Low pressure fan with Y-shaped blades

Details Low pressure fan with Y-shaped blades Low pressure fan with Y-shaped blades

2006-03-21

2006-03-21

Look, Edward K. (Department: 3745)

Fluid reaction surfaces (i.e., impellers)

Having clutch or brake means

C416S189000, C416S195000, C416S22700R, C416S23100A

Reexamination Certificate

active

07014425

ABSTRACT:
A fan10includes a central hub14, an outer ring structure18, and a plurality of fan blades12. Each blade is of generally Y-shaped configuration having first and second separate branches12a,12b, respectively, coupled to the hub14and merging with a third branch12c. The third branch12cis coupled to the ring structure18at a tip16of the blade18.

REFERENCES:
patent: 1345055 (1920-06-01), Willour
patent: 5221187 (1993-06-01), Lorea et al.

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