Check valve

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Description

FIG. 1 is an isometric view of the claimed design.

FIG. 2 is a front view of the claimed design.

FIG. 3 is a right side view of the claimed design.

FIG. 4 is a left side view of the claimed design.

FIG. 5 is a rear view of the claimed design.

FIG. 6 is a top view of the claimed design; and,

FIG. 7 is a bottom view of the claimed design.

The broken lines showing the pattern along the circumference of the surface on the rear view of the check valve form no part of the claimed design.

Claims

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

Referenced Cited
U.S. Patent Documents
7758017 July 20, 2010 Sisk et al.
D650470 December 13, 2011 Fujiyama
D678474 March 19, 2013 Sisk
20060237680 October 26, 2006 Denike et al.
20090101857 April 23, 2009 Wilson et al.
20100006051 January 14, 2010 Jeon
Patent History
Patent number: D701589
Type: Grant
Filed: Sep 13, 2011
Date of Patent: Mar 25, 2014
Assignee: Praher Kunststofftechnik GmbH (Schwertberg)
Inventors: Winfried Praher (Perg), Rainer Pühringer (Steyregg-Plesching)
Primary Examiner: Cynthia Ramirez
Application Number: 29/401,629
Classifications
Current U.S. Class: Valve Or Body Therefor (D23/233)