USD202701S - Check valve - Google Patents

Description

Unitd States Patent Ofifice 202,701

Patented Nov. 2, 1965 CHECK VALVE Roy Forrest Davis, Jr., 818 E. 22nd Court, Des Moines, Iowa Filed Jan. 10, 1964, Ser. No. 78,149

Term of patent 14 years (Cl. DIG-1) Des. 202,701

PAGE 2 FIG. 1 is a perspective view showing the new design for a check valve,

FIG. 2 is an elevational view of this check valve,

FIG. 3 is a perspective view from the opposite side shown in FIG. 1,

FIG. 4 is an elevational view from the opposite side shown in FIG. 2,

FIG. 5 is a cross-sectional view taken on the line 55 of FIG. 2 and showing the relative position of a pipe structure in light line for illustration purposes only,

FIG. 6 is a cross-sectional view similar to FIG. 4 but showing a modification of the yoke portion of the valve, and

FIG. 7 is a modified form of the check valve shown in The ornamental design for a check valve, as shown and described.

References Cited by the Examiner UNITED STATES PATENTS D. 196,723 10/63 Davis Dl61 D. 196,724 10/63 Davis Dl6-l WALLACE R. BURKE, Primary Examiner.

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