Aeration butterfly valve
Latest Bulk Tank Inc. Patents:
Description
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
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)