发明名称 Retractable object lift
摘要 A retractable lifting device for use by a hunter or nature photographer on an elevated observation platform. The device compresses a reel, spring loaded to wrap up a lifting rope or cord of about 30 feet in length. A clip attaches to an object to be lifted. The reel is spring loaded so that the reel winds up when an object is not fastened to the lifting cord. An operator can then leave an object on the ground while the operator ascends to the observation platform. The lifting cord remains conveniently taut until the operator pulls the lifting cord to elevate the object.
申请公布号 US2004195423(A1) 申请公布日期 2004.10.07
申请号 US20040812733 申请日期 2004.03.30
申请人 MYERS DOYLE R. 发明人 MYERS DOYLE R.
分类号 B65H75/40;(IPC1-7):B65H75/30;B65H75/48 主分类号 B65H75/40
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