发明名称 Ring-center pivot loose-leaf binder page lifter
摘要 A page lifting device for use with loose-leaf binders containing binding rings. The leaves of the page lifter are formed from one or more stiff sheets of material or loops of stiff wire, rotatably affixed at their inner edges to an attaching member that is fixedly attached to the binding-ring base cover. The pivot axis between the leaves and attachment member is located close to the axis of the substantially circular binder rings which, when the binder is closed, causes the page lifter leaves to envelope and lift the loose-leaf pages away from the binder spine. The page lifter leaves can contain slots or holes therein, which allow them to fit over the binder rings on closing. The attaching member is fixedly attached to the binding-ring base using pressure sensitive adhesive, that is either directly on the attaching member or on a surface of foam tape. The pressure sensitive adhesive is protected by a peel-off protective cover.
申请公布号 US2005036825(A1) 申请公布日期 2005.02.17
申请号 US20030639921 申请日期 2003.08.14
申请人 PANGBURN DANIEL WESLEY 发明人 PANGBURN DANIEL WESLEY
分类号 B42F13/40;(IPC1-7):B42F13/00 主分类号 B42F13/40
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