Butterfly valve

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Description

FIG. 1 is a top plan view of a butterfly valve, showing my new design;

FIG. 2 is a front elevational view thereof, the rear side being a mirror image thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a left side elevational view thereof; and,

FIG. 5 is a right side elevational view thereof.

Referenced Cited
U.S. Patent Documents
D25720 June 1896 Lunken
D190350 May 1961 Anderson et al.
D251255 March 6, 1979 Hansen et al.
D291723 September 1, 1987 Kemp
D292933 November 24, 1987 Kemp
Patent History
Patent number: D410070
Type: Grant
Filed: Feb 3, 1998
Date of Patent: May 18, 1999
Inventor: Takamasa Hattori (Sennan-gun, Osaka)
Primary Examiner: Alan P. Douglas
Assistant Examiner: Robin V. Taylor
Law Firm: Nikaido, Marmelstein, Murray & Oram LLP
Application Number: 0/83,034
Classifications
Current U.S. Class: Gate Or Butterfly Type (D23/244)
International Classification: 2301;