High velocity fan

Fluid reaction surfaces (i.e. – impellers) – Protective screen or guard – Water or marine propellers

Patent

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Details

4151212, F01D 2500

Patent

active

060710799

ABSTRACT:
A high velocity fan for supplying forced air where the fan has a front grill with its air delivery area having aerodynamically formed spaced radial ribs that increase the velocity of the delivered air over the conventional round wire rib grill.

REFERENCES:
patent: 2950859 (1960-08-01), Kirk
patent: 5259726 (1993-11-01), Bacria

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