Method of making impellers for cross-flow fans

Details Method of making impellers for cross-flow fans Method of making impellers for cross-flow fans

1976-04-06

1977-08-16

Lanham, C.W.

Metal working

Means to assemble or disassemble

Puller or pusher means, contained force multiplying operator

113116D, B23P 1500, B21D 5300, B23P 1100

Patent

active

040415937

ABSTRACT:
A rotor for a cross-flow blower has narrow elongated blades fixed in slots in the peripheral portions of a plurality of parallel discs spaced from one another along the rotor axis. The blades have curved cross sections, and each has creased portions received in the slots in the discs. The creased portions are formed to have supporting and stabilizing engagement with the opposite side edges of the slots and with opposite face portions of the discs adjacent to the slots.

REFERENCES:
patent: 1657758 (1928-01-01), Lum
patent: 2496179 (1950-01-01), Schwarz
patent: 3156408 (1964-11-01), Whitenack, Jr.
patent: 3262637 (1966-07-01), Sprouse et al.
patent: 3385511 (1968-05-01), Wentling
patent: 3816023 (1974-06-01), Shaver
patent: 3854844 (1974-12-01), Ranz

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