发明名称 Hand-Held Tree Girdler
摘要 <p>In a discharge valve apparatus, a discharge port on a valve plate covered by a long thin discharge valve is formed in a elliptic shape as horizontal view whereby stress of the long thin discharge valve in longitudinal direction at its center is decreased and the fatigue strength of the valve is improved and reliability is high and the apparatus can be easily manufactured and the efficiency of the compressor is increased.</p>
申请公布号 CA2072790(A1) 申请公布日期 1993.12.31
申请号 CA19922072790 申请日期 1992.06.30
申请人 COTTER, JOEL M. 发明人 COTTER, JOEL M.
分类号 F04B39/10;F16K15/16;(IPC1-7):A01G23/00 主分类号 F04B39/10
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