Fluid reaction surfaces (i.e. – impellers) – Specific working member mount – Adjustable
Reexamination Certificate
2007-03-20
2007-03-20
Look, Edward K. (Department: 3745)
Fluid reaction surfaces (i.e., impellers)
Specific working member mount
Adjustable
C416S20400A, C416S207000, C416S209000
Reexamination Certificate
active
11190066
ABSTRACT:
This device for mounting a propeller blade in a hub, of the type in which a blade base is mounted in rotation in a hub housing by means of at least two bearings and where a preloading device permitting axially preloading the two bearings comprises a holding ring mounted between one of the two bearings and hub so as to allow an axial displacement of ring relative to hub, in that holding ring is mounted rotatingly between bearing and hub by means of rolling elements and helical tracks arranged to drive an axial displacement of ring during rotation of this ring, means being provided to cause ring to rotate according to a predefined law.
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French Preliminary Search Report dated Mar. 2, 2005 (Examiner: Estrela y Calpe, J).
Look Edward K.
Ohlandt, Greeley, Ruggiero & Perle L.L.C.
Ratier-Figeac
White Dwayne J
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