Dual razor blade assembly

Claim 2

Razor blade assembly comprising a platform member of plastic material, blade means, cap means of plastic material, said cap means including a forwardly extending projections at each end thereof with an aligning surface in each of said projection, said blade means being disposed between said platform member and cap means, said blade means including a plurality of planar blade members, each said blade member having a sharpened cutting edge, said aligning surfaces receiving the cutting edge of one of said blades in engagement therewith and said cutting edges being parallel and extending in the same direction to permit simultaneous hair cutting engagement adjacent the skin of an operator, and means permanently securing said platform member, blade means and cap means together as a unit.

Claim 3

The invention according to claim 1 and further including a spacer member disposed between adjacent blade members.

Claim 4

The invention according to claim 2 in which said spacer member includes a plurality of spaced fingers extending in the direction that said cutting edges face.

Claim 5

The invention according to claim 3 in which each of said fingers comprises a forward edge defined by wall surfaces extending rearwardly and outwardly toward a forward edge of the spacer, a planar top surface comprising an extension of one surface of said spacer member, and a planar bottom surface comprising an extension of a second surface of said spacer member, said top surface of said finger having an area less than the area of said bottom surface of said finger.

Claim 6

The invention according to claim 1 in which said platform member includes a front wall portion and a guard portion extending parallel to said wall portion but removed therefrom to form a slot therebetween, said first cutting edge extending to a point over said slot, and said second cutting edge extending to a point short of said slot.

Claim 7

The invention according to claim 5 in which said platform member is further provided with an opening, and said first blade member is provided with an unobstructed opening in alignment with said platform member opening.

Claim 8

Razor blade assembly comprising a platform member of molded plastic material including a guard, blade means, and a cap member of molded plastic material, said blade means being disposed between said platform member and said cap member, said blade means including first and second planar blade members, each said blade member having a sharpened cutting edge, said blade members being disposed in parallel planes and said cutting edges being parallel and facing in the same direction to permit simultaneous hair cutting engagement adjacent the skin of an operator, the first of said blade members being in engagement with said platform member, the second of said blade members being in engagement with said cap member, a spacer member disposed between said first and second blade members, said spacer member including a plurality of spaced fingers extending in the direction that said cutting edges face, cutting edge engagement means on one of said molded members for positioning said cutting edges parallel to said guard, and means permanently securing said platform member, blade members, spacer member and cap member together as a unit, said razor blade assembly including attachment means for releasably attaching said razor blade assembly to a razor handle.

Claim 9

Razor blade assembly comprising a platform member of molded plastic material including a guard, blade means, and a cap member of molded plastic material, said blade means being disposed between said platform member and said cap member, said blade means including first and second planar blade members, each said blade member having a sharpened cutting edge, said blade members being disposed in parallel planes and said cutting edges being parallel and facing in the same direction to permit simultaneous hair cutting engagement adjacent the skin of an operator, the first of said blade members being in engagement with said platform member, the second of said blade members being in engagement with said cap member, a spacer member disposed between said first and second blade members, said spacer member including a plurality of spaced fingers extending in the direction that said cutting edges face, cutting edge engagement means on one of said molded members for positioning said cutting edges parallel to said guard, and means permanently securing said platform member, blade members, spacer member and cap member together as a unit, said razor blade assembly including attachment means for releasably attaching said razor blade assembly to a razor handle.

Claim 10

The invention according to claim 7 in which the second cutting edge is recessed relative to said first cutting edge.

Claim 11

The invention according tO claim 7 in which said platform member is provided with an opening and said first blade member is provided with an unobstructed opening aligned with said platform opening whereby to provide a passage from between said first and second blade members through said platform member.

Claim 12

The invention according to claim 9 in which said platform member is provided with a front wall portion and a guard portion extending parallel to said front wall portion but spaced therefrom to define a slot extending through said platform member.

Claim 13

The invention according to claim 10 in which said second cutting edge is recessed relative to said first cutting edge, said first cutting edge being disposed proximate to said slot, and said second cutting edge being disposed proximate to said passage.

Claim 14

Razor blade unit comprising a platform member of molded plastic material, blade means having openings therein, and a cap member of molded plastic material having pins extending downwardly therefrom and extending loosely through said openings, said blade means being disposed between said platform member and said cap member, said blade means including first and second planar blade members, each said blade member having a sharpened cutting edge, and a spacer member disposed between said first and second blade members to position said planar blade members parallel to one another, said unit having aperture means exposing another edge of said blade means from outside the platform and cap members, whereby said blade means may be moved relative to said pins to be properly positioned within said unit during assembly of said unit, means including said pins permanently securing said platform member, blade members, spacer member and cap member together as a rigid unit, and attachment means for releasably attaching said razor blade unit to a razor handle.

Claim 15

Razor blade unit comprising a platform member of molded plastic material, blade means having openings therein, and a cap member of molded plastic material having pins extending downwardly therefrom and extending loosely through said openings, said blade means being disposed between said platform member and said cap member, said blade means including first and second planar blade members, each said blade member having a sharpened cutting edge, and a spacer member disposed between said first and second blade members to position said planar blade members parallel to one another, said unit having aperture means exposing another edge of said blade means from outside the platform and cap members, whereby said blade means may be moved relative to said pins to be properly positioned within said unit during assembly of said unit, means including said pins permanently securing said platform member, blade members, spacer member and cap member together as a rigid unit, and attachment means for releasably attaching said razor blade unit to a razor handle.

Claim 16

The invention blade unit according to claim 12 in which said cap member has notches therein respectively to receive portions of said cutting edges, whereby to facilitate positioning of said blade members in said unit during assembly of said unit.

Claim 17

A razor blade unit comprising a first member of molded plastic material, said first plastic member defining a surface for receiving a blade member, a front wall surface and a guard portion extending parallel to said wall surface but spaced therefrom to define a slot, a first planar blade member having a sharpened cutting edge, said first planar blade member being disposed on said blade receiving surface with its cutting edge above said slot, and extending parallel to said guard portion, a spacer member on said first blade member, a second planar blade member having a sharpened cutting edge, said second planar blade member being disposed on said spacer member with its cutting edge parallel to and offset rearwardly from the cutting edge of said first blade member, a second member of molded plastic material disposed on said second blade member, cutting edge engagement means on one of said molded members for positioning said cutting edges parallel to one another and to said guard portion, means permanently securing said first plastic member, said blade members, said spacer member and said second plastic member together in fixed, geometrical relationship as a substantially rigid unit, and attachment means integral with said plastic members for releasably attaching said razor blade unit to a razor handle.

Claim 18

A razor blade unit comprising a first member of molded plastic material, said first plastic member defining a surface for receiving a blade member, a front wall surface and a guard portion extending parallel to said wall surface but spaced therefrom to define a slot, a first planar blade member having a sharpened cutting edge, said first planar blade member being disposed on said blade receiving surface with its cutting edge above said slot, and extending parallel to said guard portion, a spacer member on said first blade member, a second planar blade member having a sharpened cutting edge, said second planar blade member being disposed on said spacer member with its cutting edge parallel to and offset rearwardly from the cutting edge of said first blade member, a second member of molded plastic material disposed on said second blade member, cutting edge engagement means on one of said molded members for positioning said cutting edges parallel to one another and to said guard portion, means permanently securing said first plastic member, said blade members, said spacer member and said second plastic member together in fixed, geometrical relationship as a substantially rigid unit, and attachment means integral with said plastic members for releasably attaching said razor blade unit to a razor handle.

Claim 19

The blade unit according to claim 14 in which said spacer member includes a plurality of spaced fingers extending in the direction that said cutting edges face.

Claim 20

The blade unit according to claim 15 in which each of said fingers comprises a forward edge defined by wall surfaces extending rearwardly and outwardly toward a forward edge of the spacer, a planar top surface comprising an extension of one surface of said spacer member, and a planar bottom surface comprising an extension of a second surface of said spacer member, said top surface of said finger haVing an area less than the area of said bottom surface of said finger.

Claim 21

The blade unit according to claim 14 in which said first plastic member is further provided with an opening, and said first blade member is provided with an unobstructed opening in alignment with said first plastic member opening.

Claim 22

The blade unit according to claim 14 wherein one of said plastic members includes structure defining a plurality of spaced openings, and said spacer member includes a plurality of spaced forwardly extending fingers, said fingers being located so that the spaces between said fingers are aligned with the openings in said one plastic member to provide a series of flow paths for removal of shaving debris from between the cutting edges of said first and second blade members.

Claim 23

A razor blade unit comprising a first member of molded plastic material, said first plastic member defining a surface for receiving a blade member, a front wall surface and a guard portion extending parallel to said wall surface but spaced therefrom to define a slot, a first planar blade member having a sharpened cutting edge, said first planar blade member being disposed on said blade receiving surface with its cutting edge above said slot, and extending parallel to said guard portion, a spacer member on said first blade member, a second planar blade member having a sharpened cutting edge, said second planar blade member being disposed on said spacer member with its cutting edge parallel to and offset rearwardly from the cutting edge of said first blade member, a second member of molded plastic material disposed on said second blade member, said second plastic member having a forwardly extending projection at each end thereof, first and second aligning surfaces in each said projection, said first aligning surfaces receiving portions of the cutting edge of said first blade member and said second aligning surfaces receiving portions of the cutting edges of said second blade member, whereby to facilitate positioning of said blade members in said unit during assembly of said unit, one of said plastic members including structure defining a plurality of spaced openings, and said spacer member includes a plurality of spaced forwardly extending fingers, said fingers being located so that the spaces between said fingers are aligned with the openings in said one plastic member to provide a series of flow paths for removal of shaving debris from between the cutting edges of said first and second blade members, and means permanently securing said first plastic member, said blade members, said spacer member and said second plastic member together in fixed, geometrical relationship as a substantially rigid unit.

Claim 24

A razor blade unit comprising a first member of molded plastic material, said first plastic member defining a surface for receiving a blade member, a front wall surface and a guard portion extending parallel to said wall surface but spaced therefrom to define a slot, a first planar blade member having a sharpened cutting edge, said first planar blade member being disposed on said blade receiving surface with its cutting edge above said slot, and extending parallel to said guard portion, a spacer member on said first blade member, a second planar blade member having a sharpened cutting edge, said second planar blade member being disposed on said spacer member with its cutting edge parallel to and offset rearwardly from the cutting edge of said first blade member, a second member of molded plastic material disposed on said second blade member, said second plastic member having a forwardly extending projection at each end thereof, first and second aligning surfaces in each said projection, said first aligning surfaces receiving portions of the cutting edge of said first blade member and said second aligning surfaces receiving portions of the cutting edges of said second blade member, whereby to facilitate positioning of said blade members in said unit during assembly of said unit, one of said plastic members including structure defining a plurality of spaced openings, and said spacer member includes a plurality of spaced forwardly extending fingers, said fingers being located so that the spaces between said fingers are aligned with the openings in said one plastic member to provide a series of flow paths for removal of shaving debris from between the cutting edges of said first and second blade members, and means permanently securing said first plastic member, said blade members, said spacer member and said second plastic member together in fixed, geometrical relationship as a substantially rigid unit.

Claim 25

The blade unit according to claim 19 wherein said unit has opening means therein by way of which said first and second blade members and said spacer member are made accessible from outside said first and second plastic members, whereby said first and second blade members and said spacer member may be properly positioned within said unit during assembly of said unit.