发明授权
- 专利标题: Method of manufacturing a paper binder
- 专利标题(中): 纸粘合剂的制造方法
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申请号: US100986申请日: 1993-08-03
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公开(公告)号: US5346573A公开(公告)日: 1994-09-13
- 发明人: Murray B. Blumberg , William M. Hoffman
- 申请人: Murray B. Blumberg , William M. Hoffman
- 申请人地址: BEX Brussels
- 专利权人: Technokantoor Limited
- 当前专利权人: Technokantoor Limited
- 当前专利权人地址: BEX Brussels
- 主分类号: B42F3/00
- IPC分类号: B42F3/00 ; B32B31/00
摘要:
A paper binder comprises a pair of prongs, an anchor formation at one end of each prong, and a head, the anchor formations being embedded in the head. The invention extends to a method of manufacturing a paper binder, which includes the steps of providing two thin head forming elements that are capable of being bonded together, forming an aperture in one of the elements, inserting a binding member into the aperture, the binding member having a pair of prongs with anchor formations and bonding the elements together, the anchor formations sandwiched therebetween and the prongs extending therefrom. The invention extends further to an apparatus for manufacturing a paper binder which includes an inserting means for inserting the binding member into an aperture in a base element and a bonding means for bonding a cover element to the base element with an anchor formation sandwiched therebetween.
公开/授权文献
- USD426524S Circuit board holder 公开/授权日:2000-06-13
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