Impeller and sewage treatment pump including the same

Details Impeller and sewage treatment pump including the same Impeller and sewage treatment pump including the same

2004-06-30

2010-11-23

Look, Edward K. (Department: 3745)

Rotary kinetic fluid motors or pumps

Runner has spirally arranged blade or fluid passage

C415S206000, C416S177000, C416S18600A

Reexamination Certificate

active

07837431

ABSTRACT:
In an impeller11, an inlet portion and an outlet portion are provided at one end side and the other end side in the axial direction, respectively. An inlet29is formed in the lower part of the inlet portion, and an outlet is formed in the side face of the outlet portion. The inlet portion and the outlet portion are partitioned by a flange portion40. The impeller 11 includes a primary vane36and a secondary vane38. The primary vane36defines a spiral primary channel35that connects the inlet29and the outlet. The secondary vane38is formed in a shape that a part of the outer periphery of the outlet portion is gouged inward so as to define a secondary channel37connected to the primary channel35and extending circumferentially around the outer periphery.

REFERENCES:
patent: 1754992 (1930-04-01), Fabrin
patent: 1849127 (1932-03-01), Wood
patent: 2272469 (1942-02-01), Lannert
patent: 2396083 (1946-03-01), Chase
patent: 2655868 (1953-10-01), Lindau et al.
patent: 2741992 (1956-04-01), Glazebrook
patent: 2853019 (1958-09-01), Thornton
patent: 4575312 (1986-03-01), Erikson
patent: 4681508 (1987-07-01), Kim
patent: 5348444 (1994-09-01), Metzinger et al.
patent: 6837684 (2005-01-01), Ilves
patent: 1258635 (2002-11-01), None
patent: 42799 (1970-06-01), None
patent: 1274289 (1961-09-01), None
patent: 28-5840 (1950-04-01), None
patent: 57-40691 (1982-03-01), None
patent: 11-006496 (1999-01-01), None
Japanese Office Action “Notice of Reasons for Rejections” with Mailing date of Aug. 18, 2009 Patent Application No. 2003-277163 with English Translation.
Second Office Action mailed Jul. 25, 2008 in the corresponding Chinese patent application with translation.

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