Non-return valve

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Description

FIG. 1 is a top, perspective view of the non-return valve;

FIG. 2 is a side elevational view of the non-return valve shown in FIG. 1;

FIG. 3 is a top plan view of the non-return valve shown in FIG. 1;

FIG. 4 is a side elevational view of the non-return valve shown in FIG. 1;

FIG. 5 is a cross-sectional view of the non-return valve shown in FIG. 1; and,

FIG. 6 is a bottom plan view of the non-return valve shown in FIG. 1.

Any portions shown in dashed or broken lines are included for illustrative purposes only and form no part of the claimed design.

Claims

The ornamental design for a non-return valve, as shown and described.

Referenced Cited
U.S. Patent Documents
D200031 January 1965 Parfonry
D362295 September 12, 1995 Scheurer
7509948 March 31, 2009 DePayva et al.
D599434 September 1, 2009 Stenberg
D631945 February 1, 2011 Shorey et al.
D636059 April 12, 2011 Shorey et al.
D639938 June 14, 2011 Blanco
D682989 May 21, 2013 Eagle
Patent History
Patent number: D715404
Type: Grant
Filed: Jun 18, 2013
Date of Patent: Oct 14, 2014
Inventors: Peter Clarke (Nottingham), Edit Clarke (Nottingham), Andrea Clarke (Nottingham)
Primary Examiner: Cynthia Ramirez
Application Number: 29/458,349
Classifications
Current U.S. Class: Valve Or Body Therefor (D23/233)