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US 2008/0163997 A1Published application
Spring Doctor
AssigneeRuntech Systems Oy
InventorKimmo Loippo
Life of this patent
Estimating the term…
Abstract
A spring doctor, particularly for use for cleaning the surface of rolls (2), used in the and including a blade (8) that is essentially the width of the roll (2) being cleaned, and which is attached to a blade holder (1). In the device, there are operating means (for example, 6, 7) for creating the desired pressure of the doctor blade against the roll. Longitudinally, the blade (8) is curved for at least part of its length.
Claims8
A spring doctor for cleaning the rolls of a paper machine during operation comprising:
- a blade that is essentially the width of a roll being cleaned, and which is attached to a blade holder;
- and
- operating means for creating a desired pressure of said blade against the roll, wherein said blade is manufactured from a composite material formed of a matrix and a reinforcement, in which the reinforcement is formed of a fibrous material and that, in operation, said blade is convex in a direction outwards from the roll.
Dependencies are inferred from the claim text.