发明名称 HYDRAULIC JACK
摘要 A hydraulic jack has body inside which piston is placed with return mechanism, this has spring installed in the lower part of the piston, this is supported by means of threading provided on the piston and nut. Return mechanism of the piston has a set of disc springs with angle of inclination of walls of those not less than 10 DEGREE . Between facets of the disc springs additional facet is arranged, at angle not larger than 10 DEGREE , to axis of the spring, its top is placed at end of wall and divides its horizontal projection to equal parts, with account of projection of the outer facet.
申请公布号 UA26249(U) 申请公布日期 2007.09.10
申请号 UA20070005061 申请日期 2007.05.08
申请人 发明人
分类号 F15B15/02 主分类号 F15B15/02
代理机构 代理人
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