Pump impeller

Description

FIG. 1 is the impeller viewed obliquely from above.

FIG. 2 is the impeller viewed obliquely from below.

FIG. 3 is the impeller viewed from front.

FIG. 4 is the impeller viewed from back.

FIG. 5 is the impeller viewed from right.

FIG. 6 is the impeller viewed from left.

FIG. 7 is the impeller viewed from above.

FIG. 8 is the impeller viewed from below.

FIG. 9 is a cross section taken along the line 9--9 of FIG. 7.

FIG. 10 is a cross section taken along the line 10--10 of FIG. 7.

FIG. 11 is a cross section taken along the line 11--11 of FIG. 7; and,

FIG. 12 is a cross section taken along the line 12--12 of FIG. 7.

The present article is an impeller provided in a pump. This impeller has two flow paths located to be symmetric about a central axis, including an inlet opening at the bottom as shown in FIG. 2, and outlets opening at the lateral side of the impeller as shown in FIGS. 3 and 4. The flow paths connect the inlet and the outlets.

Claims

CLAIM The ornamental design for a pump impeller, as shown and described.

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Inventors:	Tarui; Motonobu (Hyogo, JP), Enomoto; Junya (Hyogo, JP), Funasaka; Arata (Hyogo, JP)
Assignee:	ShinMaywa Industries, Ltd. (Hyogo, JP)
Appl. No.:	D/346,880
Filed:	November 6, 2009

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Current U.S. Class:	D15/7
Current International Class:	1502
Field of Search:	;D15/7-9 ;D23/231,232,225 ;417/410.1,359,415-416,234,321,265,405

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References Cited [Referenced By]

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U.S. Patent Documents

D27078	May 1897	Cahill et al.
D191687	October 1961	Wessels
D205691	September 1966	Ruliffson
D262538	January 1982	Erikson
D268112	March 1983	Sugiura
4666373	May 1987	Sugiura
D443281	June 2001	Sodergard
D514125	January 2006	Cook
D586826	February 2009	Cantrill et al.
D603878	November 2009	Chu
2005/0013688	January 2005	Nishi et al.

Foreign Patent Documents

	2006-291937		Oct 2006		JP
	1290072		Dec 2006		JP
	1290073		Dec 2006		JP
	1290074		Dec 2006		JP
	1290390		Dec 2006		JP
	1290391		Dec 2006		JP
	1295382		Mar 2007		JP
	1295624		Mar 2007		JP
	1315873		Nov 2007		JP
	1316218		Dec 2007		JP
	1316510		Dec 2007		JP
	1316511		Dec 2007		JP

Other References

Nishi, Yasuyuki et al., "Pump Impeller", U.S. Appl. No. 29/334,576, filed Mar. 27, 2009. cited by other . Nishi, Yasuyuki et al., "Pump Impeller", U.S. Appl. No. 29/334,577, filed Mar. 27, 2009. cited by other.

Primary Examiner: Seifert; Ralf
Attorney, Agent or Firm: Roberts Mlotkowski Safran & Cole, P.C. Cole; Thomas W.