Shaving device

A razor blade system of the wet shave type comprising:

• a support member;
• a blade member carried on said support member, said blade member having a tubular upstanding wall of predetermined height, said blade member defining a central aperture, said wall having an upper and lower end, an inwardly facing flange formed on said upper end and an annular sharpened cutting edge formed in said inwardly facing flange, and integral outwardly facing flange structure on said wall;
• a guard member disposed in the central aperture of said blade member for movement relative to said support member;
• and
• guide means positioned between said upstanding wall and said guard member for positioning said guard member relative to said blade member while permitting relative motion between said guard member and said blade member.

A razor blade unit comprising:

• a first razor blade having an upstanding wall of a predetermined height and defining a central aperture, said wall having an upper and lower end, said first razor blade also including an inwardly facing flange on said upper end, said inwardly facing flange having a sharpened cutting edge, and said first razor blade including integral outwardly facing flange structure on said wall;
• a second razor blade having an upstanding wall of predetermined height and defining a central aperture, said wall having an upper and lower end, said second razor blade also including an inwardly facing flange on said upper end, said inwardly facing flange having a sharpened cutting edge, and said second razor blade including integral outwardly facing flange structure on said wall, said second razor blade being concentrically disposed in the central aperture of said first razor blade;
• a first guide member disposed in said central aperture of said first razor blade and connected to said first razor blade, said first guide member including a stop surface for cooperating with said integral outwardly facing flange structure of said second razor blade;
• and
• a second guide member disposed within said central aperture of said second razor blade and connected to said second razor blade unit, said first razor blade and said second razor blade being vertically displaceable.

A razor blade unit comprising:

• a first razor blade having a generally tubular upstanding wall of a predetermined height and defining a central aperture, said wall having an upper and lower end, said first razor blade also including an integrally formed, inwardly facing flange on said upper end, said inwardly facing flange having a sharpened cutting edge, and said first razor blade including an integrally formed, outwardly facing flange on said lower end;
• A second razor blade having a generally tubular upstanding wall of predetermined height and defining a central aperture, said wall having an upper and lower end, said second razor blade also including an integrally formed, inwardly facing flange on said upper end, said inwardly facing flange having a sharpened cutting edge, and said second razor blade including an integrally formed outwardly facing flange on said lower end, said second razor blade being concentrically disposed in the central aperture of said first razor blade;
• a first guide member disposed in said central aperture of said first razor blade and connected to said first razor blade, said first guide member including a stop surface for cooperating with said outwardly facing flange of said second razor blade;
• a second guide member disposed within said central aperture of said second razor blade and connected to said second razor blade unit, said second guide member also including a stop surface;
• and
• a guard member concentrically disposed in said central aperture of said second razor blade and including a stop portion, said bearing surface of said second guide member cooperating with said stop portion of said guard member, whereby said first razor blade, said second razor blade, and said guard member are vertically displaceable in response to shaving forces.

A shaving system comprising:

• a plurality of razor blades, each of said razor blades having a generally tubular upstanding wall of a predetermined height and defining a central aperture, said wall having upper and lower ends, each of said razor blades having an inwardly facing flange with an annular cutting edge on said upper end and an outwardly facing flange on said lower end;
• a top member having a plurality of spaced apertures, said plurality of said razor blades being disposed in corresponding ones of said apertures of said top member, said top member including stop surface structure for cooperating with said outwardly facing flanges of said razor blades to control vertical movement of said blades relative to said top member in response to shaving forces;
• and
• resilient means disposed under said razor blades for biasing said outwardly facing flanges of said razor blades toward said stop surface structure.

A shaving unit comprising:

• a plurality of first razor blades, each having a generally tubular upstanding wall of a predetermined height and defining a central aperture, said wall having an upper and lower end, each of said first razor blade also including an integrally formed, inwardly facing flange on said upper end, said inwardly facing flange having a sharpened cutting edge, and each of said first razor blade including an integrally formed, outwardly facing flange on said lower end;
• a plurality of second razor blades, each having a generally tubular upstanding wall of predetermined height and defining a central aperture, said wall having an upper and lower end, each of said second razor blade also including an integrally formed, inwardly facing flange on said upper end, said inwardly facing flange having a sharpened cutting edge, and each of said second razor blade including an integrally formed outwardly facing flange on said lower end, each of said second razor blade being respectively concentrically disposed in the central aperture of said each of first razor blades;
• a plurality of first guide members disposed in said respective central apertures of said first razor blades and connected to said respective first razor blades, each of said first guide members including a stop surface for cooperating with said outwardly facing flanges of said second razor blades;
• a plurality of second guide members disposed in said respective central apertures of said second razor blades and connected to said respective second razor blade units, each of said second guide members also including a stop surface;
• a plurality of guard members concentrically disposed in said respective central aperture of each of said second razor blades also including a stop portion, said stop surface of each of said second guide members cooperating with said respective stop portions of said guard members, whereby each of said first razor blade, said second razor blade, and said guard member are respectively vertically displaceable in response to shaving forces;
• a top member having an upper and lower face and having a thickness less than the height of said upstanding wall of each of said first razor blades, said top member including a plurality of apertures having a generally tubular shape, each of said apertures of said top member being disposed about said respective wall of each of said first razor blades whereby said lower face of said top member includes a stop surface for cooperating with said outwardly facing flange of each of said first razor blades to control relative vertical movement between each of said first razor blades and said top member;
• resilient means disposed under each of said first and second razor blades for providing dynamic control to said first and second razor blades;
• and
• a base member disposed under said resilient means for mounting said resilient means to said top member.