Shaving razors and shaving cartridges
First Claim
Patent Images
1. A shaving blade unit comprising:
- a housing having a top surface, a bottom surface, a front edge, a rear edge, and a pair of side edges extending between the front edge and the rear edge, the housing having a plurality of blades disposed between the front edge and the rear edge, each of the plurality of blades having a cutting edge exposed at the top surface of the housing; and
a pair of independent retainers each having a top portion, a bottom portion, and a convex portion connecting the top portion to the bottom portion, each of the retainers extending along a respective one of the pair of side edges between the front edge of the housing and the rear edge of the housing,wherein the top portion of each of the retainers extends over a portion of the top surface of the housing to retain the plurality of blades in the housing,wherein the convex portion includes a continuous curvature from the top portion to the bottom portion,wherein the bottom portion of each of the retainers is curved around the bottom surface of the housing, andwherein each of the retainers includes a protrusion and a recess formed on opposite surfaces of the top portion.
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Accused Products
Abstract
A shaving blade unit includes a housing having a top surface, a bottom surface, a front edge, a rear edge, and a pair of side edges extending between the front edge and the rear edge, the housing having at least one blade disposed between the front edge and the rear edge, the at least one blade having a cutting edge, and a pair of retainers each having a top portion, a bottom portion, and a portion connecting the top portion to the bottom portion, the retainers extending along the pair of side edges between the front edge of the housing and the rear edge of the housing.
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Citations
39 Claims
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1. A shaving blade unit comprising:
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a housing having a top surface, a bottom surface, a front edge, a rear edge, and a pair of side edges extending between the front edge and the rear edge, the housing having a plurality of blades disposed between the front edge and the rear edge, each of the plurality of blades having a cutting edge exposed at the top surface of the housing; and a pair of independent retainers each having a top portion, a bottom portion, and a convex portion connecting the top portion to the bottom portion, each of the retainers extending along a respective one of the pair of side edges between the front edge of the housing and the rear edge of the housing, wherein the top portion of each of the retainers extends over a portion of the top surface of the housing to retain the plurality of blades in the housing, wherein the convex portion includes a continuous curvature from the top portion to the bottom portion, wherein the bottom portion of each of the retainers is curved around the bottom surface of the housing, and wherein each of the retainers includes a protrusion and a recess formed on opposite surfaces of the top portion. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
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11. A shaving blade unit comprising:
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a housing having a top surface, a bottom surface, a front edge, a rear edge, and a pair of side edges extending between the front edge and the rear edge, the housing having a plurality of blades disposed between the front edge and the rear edge, each of the plurality of blades having a cutting edge exposed at the top surface of the housing; a pair of independent retainers each having a top portion, a bottom portion, a convex portion connecting the top portion to the bottom portion, and an inner surface, each of the retainers extending along a respective one of the pair of side edges between the front edge of the housing and the rear edge of the housing; and a protrusion disposed on the inner surface of each of the retainers, wherein the top portion of each of the retainers extends over a portion of the top surface of the housing to retain the plurality of blades in the housing, wherein the convex portion includes a continuous curvature from the top portion to the bottom portion, wherein the bottom portion of each of the retainers is curved around the bottom surface of the housing, and wherein the continuous curvature extends along the bottom portion and the continuous curvature along the bottom portion is in continuous contact with the bottom surface of the housing. - View Dependent Claims (12, 13, 14, 15, 16, 17, 18, 19, 20)
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21. A shaving blade unit comprising:
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a housing having a top surface, a bottom surface, a front edge, a rear edge, and a pair of side edges extending between the front edge and the rear edge, the housing having a plurality of blades disposed between the front edge and the rear edge, each of the plurality of blades having a cutting edge exposed at the top surface of the housing; a pair of independent retainers each having a top portion, a bottom portion, a convex portion connecting the top portion to the bottom portion, an inner surface, a front edge, and a rear edge, the retainers extending along a respective one of the pair of side edges between the front edge of the housing and the rear edge of the housing; a protrusion disposed on the inner surface of each of the retainers; and a recess disposed on the top portion of each of the retainers and extending between the front edge of each retainer and the rear edge of each retainer, wherein the top portion of each of the retainers extends over a portion of the top surface of the housing to retain the plurality of blades in the housing, wherein the convex portion includes a continuous curvature from the top portion to the bottom portion, wherein the bottom portion of each of the retainers is curved around the bottom surface of the housing, and wherein the continuous curvature extends along the bottom portion and the continuous curvature along the bottom portion is in continuous contact with the bottom surface of the housing. - View Dependent Claims (22, 23, 24, 25, 26, 27, 28, 29, 30)
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31. A shaving blade unit comprising:
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a housing having a top surface, a bottom surface, a front edge, a rear edge, and a pair of side edges extending between the front edge and the rear edge, the housing having a plurality of blades disposed between the front edge and the rear edge, each of the plurality of blades having a cutting edge; and a pair of independent retainers each having a top portion, a bottom portion, and a convex portion connecting the top portion to the bottom portion, each of the retainers extending along a respective one of the pair of side edges between the front edge of the housing and the rear edge of the housing, wherein the convex portion includes a continuous curvature from the top portion to the bottom portion, wherein the bottom portion of each of the retainers is curved around the bottom surface of the housing, wherein each of the retainers is preloaded thereby securing each retainer to the housing via a spring force with each of the retainers having an installed configuration that is different than an uninstalled configuration prior to being installed on the housing with each of the retainers biased apart in the installed configuration, and wherein the continuous curvature extends along the bottom portion and the continuous curvature along the bottom portion is in continuous contact with the bottom surface of the housing. - View Dependent Claims (32, 33, 34, 35, 36, 37, 38, 39)
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Specification