地藏本愿经专利名称：Air bag jack
发明人：Stanley W. Widmer 申请号：US06/170867照手桃
宝宝出汗申请日：19800721
公开号：US04560145A不识好人心
公开日：
高考后留学计划>牧草种植
19851224
快乐的小青蛙专利内容由知识产权出版社提供
摘要：An air bag jack comprising an inflatable member made of a flexible material with a uniform thickness having a top ction and a plurality of lower annular ctions. The ctions quentially taper in diameter and have a ba diameter smaller than the ba diameter of the ction below forming a generally pyramidal shape enabling the ctions to collap within one another upon deflation into a compact form. The top and bottom annular ctions have the ability to conform to the object being supported and the surface of the terrain that is being ud. Further the top ction's top end wall has a concave surface preventing slippage during inflation. There are also a plurality of rings, one between each pair of adjacent ctions extending around the outside of the jack to provide annular support for the wall ction adjacently above. Each ring has a half-circle cross ctional configuration to prevent thinning of the inflatable member's wall in the area of junction between ctions. The jack is easily inflated by a 12 volt D.C. air pump powered from an automobile cigarette lighter.
申请人：WIDMER; STANLEY W.
九宫格日记代理机构：Kinney & Lange
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