Centrifugal pump

- Koshin, Ltd.

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FIG. 1 is a front elevational view of a centrifugal pump showing my new design;

FIG. 2 is a rear elevational view thereof;

FIG. 3 is a top plan view thereof;

FIG. 4 is a bottom plan view thereof;

FIG. 5 is a right side view thereof;

FIG. 6 is a left side view thereof;

FIG. 7 is a front perspective view thereof; and,

FIG. 8 is a rear perspective view thereof.


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

Referenced Cited
U.S. Patent Documents
4202654 May 13, 1980 Marlow
4419048 December 6, 1983 Pilachowski et al.
6287074 September 11, 2001 Chancellor
D455440 April 9, 2002 Yorulmazoglu et al.
6375437 April 23, 2002 Nolan
Patent History
Patent number: D503411
Type: Grant
Filed: Jul 22, 2003
Date of Patent: Mar 29, 2005
Assignee: Koshin, Ltd.
Inventor: Youichi Fujiwara (Nagaokakyo)
Primary Examiner: Ralf Seifert
Attorney: Saidman DesignLaw Group
Application Number: 29/186,754
Current U.S. Class: Pump Or Compressor (D15/7)