Open center turbine

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FIG. 1 is a perspective view of the invention.

FIG. 2 is a front view of the invention, the rear view being identical; and,

FIG. 3 is a left side view of the invention, the right side view, top view and bottom view being identical.


The ornamental design for an open center turbine, as shown and described.

Referenced Cited
U.S. Patent Documents
D273579 April 24, 1984 Martin et al.
D312686 December 4, 1990 Weber
D419518 January 25, 2000 Harrison
Patent History
Patent number: D543495
Type: Grant
Filed: Aug 1, 2006
Date of Patent: May 29, 2007
Inventor: Herbert L. Williams (East Palatka, FL)
Primary Examiner: Marcus A. Jackson
Attorney: Thomas C. Saitta
Application Number: 29/264,025