Bladder with a constant contact region for cleaning a blanket cylinder
OwnerAvi-Ben Porat, Vladimir Ilic +1inventors
InventorsAvi-Ben Porat, Vladimir Ilic, John Marganski
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Abstract
A bladder for bringing and engaging a cleaning cloth into contact with a blanket cylinder. The bladder has a molded (extruded or machined) shape optimized to, when inflated, provide a contact surface elevated above the remainder of the bladder. When the bladder is not inflated, the central portion is elevated above the remainder. In addition, the device has improved contact characteristics, providing significant improvement in the consistency of contact surface with less sensitivity to pressure fluctuations between the cylinder and the bladder over prior art.
Claims24
An bladder for bringing a cleaning cloth into contact with a blanket cylinder and the bladder comprising:
- a central portion having a surface parallel to the blanket cylinder and elevated with respect to the bladder;
- and
- a portion adjacent to the central portion that causes the surface of the central portion to make the cleaning cloth contact the blanket cylinder in a consistent manner during a cleaning operation.
A bladder for use in an apparatus for cleaning the blanket cylinder of a printing press, the bladder comprising:
- a proximal end for providing constant contact to the blanket cylinder, while moving a cleaning fabric into contact with said blanket cylinder;
- a distal end functioning as a base;
- and
- a member, essentially vertical with respect to the proximal and distal ends, for creating a moment to hold the proximal end essentially constant during its contact with the blanket cylinder.
A bladder for cleaning a blanket cylinder, the bladder comprising:
- an elevated central portion for holding a cleaning cloth that is in consistent contact with the blanket cylinder when the bladder is inflated, regardless of variation in the inflation means;
- a mounting portion having flanges to affix the bladder to a manifold via clamps secured thereto;
- a flat portion adjacent to the mounting portions of the bladder;
- and
- an arcuate portion connected to the flat portion and the central portion for raising the central portion to provide a consistent contact region between the inflated bladder and the blanket cylinder.
Dependencies are inferred from the claim text.