Anti-windmilling device

Details Anti-windmilling device Anti-windmilling device

1998-03-11

1999-07-13

Ryznic, John E.

Fluid reaction surfaces (i.e., impellers)

Having clutch or brake means

A47C 774, B63H 100

Patent

active

059217537

ABSTRACT:
An anti windmilling device 10 for fan blades 103 including a housing member 20 adapted to be secured to the wire grid 101 of a fan 104. The housing member 20 rotatably supports a sail member 40 mounted on a shaft element 42 dimensioned to engage a portion 28 of the housing member 20. The sail member 40 is normally spring biased into the arc of rotation of the fan blades 103 for preventing the unwanted rotation of the blades 103 when the fan 104 is not energized.

REFERENCES:
patent: 3575527 (1971-04-01), Watanabe et al.
patent: 4642029 (1987-02-01), Cedoz
patent: 4664596 (1987-05-01), Wood
patent: 5428965 (1995-07-01), Grunwald et al.
patent: 5497632 (1996-03-01), Robinson
patent: 5562418 (1996-10-01), Agius

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