USD218306S - Diaphragm valve - Google Patents

Description

United States Patent Office 218,306

Patented Aug. 11, 1970 DIAPHRAGM VALVE Walter Kreis, Neuhausen, and Paul Troesch, Schaifhausen, Switzerland, assignors to Georg Fischer Aktiengesellschaft, Schaffhausen, Switzerland, a corporation of Switzerland Filed June 24, 1969, Ser. No, 17,857

Claims priority, application Switzerland Feb. 3, 1969 7 Term of patent 14 years Int. Cl. 1323-01 US. Cl. D23-19 FIG. 1 is a perspective view of a diaphragm valve em- References Cited bodying our new design;

FIG. 2 is a front view thereof, the opposite front por- UNITED STATES PATENTS lion thereof being identical to that shown; 2O7,766 5/1967 Keane 1323-19 FIG. 3 is a side view thereof, as viewed from the left 2,277,395 3/1942 Franckof FIG. 2, the opposite side being identical to the side 230L820 8/1957 Greenshown;

FIG 4 is a top plan View thereof; and I WALLACE R. BURKE, Primary Examiner FIG. 5 is a bottom plan view thereof. 5 J MERCER, A sistant Examiner We claim:

The ornamental design for a diaphragm valve, as shown and described.

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