专利名称：PISTON ROD发明人：D.A. MCDONALD申请号：AU5909980申请日：19800606公开号：AU5909980A公开日：19811210
摘要：The end of a piston rod remote from the piston 3 is provided with a part-spherical cavity 7 in which is received a hardened steel ball 8. When the piston andcylinder is installed in a machine tool, the ball is also received in a cavity 12, allowing thepiston and cylinder to rock. The joint is held together by a compression spring (23, Fig. 3not shown).
申请人：POLYESTER INJECTION PTY. LTD.
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