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US 7,111,724 B2Granted
Fluid operated self aligning roller
AssigneeUltra Design and Engineering, LLC
InventorJames J. Donnenhoffer
Life of this patent
Estimating the term…
Abstract
A pressurized bladder system is associated with a first roller. In one embodiment, the conveyor belt extends around the roller which is automatically centered by the bladder. In alternate embodiments, the first roller is positioned adjacent an impression roller with the bladder operable to control the positioning of the first roller relative to the impression roller.
Claims6
A liquid applicator comprising:
- a first rotatably mounted roller with a first cylindrical surface;
- a second rotatably mounted roller with a second cylindrical surface positioned adjacent said first cylindrical surface forming an liquid receiving area;
- an axle having a longitudinal axis in a first position with said axle extending through said second roller, said axle having movably mounted opposite first and second ends to allow said axle to move relative to said first roller and allow said axle to skew moving said first axis from said first position to a second position;
- and,
- a first pressurizable bladder extending between said second roller and said axle and having a constant internal pressure to urge said second roller against said first roller at a constant pressure even though said axle and axis moves between said first position and said second position.
2 more elements
Dependencies are inferred from the claim text.