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1. 发明授权

US06827673B2 Collapsible pogo stick 有权
标题翻译：可折叠的pogo棒
公开(公告)号：US06827673B2
公开(公告)日：2004-12-07
申请号：US09887553
申请日：2001-06-22
申请人： Robert Chen , Pinchieh Feng , Robert A. Hadley
发明人： Robert Chen , Pinchieh Feng , Robert A. Hadley
IPC分类号： A63B2508
CPC分类号： A63B25/08 , A63B2208/12
摘要： A pogo stick comprising a handlebar, a grip portion, and a footrest that is collapsible into a small volume for easy transportation and compact storage. The handlebar is provided with at least one elongate telescoping member, the grip portion is provided with removable grips, and the footrest is provided with pivotally mounted plates. The collapsible pogo stick incorporates a pneumatic spring of variable stiffness for accommodating users of different body weights. The pneumatic spring includes a pressure cylinder and a shaft extending out of the cylinder for engagement with the ground. The pneumatic spring includes a self-charging mechanism such that the cylinder may be charged without the use of an external pump.
摘要翻译：一种包括把手，抓握部分和脚蹬的弹弓，其可折叠成小体积以便于运输和紧凑的存储。车把设置有至少一个细长的伸缩构件，把手部分设置有可移除的把手，并且搁脚板设置有枢转安装的板。可折叠的浮标杆包含可变刚度的气动弹簧，用于容纳不同体重的使用者。气动弹簧包括压力缸和从气缸延伸的轴，用于与地面接合。气动弹簧包括自动充电机构，使得气缸可以在不使用外部泵的情况下进行充电。

2. 发明授权

US06619634B2 Self-chargeable pneumatic cylinder 有权
公开(公告)号：US06619634B2
公开(公告)日：2003-09-16
申请号：US09891872
申请日：2001-06-22
申请人： Robert Chen , Pinchieh Feng
发明人： Robert Chen , Pinchieh Feng
IPC分类号： F16F914
CPC分类号： A63B25/08 , B60G17/044 , F16F9/0218 , F16F9/43
摘要： A self-chargeable pneumatic cylinder comprises a cylinder body, a working piston disposed inside the cylinder body, and a hollow elongate shaft coupled to the working piston and extending outward from the cylinder body. The hollow interior of the shaft contains a pump mechanism for charging the pneumatic cylinder with a gas. The pump mechanism comprises a pumping piston that is axially slidable within the interior of the shaft and a pumping rod coupled to the pumping piston that is extendable out of the shaft for facilitating actuation of the pump. As the pump is manually actuated, pressurized gas flows into the cylinder body across a one-way valve to charge the pneumatic cylinder as desired.

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