Diaphragm valve

The ornamental design for a diaphragm valve, as shown.

FIG. 1 is a top perspective view of a diaphragm valve showing my new design;

FIG. 2 is a bottom perspective view thereof;

FIG. 3 is a bottom plan view thereof;

FIG. 4 is a cross sectional view taken on line 4--4 of FIG. 3 and;

FIG. 5 is a cross sectional view taken on line 5--5 of FIG. 3.

Patent	Priority	Assignee	Title
9109707,	Oct 19 2009	Parker Intangibles, LLC	Seal assembly
D290640,	Mar 19 1984	Frigoscandia Contracting AB	Valve diaphragm
D300554,	Nov 26 1984	Sekusui Kagaku Kogyo Kabushiki Kaisha	Diaphragm from a diaphragm valve
D316292,	Nov 21 1988		Replacement diaphragm for an irrigation system valve
D631945,	Nov 23 2009	Goyen Controls Co Pty Limited	Valve diaphragm
D636059,	Nov 23 2009	Goyen Controls Co Pty Limited	Valve diaphragm

Executed on	Assignor	Assignee	Conveyance	Frame	Reel	Doc
Apr 02 1980		Asahi Yukizai Kogyo Kabushiki Kaisha	(assignment on the face of the patent)

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