The present invention is directed to a shaving device including a housing with a skin contacting surface and at least one cutting blade mounted in the housing, wherein the at least one cutting blade has an asymmetric cross-sectional shape with a first face, a second face opposed to the first face as well as a cutting edge at the intersection of the first face and the second face. The blade is mounted in the housing such that the clearance angle α between the skin contacting surface and the primary bevel of the first face or the secondary bevel of the second face is ≤11°, the effective cutting angle ε between the skin contacting surface and the bisecting line of the first wedge angle θ.sub.1 between the first surface and the primary bevel is ≥10° and θ.sub.1>second wedge angle θ.sub.2 between the first surface and secondary bevel.

The present invention is directed to a shaving device including a housing with a skin contacting surface and at least one cutting blade mounted in the housing, wherein the at least one cutting blade has an asymmetric cross-sectional shape with a first face, a second face opposed to the first face as well as a cutting edge at the intersection of the first face and the second face. The blade is mounted in the housing such that the clearance angle α between the skin contacting surface and the primary bevel of the first face or the secondary bevel of the second face is ≤11°, the effective cutting angle ε between the skin contacting surface and the bisecting line of the first wedge angle θ.sub.1 between the first surface and the primary bevel is ≥10° and θ.sub.1>second wedge angle θ.sub.2 between the first surface and secondary bevel.

A multi-orientation razor. The multi-orientation includes a substantially flat metal blade member being frangible about a central axis. The substantially flat metal blade member can have on a first peripheral edge thereof a first straight sharp edge. The first straight sharp edge can be parallel to the central axis. The first peripheral edge further includes a first concavely curved sharp edge. The substantially flat metal blade member can have on a second peripheral edge thereof a second straight sharp edge. The second straight sharp edge can be parallel to the central axis. The second peripheral edge can further include a second concavely curved sharp edge.

A multi-orientation razor. The multi-orientation includes a substantially flat metal blade member being frangible about a central axis. The substantially flat metal blade member can have on a first peripheral edge thereof a first straight sharp edge. The first straight sharp edge can be parallel to the central axis. The first peripheral edge further includes a first concavely curved sharp edge. The substantially flat metal blade member can have on a second peripheral edge thereof a second straight sharp edge. The second straight sharp edge can be parallel to the central axis. The second peripheral edge can further include a second concavely curved sharp edge.

The present disclosure in some embodiments provides a razor cartridge comprising: at least one shaving blade having a cutting edge; a receiving base receiving the at least one shaving blade arranged in a first direction; a cap covering at least a portion of the receiving base; and a plurality of comb elements, at least some of which are disposed in front of the at least one shaving blade, the comb elements extending toward a front of the receiving base in a second direction that is not perpendicular to the first direction, wherein the plurality of comb elements comprise a top surface configured to define a shaving plane.

The present disclosure in some embodiments provides a razor cartridge comprising: at least one shaving blade having a cutting edge; a receiving base receiving the at least one shaving blade arranged in a first direction; a cap covering at least a portion of the receiving base; and a plurality of comb elements, at least some of which are disposed in front of the at least one shaving blade, the comb elements extending toward a front of the receiving base in a second direction that is not perpendicular to the first direction, wherein the plurality of comb elements comprise a top surface configured to define a shaving plane.

The present invention relates to a cutting blade having an asymmetric cross-sectional shape with a first face, a second face opposed to the first face and different from the first face as well as a cutting edge wherein the first face comprises a surface and the second face comprises a primary bevel, a secondary bevel and a tertiary bevel with a first wedge angle θ.sub.1 between the surface on the first face and the primary bevel, a second wedge angle θ.sub.2 between the surface on the first face and the secondary bevel and a third wedge angle θ.sub.3 between the surface on the first face and the tertiary bevel. Moreover, the present invention relates to a hair removal device comprising this cutting blade.

The present invention relates to a cutting blade having an asymmetric cross-sectional shape with a first face, a second face opposed to the first face and different from the first face as well as a cutting edge wherein the first face comprises a surface and the second face comprises a primary bevel, a secondary bevel and a tertiary bevel with a first wedge angle θ.sub.1 between the surface on the first face and the primary bevel, a second wedge angle θ.sub.2 between the surface on the first face and the secondary bevel and a third wedge angle θ.sub.3 between the surface on the first face and the tertiary bevel. Moreover, the present invention relates to a hair removal device comprising this cutting blade.

According to one embodiment, a shaving blade includes a substrate having a cutting edge provided with a sharp substrate tip, wherein a thickness T16 of the substrate measured at a distance D16, which is 16 micrometers from the substrate tip, is in a range from 2.41 micrometers to 3.76 micrometers.

A razor blade having a substrate with a cutting edge being defined by a sharpened tip. The substrate has a thickness of greater than about 2.30 micrometers measured at a distance of four micrometers from the blade tip, a thickness of greater than about 4.26 micrometers measured at a distance of eight micrometers from the blade tip, and greater than about 7.93 micrometers measured at a distance of sixteen micrometers from the blade tip. A hard coating joined to the substrate has a thickness of 700 Angstroms to about 3500 Angstroms. An outer layer joined to a coated substrate is discontinuous. The outer layer may be produced from a dispersion comprising about 0.03 g/L or less of telomer or from about 0.5 % solids or less of telomer by weight of composition. The novel razor blade cuts at less than 100 % cutting efficiency using a single fiber cutting efficiency measure.