On Aug 6, 2006, at 3:13 PM, Howard Winter wrote: > a hydraulic accumulator consists of a piston in a vertical > cylinder on top of a column of hydraulic fluid, with a heavy > weight resting on it. Are we still talking about transportation? "Heavy weight" and "mobile" don't mix very well... BillW -- http://www.piclist.com PIC/SX FAQ & list archive View/change your membership options at http://mailman.mit.edu/mailman/listinfo/piclist