发明名称 Air pump with a hidden extension tube
摘要 An air pump is provided with an outer tube, a piston sealingly and slidably movable in the outer tube, an operating rod securely engaged with the piston and slidably received within the outer tube, a plug securely inserted into one end of the outer tube and allowing the operating rod to be slidably extending therethrough and an extension tube extending out from the other end of the outer tube. The operating rod has a channel adapted to slidably receive the extension tube therein. Therefore, when the extension tube is not in use, the extension tube is able to be received within the channel of the operating rod and the extension tube is able to be drawn out from the operating rod when in use to inflate a inflatable product.
申请公布号 US6017201(A) 申请公布日期 2000.01.25
申请号 US19980118562 申请日期 1998.07.17
申请人 YANG, HSI-KUNG 发明人 YANG, HSI-KUNG
分类号 F04B25/00;F04B33/00;(IPC1-7):F04B39/00 主分类号 F04B25/00
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