Aeration butterfly valve

- Bulk Tank Inc.
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Description

FIG. 1 is a top view of the aeration butterfly valve of this invention;

FIG. 2 is a bottom view;

FIG. 3 is a left side view;

FIG. 4 is a right side view;

FIG. 5 is a front view; and,

FIG. 6 is a back view.

Claims

The ornamental design for the aeration butterfly valve, as shown and described.

Referenced Cited
U.S. Patent Documents
D158338 April 1950 Szitar
D191425 September 1961 Popp
D297354 August 23, 1988 Wirth
4770388 September 13, 1988 Carman
5052655 October 1, 1991 Ackroyd
5058622 October 22, 1991 Chitty et al.
D321928 November 26, 1991 Milo
5188335 February 23, 1993 Pettinaroli
D359343 June 13, 1995 Dawson
5598724 February 4, 1997 Primeau
D400970 November 10, 1998 Voo
D468806 January 14, 2003 Ripkey
6959909 November 1, 2005 Bancroft et al.
D588232 March 10, 2009 Giacomini
D624628 September 28, 2010 Haynes
D686298 July 16, 2013 Ching et al.
Patent History
Patent number: D711509
Type: Grant
Filed: Dec 26, 2012
Date of Patent: Aug 19, 2014
Assignee: Bulk Tank Inc. (Park Hills, MO)
Inventor: David E. Sisk (Bonne Terre, MO)
Primary Examiner: Cynthia Ramirez
Application Number: 29/442,171
Classifications
Current U.S. Class: Valve Or Body Therefor (D23/233)