (2003-07-01), Boury et al.
patent: 2006/0249275 (2006-11-01), Judet
patent: 2007/0020100 (2007-01-01), Beeck et al.
patent: 2007/0181283 (2007-08-01), Judet
patent: 0 818 256 (1998-01-01), None
patent: 1 634 665 (2006-03-01), None
patent: 1 637 253 (2006-03-01), None
patent: 1 772 210 (2007-04-01), None
patent: 2 096 523 (1982-10-01), None
patent: WO 94/12767 (1994-06-01), None
Search Report mailed Mar. 5, 2008, completed Feb. 26, 2008 in European Application No. Ep 07 07 9509.
Edgar Richard
Oliff & Berridg,e PLC
Rolls-Royce plc
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