Abstract: An integrally formed rigid razor blade made of martensitic stainless steel includes a cutting edge portion, a base portion, and a bent portion. The cutting edge portion extends along a cutting edge portion axis and has a cutting edge at one end. The base portion extends along a base portion axis. The bent portion is intermediate the cutting edge portion and the base portion. The blade has a concave face and an opposed convex face. An average radius of curvature of the concave face of the bent portion is between 0.5 millimeters and 1 millimeters.

Abstract: A blade cartridge includes a blade member provided with blades, a blade base member located on the back side of the blade cartridge, and a top member located on the front side of the blade cartridge. The blade member is arranged between the blade base member and the top member. The cutting edge of each blade is exposed through the top member. A blade supporting portion provided in the blade member has a plurality of step plates arranged in a blade arrangement direction, which is orthogonal to the direction in which the cutting edge extends. A reinforcement plate portion, which increases the rigidity of the step plate, is provided while being bent from the step plate. The blade supporting portion is also provided with a bridge portion for mutual coupling.

Abstract: A scratch-resistant razor head includes a head frame and a razor blade including a support bar having an inclined platform and a blade portion mounted on the inclined platform. An angle between a cutting edge of the blade portion and a front end face of the inclined platform is greater than 0 degree and less than or equal to 0.5 degree; two resilient legs are respectively extended from the left and right frame walls and toward each other, each resilient leg includes an resilient inclined leg and a receiving leg extended from the inclined leg along the direction of the first axis, a convex point is formed by projecting from a top surface of the receiving leg, and the convex point is contacted with the inclined platform. A razor with such a razor head is also provided.

Abstract: A double-ended manual razor is disclosed, with razor on either side of a handle. Each razor is offset from the handle at an opposite angle, with respect to a midpoint between the two razors, that midpoint also being a highest point of the handle, rising from each razor to a pinnacle in a curvilinear manner. One uses the razor by placing at least one finger on either side of the pinnacle and another under the pinnacle, such as in a concave finger region or circle, and pivots around the middle point, pushing either the one or the other razor downwards onto a surface to be shaved. Then, one switches direction and shaves in the other direction with the other razor, always or sometimes placing more pressure on the side of the device with the razor currently in use to shave or cut.

Abstract: Provided is a shaver including a cartridge and a handle body. The cartridge includes a cartridge body formed in a rectangular frame shape; a plurality of blades installed in the cartridge body in the side-to-side direction of the cartridge body, each of the blades having a front portion bent downward; pair of side fixation slots formed on left and right frames of the cartridge body, respectively, so as to fix the left and right ends of each blade; a supporter connecting upper and lower frames of the cartridge body; and an inside fixation slot formed on the supporter so as to fix a portion of each blade. The handle body is coupled to the cartridge body.

Abstract: A shaving device comprising a head assembly including a support member having at least one support member magnet and a blade cartridge having at least one face with at least one razor blade and configured to be rotatably coupled to the support member about a pivot axis. The blade cartridge includes at least one blade cartridge magnet having a pole aligned with a pole of the support member magnet to generate a magnetic force that urges the blade cartridge about the pivot axis towards an initial starting position (ISP), wherein the blade cartridge is further configured to rotate about the pivot axis away from the ISP upon application of an external force sufficient to overcome the magnetic force between the support member magnet and the blade cartridge magnet.

Abstract: A protective cover for a shaving cartridge, a shaving assembly including a cartridge and a protective cover, a razor having a razor handle and such a shaving assembly, a method of shaving with such a razor and a method of manufacturing such a protective cover. The protective cover includes a housing extending longitudinally along a longitudinal axis (A) and is provided with a comb and a trimming blade, the trimming blade having an elongated cutting edge and the comb having several teeth projecting obliquely to the longitudinal axis (A) and protruding forwardly with regard to the trimming blade.

Abstract: According to the present invention, a lubrication box includes a first portion, a shaving aid material, and a second portion. The first portion of the lubrication box has a skin-engaging surface and at least one sidewall that, together, form a cavity. The skin-engaging surface includes at least two holes therethrough. The shaving aid material, which is distributed in the cavity in a series of layers, is ultrasonically compressed into the cavity such that it at least partially fills at least one of the holes in the skin-engaging surface and at least a portion of the cavity. The second portion of the lubrication box is attached to the first portion such that the cavity is substantially closed. A gap exists between in the cavity between the shaving aid and the second portion of the lubrication box to permit the shaving aid material to expand during normal use.

Abstract: A safety razor is disclosed, and includes a handle and a shaving head. The shaving head defines a longitudinal axis. The shaving head is mounted to a distal portion of the handle and has a rest position. The shaving head is configured to rotate out of the rest position in a first radial direction transverse to the longitudinal axis defined by the handle. The shaving head is inhibited from rotation out of the rest position in a second radial direction opposite from the first radial direction.

Abstract: A method of forming a functional razor cartridge for repeated shaving comprises rapid prototyping a housing of a razor cartridge. The housing has a front wall, a rear wall and opposing side walls disposed transverse to and between said front and rear walls. The method further comprises loading a metal insert with one or more elongate blade assemblies and disposing the metal insert in the housing such that the one or more blade assemblies extend between the opposing side walls of the housing.

Abstract: Consumer products, e.g., shaving systems and toothbrushes, are disclosed which have a replaceable portion, e.g., a shaving assembly or a toothbrush head, that is removably mounted on a handle. The consumer products described herein include keyed structures on the handle and replaceable portion, the relative placement of which creates a unique interaction between the two parts. This unique interaction may, for example, be used to provide a dedicated attachment system for each specific customer of the manufacturer of the consumer product.

Abstract: A shaving razor having a handle and a shaving head with an exposed reciprocating blade. A power source is disposed within the handle with an actuator that causes at least one blade of a multi-blade razor head to reciprocate within a zone of motion. Other embodiments are also described and claimed.

Abstract: A shaving device comprising a head assembly having a support member and a blade cartridge. The support member is configured to be detachably coupled to a handle. The blade cartridge has a first and a second face wherein at least one of the first or second faces comprises at least one razor blade. The blade cartridge is configured to be rotatably coupled to the support member about a pivot axis such that the blade cartridge is pivotable by a user to select one of the first or second faces.

Abstract: A blade cartridge for a shaving razor includes a unitary blade arrangement as part of a heating system for a razor. The unitary blade arrangement includes one or more electrically conductive blades in electrical connection with an electric power source that may be located in the blade cartridge or in the handle of the razor, forming an electric circuit. When supplied with electric current, the blades generate heat for increased shaving performance and comfort.

Abstract: A shaving razor having integrally formed blade guards. A generally monolithic body is formed from a suitable material such as thermoplastic to define blade channels for a plurality of blades, 1 blade retained in each channel the cutting edges of which define a cutting plane. A plurality of blade guards is formed as part of the body such that the shaving plane passes through the blade guards with one blade guard forward of each blade in the cutting direction. Other embodiments are also described and claimed.

Abstract: According to one aspect of the present invention, a lubrication box includes a first portion, a shaving aid material, and a second portion. The first portion of the lubrication box has a skin-engaging surface and at least one sidewall that, together, form a cavity. The skin-engaging surface includes at least two holes therethrough. The shaving aid material is pre-formed in a pre-determined shape, placed in the first portion of the lubrication box, and then compressed. The second portion of the lubrication box is attached to the first portion such that the cavity is substantially closed. A gap exists between in the cavity between the shaving aid and the second portion of the lubrication box to permit the shaving aid material to expand during normal use.

Abstract: A shaving blade assembly including a blade unit and a skin contact member. A razor including a razor handle and such a shaving blade assembly. The blade unit includes at least one shaving blade having a cutting edge. The blade unit has a blade unit skin contact surface area, where the blade unit and the skin contact member have a shaving blade assembly skin contact surface area. The ratio between the shaving blade assembly skin contact surface area and the blade unit skin contact surface area is between approximately 2 and 3.1. The skin contact member can include a leading planar surface and a trailing planar surface defining a contact plane, and the contact plane and the shaving plane are parallel and the distance between the contact plane and the shaving plane is between approximately 0.2 mm and 0.6 mm.

Abstract: A razor cartridge comprising a housing; a guard located at the front of the housing; a cap located at the rear of the housing; two or more blades disposed in the housing between the guard and the cap; a skin contact element extending across the housing between two of said blades; and a plurality of projections extending from a base of said skin contact element, each having a skin contacting surface, the projections being spaced along the length of the skin contact element, wherein there is a pitch of up to 2 mm between adjacent projections and the skin contacting surface has a width extending for up to 35% of the pitch.

Abstract: A shaving demonstration method having a step of providing a first shaving razor with a shaving surface having at least one blade with a cutting edge. A transparent first surface is provided. The shaving surface the first shaving razor contacts the transparent first surface. Another step includes illustrating the shaving surface of the first shaving razor against the transparent first surface through a transparent second surface opposite the first surface. The first shaving razor is moved along the transparent first surface.

Abstract: The invention provides a razor cartridge with multiple blades and peg(s) or pegged support members that aid in the control of the blades by restricting fore and aft blade movement, which in turn, reduces the amplitude of blade deflection and/or vibration during shaving. This reduction provided by the pegs improves shaving performance. Blades rest between pegs which are rounded or shaped such that the blade bottom portion contacts the peg at one point, forming a single line of contact. The pegs may be in a slalom-like, linear (with one or more peg columns), or offset arrangement. Pegs or pegged support members may be at any location of the razor blade assembly; for instance, at the center and/or at blade slot ends. Pegs may each be of different shapes and may or may not be equidistant or at the same heights as each other, depending on blade spans and exposures.

Abstract: A razor cartridge that includes a housing, at least one support, movably mounted to the housing along a first degree of freedom, the support including a lower portion having an extremity, an upper portion having an extremity, and a bent portion intermediate the lower and upper portions, the portions having parallel first and second faces. The razor cartridge also includes a razor blade having a cutting edge and a fixation portion fixed on the second face of the upper portion of the support, where the extremities are rounded along a whole length of the support extending in a longitudinal direction.

Abstract: A device and a method for attaching a cover to a structure such as a boat. A plurality of complementary configured ferrous and magnetic fasteners is used. The existing fasteners on the boat may be removed or modified to secure the new fasteners. The existing fasteners on the cover may receive a replacement fastener.

Abstract: A razor cartridge that includes a housing, at least one support, received by the housing, and having parallel first and second faces, the support having a lower portion, an upper portion, and a bent portion intermediate the lower and upper portions, a razor blade having a cutting edge and a fixation portion fixed on the second face of the upper portion of the support, where the second face of the support has a recess extending at least in the bent portion.

Abstract: A razor cartridge includes razor blade assemblies having an inter-blade guard attached to a side of a razor blade. The razor blade is formed from strip that is manufactured including a thermal oxidation process to form a chromium oxide layer on the side surface of the razor blade. This oxide film prevents electrochemical corrosion of the razor blade that may be visible to a user and prevents real or perceived premature failure of the razor blade and thus the razor cartridge during its extended life. The razor blade assembly may also have an array of closely spaced droplets of a liquid adapted to inhibit corrosion of the razor blade applied to the side of the razor blade visible to a user.

Abstract: A novel guard structure of a razor is shown including rows of elongated hard plastic protrusions having rounded (e.g., not sharp or pointed) tips arranged on a tip curved profile. The rounded valleys between the protrusions are also arranged on a curved profile which may be different than that of the tip curved profile. The valleys encompass an inner protrusion volume which increases going back to front end of the guard structure. Preferably, the front end volumes are larger than the back end inner protrusion volumes to assist in trapping and distributing having aid. In one embodiment having six protrusions, the inner protrusion volume between a second and third protrusion is the largest, while a volume between first and second protrusion is the second largest volume. The guard structure is disposed in front of the blades which are formed within the housing and may desirably extend past the front end of the housing.

Abstract: Razors are described herein. In some instances the razors include a safety razor blade unit that includes a guard, a cap, and at least two blades with parallel sharpened edges located between the guard and cap. A first blade defines a blade edge nearer the guard and a second blade defines a blade edge nearer the cap. The first blade has a cutter force greater than the cutter force of the second blade. In some instances the razors provide a comfortable shave having improved closeness.

Abstract: A razor cartridge has a housing, a guard located at a front of the housing and a cap located at a rear of the housing. A skin contact element is disposed in the housing partway between the guard and the cap. A skin contact plane defines a plane tangential to the guard and the skin contact element and a plane tangential to the skin contact element and the cap. One or more blades are located between the guard and the skin contact element, each of the blades having a cutting edge located at a distance y1 between 70 ?m and 300 ?m and at an angle ?1 between 20° and 45° below the skin contact plane. One or more blades are located between the skin contact element and the cap, each of the blades having a cutting edge located at an angle ?2 above or below the skin contact plane, wherein ?2 is lower in magnitude than ?1.

Abstract: A disposable razor device includes a handle with a distal end, a proximal end, and a body extending therebetween, a fixed head integral with the handle, at least one fixed razor blade attached to a bottom edge of the fixed head, and a removable head with a protection strip and at least one razor blade inserted therein. The removable head is configured to be attached to and removed from the fixed head of the razor device. A push button release mechanism may be positioned on the handle, wherein the actuation of the push button allows the removable head to be detached from the fixed head. The removable head may include two razor blades. The protection strip is positioned above the two razor blades in the removable head. The two razor blades of the removable head may be positioned above the fixed razor blade of the fixed head.

Abstract: A shaving razor cartridge with a housing having a guard toward a front of the housing and a cap toward a rear of the housing. The cap has a crest. A leading blade is mounted to housing nearest the guard and a trailing blade mounted to the housing nearest the cap. Each blade has a blade edge. The blades define a blade plane tangent to the edge of the leading blade and the edge of the trailing blade. The cap having a cap span from the edge of the trailing blade to the crest and a cap height from the crest to the blade plane. A ratio of the cap span to the cap height is about 25:1 to about 70:1.

Abstract: An efficient and soft safety razor unit is provided including at least one blade with a sharp cutting edge extending lengthwise of the blade unit, built in an inverted “V” shape, in the first embodiment, or in a “V” shape, in another embodiment, the support structure has the same shape, so that, at shaving time, the blade or blade cut every single hair of the beard (or another part of the body, for example legs, or chest, etc.) with an angle corresponding to the angle in which the “V” has been built, producing or achieving a more efficient and softer beard cut, due to the “guillotine” effect on each beard hair produced by the inclined blades. This safety razor unit may have one or more blades (two, three, four, etc.) all of them made in an inverted “V” shape, or in the normal “V” shape and with the vortex rounded, so that the probability of skin injury is reduced to a minimum.

Abstract: Replaceable shaving assemblies are disclosed that include a razor cartridge comprising: an elongated housing defining a central open area, and, adjacent each short edge of the housing, a clip-receiving aperture and a clip-receiving channel; a plurality of blades disposed within the open area of the housing, and a pair of clips, each clip having a first leg and a second leg, the first leg extending through the clip-receiving aperture and being bent against a lower surface of the housing, and the second leg being wrapped around the housing and seated in the clip-receiving channel. Shaving systems including such shaving assemblies are also disclosed, as are methods of using such shaving systems and methods of manufacturing these cartridges.

Abstract: A shaving blade unit having a housing that includes a primary cap, a primary guard, an upper face, and a rear face. The shaving blade unit also includes a first primary blade located between the primary cap and the primary guard and extending at said the upper face, a first spacer stacked with the first primary blade, and a trimming blade extending at the rear face of the housing where the trimming blade is unreleasably fixed to the first spacer.

Abstract: A fingertip mountable shaving device is provided by a flexible and breathable substrate layer including a first shaving surface, and a second adhesive surface opposite to the first shaving surface. The first shaving surface includes a plurality of rubber strips along the vertical peripheral edge and a plurality of blade assemblies affixed at predetermined locations. The blade assemblies of include a vertical stack of a plurality of rotary blades of different diameters alternately interspaced by spacers and having a hemi-spherical protective cap with a vertical stem, on the top. The second adhesive surface is coated with an adhesive suitable for temporarily mounting the device on a fingertip and is covered with a releasably connected protective peel off layer. The device can safely and closely shave hair from the face and other difficult to reach body surfaces, such as within the ear or nostrils.

Abstract: A shaving razor includes a cartridge having a cartridge housing and a handle. The cartridge housing has a front edge, a rear edge and two side edges extending from the front edge to the rear edge. One or more shaving blades are located on the housing and between the front edge and the rear edge. A connecting member is connected to the cartridge housing and includes a deflectable element defining at least a portion of an opening extending through the connecting member. The handle includes a handle interconnect member that includes a protrusion having an enlarged distal end and angled side surfaces extending from the distal end to a base.

Abstract: The present invention relates to a razor cartridge capable of simultaneously shaving flat and sharply curved surfaces, said razor cartridge comprising: a blade housing, on which a plurality of razor blades are formed; and an upper housing coupled to the blade housing and defining a rectangular opening for outwardly exposing the edges of the razor blades to enable the latter to contact the skin, wherein the blade housing includes a first razor blade mounting portion and a second razor blade mounting portion that define a plurality of slots to which the razor blades are coupled, and a hinge portion connects the first razor blade mounting portion and the second razor blade mounting portion.

Abstract: A handle for a shaving razor is described in which the handle comprises a grip portion and a neck portion coupled to an end of the grip portion. The neck portion comprises a frame coupled to the end of the grip portion, the frame comprising a pin; a pod rotatably coupled to the frame, the pod defining an aperture to receive the pin of the frame, wherein the pod is configured to rotate about an axis substantially perpendicular to a length of the grip portion; and a spring coupled to the pod, wherein the spring generates a return torque when the pod is rotated.

Abstract: A razor cartridge has a housing having a front and a rear. At least two adjacent blades are provided, each pair having a leading blade and a trailing blade. Each of the leading and trailing blades having a cutting edge directed towards a front of the housing, the cutting edge of the leading blade being positioned between the cutting edge of the trailing blade and the front of the housing. A span ?s of less than 1.0 mm is provided between the cutting edges of at least one adjacent pair of trailing and leading blades and an inter-blade gap ?g is provided between said pair of adjacent leading and trailing blades, measured at the shortest distance between the adjacent leading and trailing blades, wherein the gap ?g is less than or equal to the span and greater than 0.15 mm.

Abstract: A hair removal device having a handle with a first interior wall and a second opposing interior wall that has a tapered surface. A cover is mounted to the handle. A dispensing unit having a first and second position is within the handle. The dispensing unit has a reservoir containing a liquid, a pump in liquid communication with the reservoir in the second position, and first and second connectors that are spaced apart. The mounting of the cover to the handle urges at least one of the connectors to slide along the tapered surface forcing the first and second connectors toward each other.

Abstract: Blade cartridges and razors employing such blade cartridges are provided. The cartridges contain a guard situated primarily on its leading edge that includes an array of flexible fins that extend in multiple directions.

Abstract: A shaving blade assembly including a blade unit and a skin contact member. A razor including a razor handle and such a shaving blade assembly. The blade unit includes at least one shaving blade having a cutting edge. The blade unit has a blade unit skin contact surface area, where the blade unit and the skin contact member have a shaving blade assembly skin contact surface area. The ratio between the shaving blade assembly skin contact surface area and the blade unit skin contact surface area is between approximately 2 and 3.1. The skin contact member can include a leading planar surface and a trailing planar surface defining a contact plane, and the contact plane and the shaving plane are parallel and the distance between the contact plane and the shaving plane is between approximately 0.2 mm and 0.6 mm.

Abstract: A razor has a holder, a holder handle defining a razor axis, a cross-piece installed in the holder along the razor axis, and up to four pairs of blades. The holder and holder handle collectively form a T-shape structure. Each of the blades in each of the pairs is installed in the holder on a respective side of the cross-piece and at sharp blade setting angle and symmetrical about the cross-piece. The blade setting angle is 75-80°, and the blade setting angle of each preceding blade pair in the direction of the razor movement is less than the setting angle of a subsequent blade pair. The invention makes it possible to increase the efficiency and ease of shaving and to reduce the production cost of the razor.

Abstract: The present invention relates to a cutting tool, in particular in the form of a razor blade, a scalpel, a knife, a machine knife, scissors etc., which has a synthetic diamond layer with a cutting edge. The diamond layer thereby consists of fine-crystalline diamond.

Abstract: A shaving demonstration apparatus having a rotatable support surface. A drive unit is operatively connected to the rotatable support surface. A fixture is spaced apart from the rotatable support surface. A first shaving razor has a first handle having a central longitudinal axis, said handle mounted to the fixture. A first blade cartridge unit is mounted to an end of the first handle, and rotates about a torsional rotation axis with respect to said handle, wherein the central longitudinal axis and the torsional rotational axis are generally parallel. The first blade cartridge unit contacts the rotatable support surface.

Abstract: An accessory for use with a shaving device includes a hollow flexible body having an open first end constructed to receive a free end of the shaving device that is opposite a razor blade and a closed second end. The closed second end has an arcuate shape. The accessory also includes a plurality of micro-blades disposed at the closed second end along an arcuate-shaped exterior surface thereof for trimming hair located in difficult to reach rounded facial areas.

Abstract: A replacement cartridge for a safety razor includes a dispensing head and a reservoir for a flowable shaving aid material. A removable shield is between the reservoir and the dispensing head and the shield interrupts fluid communication between channels of the reservoir and the dispensing head when the shield is in place. Fluid communication is permitted when the shield is removed. Removal of the shield is a onetime event. The shield can be a thermoplastic film. A razor cartridge can be disposed adjacent the dispensing head and the housing of the razor cartridge can be integrally formed with the housing of the dispensing head.

Abstract: A razor handle comprising a main body portion and a connector for connecting, in use, the main body portion to a razor cartridge, the main body portion comprising first and second spaced-apart fingertip engaging surfaces adapted, in use, to be engagable with opposite sides of a user's fingertips and a grip portion interposed between the fingertip engaging surfaces. The grip portion is substantially transverse to at least one of the finger engaging surfaces. A first one of the finger engaging surfaces preferably comprises first and second spaced apart fingertip engaging surface portions, one of which fingertip engaging surface portions is located proximally to the connector and most preferably substantially above and behind a trailing edge of the razor cartridge.

Abstract: A shaving razor having integrally formed blade guards. A generally monolithic body is formed from a suitable material such as thermoplastic to define blade channels for a plurality of blades, 1 blade retained in each channel the cutting edges of which define a cutting plane. A plurality of blade guards is formed as part of the body such that the shaving plane passes through the blade guards with one blade guard forward of each blade in the cutting direction. Other embodiments are also described and claimed.

Abstract: Systems, methods and devices for shaving including one or more of a curved shaving cartridge, a process of manufacture thereof; and a double cartridge shaving device and methods of use and/or manufacture thereof.

Abstract: A safety razor is disclosed, and includes a handle and a shaving head. The shaving head defines a longitudinal axis. The shaving head is mounted to a distal portion of the handle and has a rest position. The shaving head is configured to rotate out of the rest position in a first radial direction transverse to the longitudinal axis defined by the handle. The shaving head is inhibited from rotation out of the rest position in a second radial direction opposite from the first radial direction.

Abstract: A razor cartridge is provided including a blade unit having a first side wall, a second side wall, and a pair of end walls interconnecting the first side wall and the second side wall and one or both of the side walls of the blade unit having at least one connection member. A plurality of blades secured to the blade unit with a clip positioned at each end of the blade unit adjacent to the end walls. A frame is provided having a first interior wall and a second interior wall spaced apart from first interior wall that define an opening extending completely through the frame. One or more of the interior walls of the frame include at least one connection member, the latter engaged with the at least one connection member of the blade unit so that the frame is secured to the blade unit.