Device for sealing a gap between two relatively moving surfaces
AssigneeTrutzschler GmbH & Co. KG
InventorsBernd Windges, Ferdinand Leifeld
Life of this patent
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Abstract
A seal unit for sealing a clearance between relatively movable first and second machine components includes a low-friction, wear-resistant sealing element having a sealing face for sealingly engaging a surface of the first machine component; a spring having a soft spring characteristic and being at least indirectly in engagement with the second machine component and a reverse face of the sealing element for resiliently urging the sealing face of the sealing element against the surface of the first machine component.
Claims11
In a fiber processing machine including a rotary fiber processing roll having a substantially radial end face;
- a stationary machine wall component having a wall surface facing said radial end face and being at a clearance therefrom;
- and a seal unit situated in said clearance for providing a seal between the wall surface and the radial end face;
- the improvement in said seal unit comprising
- (a) an annular, low-friction, wear-resistant sealing element made of felt and having a sealing face and a reverse face opposite the sealing face;
- the sealing element projecting axially beyond said radial end face;
- and
- (b) a spring made of an annulus of axially resiliently compressible plastic material and having a soft spring characteristic and being in a face-to-face, force-transmitting engagement with said reverse face.
Dependencies are inferred from the claim text.