Patent ID: 6889438

Claim:
A replaceable safety shaving assembly for attachment to a razor handle, comprising a plurality of elongate blades having longitudinally elongate, generally rectilinear sharpened edges and mounted in spaced relation in a carrier, said carrier comprising a molded material, a skin contacting surface surrounding the blade sharpened edges and including skin-engaging forward and rearward surfaces, the skin-engaging forward surface being in front and the skin-engaging rearward surface being at the rear of the shaving assembly, and the plurality of blades being located between the forward surface and the rearward surface and having the sharpened edges oriented in the same direction facing the forward surface such that during a shaving stroke the forward surface, the plurality of blade sharpened edges, and then the rearward surface contact the skin, the plurality of blades, said carrier and said skin-contacting forward and rearward surfaces being attachable as a unit to a said razor handle, the aspect ratio of the length to width of the skin contacting surface being in the range of from 1:1 to 2.8:1, said shaving assembly during shaving being substantially inflexible over a major longitudinal dimension, the skin contacting surface having a circumscribing perimeter confining a footprint area of at least 450 mm 2 , the forward surface having an area of at least 140 mm 2 within the footprint area and being at least about 18.6% of said footprint area, and the circumscribing perimeter being so shaped that the footprint area confined by said perimeter has a circularity, wherein circularity (C) is a ratio between the area (A) of a shape enclosed by its perimeter (P) to the length of the perimeter as defined by the relation C=A/P 2 ○4π○100, not less than 70%.