Appeal No. 96-0001
Application No. 08/034,532
the maximum that may adhere to the blade, the excess falls off
in small pieces onto the drum surface as it rotates. These
small pieces are subsequently carried by the rotating drum and
are recombined with fresh material to be applied to the
surface of the drum. The finished product containing such
recombined particles is unacceptable in appearance and, in the
case of food stuffs, has an undesirable flavor.
The problem with deposit formation on the doctor blades
of Eolkin was resolved by spraying water on the rear side of
the doctor blade adjacent to the drum where build up of
particles occurs. Water spray prevents build up on the back
side of the doctor blade and appears to keep the drum surface
clean (See column 1, lines 58-68). The apparatus used to
supply the water supply comprises a water header disposed
longitudinally and coextensive with the drying drums adjacent
the doctor blades. The header assembly comprises a plurality
of spaced apart spray nozzles in fluid communication with the
headers and positioned to direct a water spray on the side
opposite the cutting edge of the doctor blade (See column 2,
lines 3-10). In Figure 1, the spraying nozzles 24, and 25 are
positioned to spray downwardly towards the back sides of the
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Last modified: November 3, 2007