Appeal No. 95-4237
Application 07/887,002
of a series of small openings in the body just downstream from
the surface disturbance in a low pressure zone 3, and an
interconnection defined by quieting chambers 8, 8’, flow
channel 2 and throttle valve 7 for interconnecting the inlet
and outlet sections. In operation, a portion of the boundary
layer flow upstream of the surface disturbance is drawn off
through the suction section 6, passes through the chamber 8,
throttle valve 7, flow channel 2 and chamber 8’, and is blown
out the blowing section 6’. The throttle valve is stated to
control the flow quantity through the channel 2 (column 4,
lines 47-49). “The transport of boundary material layer
through the flow channel 2 is assured due to the pressure
differential )C between the suction inlet zone 4 and the blow
p
outlet zone 3” (column 4, lines 49-52).
In rejecting claim 1 as being anticipated by Lurz, the
examiner has found, and appellants have not disputed, that (1)
the inlet and outlet sections 6, 6’ constitute a porous outer
skin, (2) the inner surface of the channel 2 constitutes a
solid inner surface, (3) the flow channel 2 itself constitutes
a plenum separating the porous outer skin from solid inner
surface, and (4) the throttle valve 7 constitutes a
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Last modified: November 3, 2007