The present invention relates to a cutting blade having a blade body with a first material joined to a second material, a first face, a second face opposed to the first face, and a cutting edge, where the first face includes a first surface, and the second face includes a primary bevel having a convex or straight cross-sectional shape and a secondary bevel having a concave cross-sectional shape with a line connecting the two bevels, the primary bevel extending from the cutting edge to the line, where cutting edge and primary bevel are shaped in the second material. A first wedge angle θ.sub.1 between the first surface and the primary bevel or the tangent of the primary bevel through the cutting edge is greater than a second wedge angle θ.sub.2 between the first surface and the tangent of the secondary bevel. A hair removal device includes this cutting blade.

The present invention relates to a cutting blade having a blade body with a first material joined to a second material, a first face, a second face opposed to the first face, and a cutting edge, where the first face includes a first surface, and the second face includes a primary bevel having a convex or straight cross-sectional shape and a secondary bevel having a concave cross-sectional shape with a line connecting the two bevels, the primary bevel extending from the cutting edge to the line, where cutting edge and primary bevel are shaped in the second material. A first wedge angle θ.sub.1 between the first surface and the primary bevel or the tangent of the primary bevel through the cutting edge is greater than a second wedge angle θ.sub.2 between the first surface and the tangent of the secondary bevel. A hair removal device includes this cutting blade.

A shaving blade device for precision shaving and trimming includes a razor blade having a mounting edge and a cutting edge. The mounting edge is selectively engageable to a straight razor assembly so that the razor blade is removably engaged to the straight razor assembly. A cutout, which extends into the cutting edge and a first end of the razor blade, defines a length of the cutting edge. The cutting edge is used to shave hair from skin and to trim hair and is particularly useful in precision shaving and trimming in hard to reach areas.

A shaving blade device for precision shaving and trimming includes a razor blade having a mounting edge and a cutting edge. The mounting edge is selectively engageable to a straight razor assembly so that the razor blade is removably engaged to the straight razor assembly. A cutout, which extends into the cutting edge and a first end of the razor blade, defines a length of the cutting edge. The cutting edge is used to shave hair from skin and to trim hair and is particularly useful in precision shaving and trimming in hard to reach areas.

A razor has a rigid metal body member with a thickness and a plurality of apertures therein. The rigid metal body member has a skin-engaging surface. Each aperture has a cutting blade adjacent the skin-engaging surface. The thickness of the rigid metal body member is from 2 mm to 10 mm.

A razor has a rigid metal body member with a thickness and a plurality of apertures therein. The rigid metal body member has a skin-engaging surface. Each aperture has a cutting blade adjacent the skin-engaging surface. The thickness of the rigid metal body member is from 2 mm to 10 mm.

Razor having a hair-cutting fiber having a hair-cutting section attached to a support in such a position relative to a skin engaging surface that the hair-cutting section is exposed to a user's skin for cutting through hairs when the skin engaging surface is in contact with the skin and moved over the skin. The hair-cutting section has a fiber diameter smaller than or equal to 7 μm and is made from a fiber material having a tensile strength larger than or equal to 5 GPa. A shaving method using such a razor is also described.

Razor having a hair-cutting fiber having a hair-cutting section attached to a support in such a position relative to a skin engaging surface that the hair-cutting section is exposed to a user's skin for cutting through hairs when the skin engaging surface is in contact with the skin and moved over the skin. The hair-cutting section has a fiber diameter smaller than or equal to 7 μm and is made from a fiber material having a tensile strength larger than or equal to 5 GPa. A shaving method using such a razor is also described.

The present invention relates to a cutting blade having a first face, a second face opposed to the first face and different from the first face as well as a cutting edge at the intersection of the first face and the second face. The first face comprises a first surface and a primary bevel with a first wedge angle θ.sub.1 between the first surface and the primary bevel. The second face comprises a secondary bevel and a tertiary bevel with a second wedge angle θ.sub.2 between the first surface on the first face and the secondary bevel and a third wedge angle θ.sub.3 between the first surface on the first face and the tertiary bevel, where θ.sub.1>θ.sub.2 and θ.sub.2<θ.sub.3. Moreover, the present invention relates to a hair removal device comprising this cutting blade.

The present invention relates to a cutting blade having a first face, a second face opposed to the first face and different from the first face as well as a cutting edge at the intersection of the first face and the second face. The first face comprises a first surface and a primary bevel with a first wedge angle θ.sub.1 between the first surface and the primary bevel. The second face comprises a secondary bevel and a tertiary bevel with a second wedge angle θ.sub.2 between the first surface on the first face and the secondary bevel and a third wedge angle θ.sub.3 between the first surface on the first face and the tertiary bevel, where θ.sub.1>θ.sub.2 and θ.sub.2<θ.sub.3. Moreover, the present invention relates to a hair removal device comprising this cutting blade.