Measuring and testing – Fluid flow direction
Reexamination Certificate
2005-05-24
2005-05-24
Lefkowitz, Edward (Department: 2855)
Measuring and testing
Fluid flow direction
C073S170070, C073S170120, C073S861850
Reexamination Certificate
active
06895812
ABSTRACT:
The present invention relates to a cup anemometer having at least two cups (1) each attached to an arm (2) of a hub (3) on a rotary shaft. By cup is meant a generally seen cup-shaped body with a concave inner surface (6) and a convex outer surface (7) which meet at the opening of the cup. The opening of the cup is directed essentially along the tangent to the rotational path of the cups. The invention is based on the fact that the cups are truncated at their opening by means of three cuts (14, 15, 16) which are esentially located in three planes that are parallel with the tangent of the rotational path of the cups at the opening and that, projected on a fourth plane (9) having the tangent as normal, essentially form a triangle. The cups are attached to their arms (2) at one of the three corners (10).
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Allen Andre
Jacobson & Holman PLLC
Lefkowitz Edward
LandOfFree
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