IN June 2001, a Marietta, Ga., worker was using his feet to tamp down cardboard inside a compactor when his feet became caught in the cardboard and he was pinned inside the machine. He was unable to ...
In most lip seals, increasing fluid pressure increases lip-contact pressure. In a properly designed and installed seal, the lip rides on a thin film of lubricant. Because the film does the sealing, ...
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