Integral connection for plastic water pump impeller

Details Integral connection for plastic water pump impeller Integral connection for plastic water pump impeller

1987-11-27

1989-05-23

Garrett, Robert E.

Fluid reaction surfaces (i.e., impellers)

Specific blade structure

Coating, specific composition or characteristic

416229R, 416244R, 4152171, 4152161, 403375, 403383, F01D 530

Patent

active

048325732

ABSTRACT:
An integral connection for a plastic water pump impeller includes a molded non circular plug and inwardly facing, radially flexible cylindrical wall in the center of the impeller, and a matching female socket and matching outwardly facing cylindrical wall on the end of the shaft. A rib on the impeller wall and groove in the shaft wall pop fit together and flex the impeller wall out as the impeller and shaft are push pitted together. The socket and plug prevent relative turning, and the rib and groove prevent the impeller from pulling off of the shaft.

REFERENCES:
patent: 2652191 (1953-09-01), Buchi
patent: 2836877 (1958-06-01), Hannahan
patent: 3145912 (1964-08-01), Weis
patent: 3303791 (1967-02-01), Doble
patent: 3319939 (1967-05-01), Rogenski
patent: 3360051 (1967-12-01), Trouilhet
patent: 3819294 (1974-06-01), Honnold et al.
patent: 3872691 (1975-03-01), Hildebrandt
patent: 4157225 (1979-06-01), Levine
patent: 4557672 (1985-12-01), Levine
European Pat. #64,767, Nov. 1982, Murohushi et al.

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