Butterfly valve handle extension
Latest Bulk Tank, Inc. Patents:
- Vacuum filter assembly for cleansing air for use in transfer of bulk, granular material as in conveying vehicles
- Pressure and heat molded polymer tube with interlocking grommet
- Alternative bottom drop and straight tee discharge from bulk tank having various extensions for automatic and manual operations of the tee valve
- Unload elbow with spherical wear pocket
- Filter guide ring
Description
Claims
The ornamental design for the butterfly valve handle extension, as shown and described.
Patent History
Patent number: D678475
Type: Grant
Filed: May 3, 2011
Date of Patent: Mar 19, 2013
Assignee: Bulk Tank, Inc. (Park Hills, MO)
Inventor: David E. Sisk (St. Francois, MO)
Primary Examiner: Robin V Webster
Application Number: 29/373,620
Type: Grant
Filed: May 3, 2011
Date of Patent: Mar 19, 2013
Assignee: Bulk Tank, Inc. (Park Hills, MO)
Inventor: David E. Sisk (St. Francois, MO)
Primary Examiner: Robin V Webster
Application Number: 29/373,620
Classifications
Current U.S. Class:
Valve Or Body Therefor (D23/233)