Concave, convex safety razor

A shaving system comprising:

• a safety razor blade cartridge formed in an arcuate shape about its longitudinal axis, the cartridge having a first cutting edge on one side thereof fixed in a convex arcuate shape and a second cutting edge on the other side thereof fixed in a concave arcuate shape, the end of the cartridge having projections formed thereon and having a thumb wheel at one end;
• an elongated handle having a pair of spaced apart arms at one end thereof;
• and
• means on said arms for rotatably receiving the projections of said ends of said cartridge, for mounting said cartridge to said arms and for locking said cartridge in either a first predetermined position wherein said convex cutting edge is operative or a second predetermined position wherein said concave cutting edge is operative.

A shaving system having a rotatable arcuate razor blade cartridge to optimize shaving body contours, comprising:

• a Y-shaped handle forming a yoke at one end with two divergent arms having recesses at their digital ends for receiving a razor blade cartridge;
• a rigid, arcuate razor blade cartridge with at least one shaving blade having cutting edges disposed in opposite directions on each of the convex and concave sides of the arc, said cartridge having projections extending from each end thereof which rotatably mount in the recesses of said arms, having a thumb wheel at one end thereof;
• and
• means for locking said cartridge in either of two operative positions wherein a user rotates the cartridge 180.degree. to select either the convex or concave shaving surface.

A shaving system having a rotatable razor blade cartridge with convex and concave blades comprising:

• a Y-shaped handle forming a yoke at one end with two divergent hollow arms;
• rotatable means mounted to the end of each arm for rotatably receiving an end of a razor blade cartridge;
• a rigid, arcuate razor blade cartridge with at least one shaving blade edge disposed on each side of the arc facing in opposite directions, said cartridge having projections extending from each end of the cartridge along its longitudinal axis, the projections engaging said rotatable means for rotatably mounting the cartridge transversely between the arms of the handle;
• and
• remote cartridge actuation means mounted in said handle for rotating said cartridge when activated by a user.

A razor blade cartridge assembly comprising:

• a rigid cap member formed in an arc along its longitudinal axis;
• a rigid shoe member formed in an arc along its longitudinal axis complementary to the arc of the cap member;
• blade means having at least two opposed cutting edges sandwiched between said shoe member and said cap member, said blade means being curved into an arcuate shape along its longitudinal axis and having one of said cutting edges being operative to shave when one cutting edge of the blade is held in a concave position relative to a shaver and the other of said cutting edges being operative to shave when the blade means is rotated and held in a convex position relative to a shaver, said cap member and said shoe member being bonded together to form a cartridge assembly;
• and
• means formed on both ends of said cartridge assembly for cooperating with rotating connection means of a razor whereby said cartridge may be selectively rotated by a user into either a fixed convex or concave shaving position.

A razor blade cartridge assembly, comprising:

• a rigid, longitudinally convex shoe member, wedge-shaped in cross section, with a blade-supporting surface;
• a rigid, longitudinally concave cap member, wedge shaped in cross-section, with a blade supporting surface opposite to that of the shoe member, the concave cap member overlaying the convex shoe member with the blade supporting surfaces facing each other;
• at least one shaving blade disposed between the shoe and cap member, the leading cutting edge of the blade extending past the point of the shoe wedge, the trailing cutting edge extending past the point of the cap wedge;
• and
• projections formed on the ends of the cap and shoe members, the projections adapted to cooperate with a complementary configuration formed on the handle of a razor to receive said cartridge and to position said cartridge in either a first fixed shaving position wherein the cartridge assembly is in a concave relationship to a shaving surface or a second fixed shaving position wherein said cartridge assembly is in a convex relationship to a shaving surface.