US Patent 10442093 Safety utility blades, assemblies and methods of manufacturing

A safety blade for use with a knife assembly having a handle with a cutting head engagement portion, the safety bade comprising (a) a blade body, a bade attachment having a first inner edge and a second inner edge, a first blade shield, a second blade shield, a first blade cutting edge, and a second blade cutting edge, and (b) a handle adaptor having a body portion and a handle engagement portion with a handle securing mechanism. The first blade cutting edge is positioned between the first blade shield and the first inner edge, and the second blade cutting edge is positioned between the second blade shield and the second inner edge.