Fluid reaction surfaces (i.e. – impellers) – With control means responsive to non-cyclic condition... – Impeller rotation speed responsive
Reexamination Certificate
2005-04-26
2008-09-02
Look, Edward (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
With control means responsive to non-cyclic condition...
Impeller rotation speed responsive
C416S051000
Reexamination Certificate
active
07419357
ABSTRACT:
An improved ram air turbine (RAT) prevents release of its turbine blades due an over-speed condition by detecting an over-speed condition with a trigger mechanism and rotating the blades to a fixed coarse pitch position with a release mechanism.
REFERENCES:
patent: 2874787 (1959-02-01), Battenberg et al.
patent: 2997109 (1961-08-01), Blackburn
patent: 4743163 (1988-05-01), Markunas et al.
patent: 7296970 (2007-11-01), Bannon et al.
Bannon David G.
Nohr Gary D.
Russ David E.
Seidel William E.
Hamilton Sundstrand Corporation
Look Edward
Mican Stephen G.
Wiehe Nathaniel
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