Cover plates for tank heads

Details Cover plates for tank heads Cover plates for tank heads

1979-08-09

1981-10-20

Freeh, William L.

Fluid reaction surfaces (i.e., impellers)

Specific working member mount

Welded, cemented or fused

291593, 291568, F04D 2918, F04D 2932

Patent

active

042957893

ABSTRACT:
The axial flow fan includes a hub, an annular rim, at least one structural disc welded to and extending between the hub and the rim and a plurality of blades extending outward from the rim. The improvement comprises at least one nonstructural cover plate which is welded to and extends between the hub and the peripheral edge of the rim. Generally there will be a nonstructural cover plate at each end of the hub and rim with the cover plates being of thinner cross section than the structural disc. The cover plates are normally welded along the terminal edge surfaces of the rim as well as the hub.

REFERENCES:
patent: 2649243 (1953-08-01), Stacker
patent: 3991703 (1976-11-01), Faust
patent: 4040769 (1977-08-01), Britz

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