Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Blade received in well or slot
Reexamination Certificate
2007-04-12
2010-10-05
Edgar, Richard (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Blade received in well or slot
Reexamination Certificate
active
07806662
ABSTRACT:
The blade retention system comprises an annular sealing plate and a plurality of spaced-apart blade retention tabs having opposite first and second ends and a radially-orientated corrugated profile. The first ends of the tabs are connected to a first side face of the annular sealing plate. Each tab is configured and disposed to be inserted through a bottom portion of a respective one of the blade retention slots when the first side face of the sealing plate is positioned against one of the side faces of the rotor disc and covers an end side of the blade retention slots. The second end of each tab extends beyond the other of the side faces of the rotor disc and is bent to secure the annular sealing plate with reference to the rotor disc.
REFERENCES:
patent: 2761648 (1956-09-01), Purvis
patent: 2786648 (1957-03-01), Ledwith
patent: 2828942 (1958-04-01), McCullough et al.
patent: 2847187 (1958-08-01), Murphy
patent: 2928651 (1960-03-01), Turnbull
patent: 2971744 (1961-02-01), Szydlowski
patent: 3076634 (1963-02-01), Boyle et al.
patent: 3077811 (1963-02-01), Moore
patent: 3248081 (1966-04-01), Bobo et al.
patent: 3598503 (1971-08-01), Muller
patent: 3700354 (1972-10-01), Memery
patent: 4326835 (1982-04-01), Wertz
patent: 4781534 (1988-11-01), Ferleger
patent: 5411369 (1995-05-01), Bouchard
patent: 5431543 (1995-07-01), Brown et al.
patent: 5518369 (1996-05-01), Modafferi
patent: 5984639 (1999-11-01), Gekht et al.
patent: 6109877 (2000-08-01), Gekht et al.
patent: 6533550 (2003-03-01), Mills
patent: 6837686 (2005-01-01), Di Paola et al.
patent: 05209536 (1993-08-01), None
Di Paola Franco
Gekht Eugene
Edgar Richard
Ogilvy Renault LLP
Pratt & Whitney Canada Corp.
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