发明名称 Scissors
摘要 The improved pair of scissors or shears includes cooperating blades that operate conventionally. Each respective blade includes an acutely recessing trailing edge having about a 16-degree taper from a reference line perpendicular to the cutting plane and a cutting surface having a ratio substantially about 1:2 to about 1:5 relative to the blade thickness.
申请公布号 US2015250105(A1) 申请公布日期 2015.09.10
申请号 US201314435405 申请日期 2013.12.18
申请人 PAPWORTH Owen 发明人 Papworth Owen
分类号 A01G3/02;B26B13/28;B26B13/06 主分类号 A01G3/02
代理机构 代理人
主权项 1. An improved pair of scissors or pruning shears wherein the scissors or shears comprises a first blade cooperating with a second blade and the first and second blades being pivotably coupled to each other, and each blade respectively further comprising a tip at a distal end and a handle portion at a proximal end, the improvement comprising: the first blade further comprising a first-blade cutting face extending from a distal end to a proximal position, the cutting face having an overall width defined between a cutting edge and an offset and parallel trailing edge wherein the width is substantially between a 1:2 to 1:5 ratio of the cutting surface relative to a thickness of a leading face, and further the cutting face defines a cutting plane,the leading face arranged substantially perpendicular to the cutting face and extending from the cutting edge,a trailing face extending from the trailing edge and extending at a tip angle substantially from 3-degrees to 45-degrees relative to a vertical reference line perpendicular to the cutting plane.
地址 Portland OR US