Guards Patents (Class 30/77)
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Publication number: 20090144984Abstract: An electric hair removal apparatus includes a housing adapted to be held in the hand, a guard cap mounted on the housing for pivotal movement about a pivot axis, and a control element with which a switch can be activated. The control element is arranged inside an at least locally circular recess of the guard cap. The pivot axis of the guard cap is constructed to be eccentric relative to the recess of the guard cap.Type: ApplicationFiled: April 26, 2006Publication date: June 11, 2009Inventor: Roland Ullmann
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Patent number: 7540088Abstract: A safety razor includes a handle and a razor blade unit on top thereof, wherein the razor blade unit has a movable skin contact member, the skin contact member having a leading skin contact part and a trailing skin contact part, and during safety razor use, the leading skin contact part and trailing skin contact part can swing to the front and back with respect to the razor blade body, thereby enabling smooth shaving, whether for a safety razor having no guard part or for a safety razor having a guard part similar to standard safety razors.Type: GrantFiled: January 30, 2006Date of Patent: June 2, 2009Assignee: Kai R & D Center Co., Ltd.Inventor: Takahiro Takeshita
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Publication number: 20090126196Abstract: A safety razor blade unit has two or more blades (19,20,21) with parallel cutting edges (24,25,26) mounted in a frame (10) between guard and cap surfaces so that the average inter-blade span is not greater than 1.25 mm, and the wash through index, a measure of the rinsability obtained by a method defined in the specification, is not less than 0.20. The combination of narrow inter-blade spans and good rinsability enables enhanced comfort levels during shaving to be achieved.Type: ApplicationFiled: December 9, 2008Publication date: May 21, 2009Inventors: Bernard Gilder, Ian Saker
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Publication number: 20090083982Abstract: A safety razor cartridge includes a plurality of elongated blades disposed in a housing between a guard and a cap. The blades have substantially parallel sharp cutting edges. The plurality has first, second, and third consecutively disposed cutting edges. A distance between the first and second cutting edges is greater than a distance between the second and third cutting edges.Type: ApplicationFiled: September 28, 2007Publication date: April 2, 2009Inventor: Edward Neill Forsdike
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Publication number: 20090077809Abstract: A shaving razor blade unit including a housing having a primary guard at a front of the housing and a primary cap at an upper surface at a back of the housing, one or more primary shaving blades between the primary guard and the primary cap, a rear wall having a rear exterior surface extending downward from the upper surface at the back of the housing to a terminating surface, and a trimming blade mounted on the rear wall and having a trimming cutting edge extending at least partially beyond the terminating surface inside of an imaginary extension of the rear exterior surface, the rear exterior surface defining a secondary cap for the trimming blade. The back of the housing includes a trimming guard including spaced guard segments.Type: ApplicationFiled: October 14, 2008Publication date: March 26, 2009Inventors: Alejandro Lee, Robert Trotta
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Publication number: 20090071006Abstract: A safety razor blade unit is provided. The safety razor blade unit includes at least one elongate blade and a shaving aid member. The shaving aid member extends longitudinally of the blade(s) and has a skin contacting surface exposed for contact with a skin of a user during shaving. The shaving aid member includes a multiplicity of pockets. Each of the pockets open at the skin contacting surface and are defined by side wall portions depending inward from the skin contacting surface.Type: ApplicationFiled: September 14, 2007Publication date: March 19, 2009Inventor: Michael Hal Bruno
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Publication number: 20090071007Abstract: A safety razor blade unit is provided. The safety razor blade unit includes at least one elongate blade and a shaving aid member. The shaving aid member extends longitudinally of the blade(s) and has a skin contacting surface exposed for contact with a skin of a user during shaving. The shaving aid member includes a multiplicity of protuberances. Each of the protuberances have a base portion at the skin contacting surface and are defined by side wall portions extending away from the skin contacting surface.Type: ApplicationFiled: September 14, 2007Publication date: March 19, 2009Inventor: Michael Hal Bruno
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Patent number: 7448135Abstract: Multi-blade razors are provided, having blades with differing properties. In one aspect, a razor is provided that includes a safety razor blade unit comprising a guard, a cap, and first, second and third blades with parallel sharpened edges located between the guard and cap with the first blade closest to the cap, the third blade furthest from the cap, and the second blade disposed between the first and third blades, the blades having first, second and third tip radii, respectively, at least two of the three blades having different tip radii, and at least two of the blades having different coefficients of friction.Type: GrantFiled: March 29, 2006Date of Patent: November 11, 2008Assignee: The Gillette CompanyInventors: Andrew Zhuk, Weili Yu, Hoang Mai Trankiem, Neville Sonnenberg, Kevin L. Powell, Yiqian Eric Liu, Robert L. Lescanec, Steve S. Hahn, Joseph A. DePuydt, Alan Crook, Cinzia Simonis Cloke
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Publication number: 20080229583Abstract: A razor cartridge is provided with a skin engaging structure at the cap and/or guard surface of the razor cartridge. The skin engaging structure has an array of closely spaced elongated protrusions integrally formed with a substrate. In use, the protrusions produce a pleasant tactile sensation tending to reduce shaving discomfort. The protrusions are formed by closely packed molded flexible filaments that can be less than 0.25 mm wide and have spacing between adjacent protrusions less than 0.2 mm. The protrusions can have a density greater than 5 protrusions per mm2. The skin engaging structure can be molded from e.g. an olefin polymer. The substrate can be integrally formed with a housing of the razor cartridge.Type: ApplicationFiled: March 17, 2008Publication date: September 25, 2008Applicant: EVEREADY BATTERY COMPANY, INC.Inventors: Stephan Fischer, Jochen Thoene
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Publication number: 20080189953Abstract: A safety razor has a blade unit having at least one blade with a sharp cutting edge. A dielectric handle is configured to carry the blade unit and a conductive ground member is disposed within the handle. The safety razor has an electrically operated device. An electrical arrangement having a sensor electrically coupled to the blade unit and the ground member senses skin contact with the blade unit and actuates the device based on the sensing.Type: ApplicationFiled: May 3, 2007Publication date: August 14, 2008Inventors: Paul Michael Jessemey, Roy Nicoll, Robert Anthony Hart
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Publication number: 20080172878Abstract: A blade unit for a safety razor has a plurality of blades (7, 8, 9) with cutting edges (10, 11, 12) positioned between first guard and cap surfaces (26, 29) at an upper face of the unit, and a further blade (36) with a cutting edge (37) positioned between guard and cap surfaces (33, 34) at a rear face of the unit. The further blade at the rear face is intended for shaving skin areas, such as directly below the nostrils or in-front of the ears, to which access is restricted. A rinsing passage (35) connects a gap between the cutting edge (37) of the further blade (86) with an opening (38) at the bottom face of the blade unit for clearance of shaving debris and soap from the underside of the further blade (36) to the underside of the blade unit.Type: ApplicationFiled: March 20, 2008Publication date: July 24, 2008Inventor: Richard Hart Luxton
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Patent number: 7197825Abstract: A shaving blade unit includes a plastic housing having a front portion and a rear portion and two side surfaces extending from the front portion to the rear portion. The housing has a length extending from one side surface to the other side surface. Positioned between the front and rear surface of the housing are one or more shaving blades having a blade length extending along respective one or more parallel blade axes. A guard at the front portion of the housing includes an elastomeric member that extends along a guard axis that is parallel to the respective one or more blade axes. The elastomeric member has a length along the guard axis that is greater than or equal to the blade length.Type: GrantFiled: March 11, 2004Date of Patent: April 3, 2007Assignee: The Gillette CompanyInventors: Vincent P. Walker, Andrew Keene
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Patent number: 7178243Abstract: A razor blade unit for safety razor has optimized shape and dimensions for body shaving, especially the regions of the axillae. The blade unit has an elongate blade with a rectilinear sharpened edge, and a skin contacting surface at which the length is 1 to 4 times the width and not greater than 60 mm, preferably 40 to 45 mm. The skin contacting surface has a footprint area of at least 450 mm2, preferably 600 to 750 mm2, and a circularity which is not less than the lower of (i) 65%, and (ii) the circularity of a rectangle with the same length and width as the skin contacting surface and with corner radii of 30% of the width. In a plane perpendicular to the blade edge the skin contacting surface is convex and shaped to make at least three point contact with an imaginary circumscribing circle with a radius of 15 to 70 mm, preferably 25 mm. Guard cap surfaces in front of and behind the blade edge each have a skin contact area of at least 140 mm2, and their combined area is preferably at least 400 mm2, e.g.Type: GrantFiled: November 10, 2004Date of Patent: February 20, 2007Assignee: The Gillette CompanyInventors: Frank Edward Brown, Brian Oldroyd
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Patent number: 7111401Abstract: A detachable razor cartridge has blade seat and at least one blade having a rectilinear cutting edge. An in-line row of integral guard elements project in cantilever position from the blade seat and extend in spaced relation to and beyond the cutting edge of the blade so that the cutting edge of the blade is unobstructed along its entire cutting length. Enlargements at the free ends of the guard elements disposed forward of and in spaced relation to the blade cutting edge may be provided in a variety of configurations and arrangements for smooth skin engagement to control skin flow and limit the degree of blade cutting edge exposure to skin being shaved.Type: GrantFiled: February 2, 2004Date of Patent: September 26, 2006Assignee: Eveready Battery Company, Inc.Inventor: Paul D. Richard
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Patent number: 7043840Abstract: A shaving razor blade unit that has a plurality of blades and a guard that includes two groups of rows of elongated, elastomeric fins arranged generally parallel to the cutting edges of the blades. The first group of fins has tips with generally uniform base to tip heights of a first dimension, and the second group in has tips with generally uniform base to tip heights of a second dimension, the second dimension being less than one fifth of the first dimension. Also disclosed are elastomeric guard fins having base to tip heights less than 0.15 mm, and the fins being the last skin engaging structure contacted by a user's skin before contacting the blades.Type: GrantFiled: January 6, 2004Date of Patent: May 16, 2006Assignee: The Gillette CompanyInventors: Vincent P. Walker, Jr., Stephen C. Metcalf
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Patent number: 6941659Abstract: A guard of a safety razor blade unit has a lubricating strip (24) disposed in front of a backstop (23), and the edge of the backstop which contacts the skin during shaving is castellated to define channels (30) separated by lands (31). The channels (30) enable an effective layer of lubricant to remain on the skin until the blade positioned to the rear of the backstop contacts the skin in the course of a shaving stroke.Type: GrantFiled: October 15, 2003Date of Patent: September 13, 2005Assignee: The Gillette CompanyInventor: Bernard Gilder
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Patent number: 6889438Abstract: A safety shaving assembly for attachment to a razor handle has optimised shape and dimensions for body shaving, especially the regions of the underarm. The shaving assembly has an elongate blade with a linear sharpened edge, and a skin contacting surface whose length is 1 to 4 times the width, preferably 1 to 2.8 times the width, has a large footprint area of at least 450 mm2, preferably at least 600 mm2, and a circularity (as herein defined to relate the area enclosed by the perimeter to the length of the perimeter) of not less than 70%. The shaving assembly is substantially inflexible over a major longitudinal dimension in use. In preferred embodiments the circularity is about 80%. A preferred shape is an oval resembling a rectangle with semi-circular ends. The forward and rearward skin-engaging surfaces in front of and behind the blade edge each can have a skin contact area of at least 140 mm2, and their combined areas is preferably at least 400 mm2.Type: GrantFiled: September 3, 2003Date of Patent: May 10, 2005Assignee: The Gillette CompanyInventors: Frank Edward Brown, Brian Oldroyd
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Patent number: 6792682Abstract: A razor cartridge is provided that includes a seat, a cap, one or more razor blades, and a relief centrally located in an aft face of the cap. The relief enables the user to get the cutting edges of the one or more razor blades in closer proximity to a feature (e.g., a nose) than is possible using currently available razor cartridges. In a preferred embodiment of the cartridge, a shaving aid strip is disposed in the contact face, positioned aft of the forward face of the cap and forward of the relief. The shaving aid strip preferably reflects the contour of the aft face of the cartridge that includes the relief.Type: GrantFiled: December 19, 2002Date of Patent: September 21, 2004Assignee: Eveready Battery Company, Inc.Inventors: Thomas A. Follo, Paul R. Dansreau
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Publication number: 20040128835Abstract: A blade cartridge for a wet shaving device comprises a housing including a lower housing member and an upper housing member cooperating to define a cavity. First and second blade assemblies are disposed within the cavity. Each of the first and second blade assemblies includes at least one blade defining a cutting edge, wherein the cutting edge of the blade of the first blade assembly generally faces the cutting edge of the blade of the second blade assembly to permit bidirectional shaving.Type: ApplicationFiled: October 16, 2003Publication date: July 8, 2004Applicant: Eveready Battery Company, Inc.Inventors: David C. Coffin, Randy Nicolosi, Andrew J. Pennella
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Publication number: 20040103538Abstract: A razor blade cartridge has a movable guide unit including a spacer and a plurality of fingers shaped and sized so that when the guide unit moves frontward between a leading blade and a following blade spaced rearward from the leading blade, the fingers engage skin flowing into space between the leading and following blades to decrease contact between the skin and the cutting edge of the following blade.Type: ApplicationFiled: August 19, 2003Publication date: June 3, 2004Applicant: Eveready Battery Company, Inc.Inventors: Paul R. Dansreau, Paul D. Richard, Mark S. Peyser
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Patent number: 6675479Abstract: A shaving razor blade unit that has a plurality of blades and a guard that includes two groups of rows of elongated, elastomeric fins arranged generally parallel to the cutting edges of the blades. The first group of fins has tips with generally uniform base to tip heights of a first dimension, and the second group in has tips with generally uniform base to tip heights of a second dimension, the second dimension being less than one fifth of the first dimension. Also disclosed are elastomeric guard fins having base to tip heights less than 0.15 mm, and the fins being the last skin engaging structure contacted by a user's skin before contacting the blades.Type: GrantFiled: February 29, 2000Date of Patent: January 13, 2004Assignee: The Gillette CompanyInventors: Vincent P. Walker, Jr., Stephen C. Metcalf
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Patent number: 6655029Abstract: A safety razor with a plurality of blade members which are covered by a guard plate. The guard plate is provided with a plurality of blade tip guards which are arranged along the blade tip edges of the blade members, and the blade tip edge of at least one of the plurality of blade members is not in contact with the blade tip guards of the guard plate and exposed between the blade tip guards.Type: GrantFiled: March 30, 1999Date of Patent: December 2, 2003Assignee: Kai R & D Center Co., Ltd.Inventor: Tatsuya Saito
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Publication number: 20030217470Abstract: A razor cartridge is provided that includes a frame, one or more razor blades, a guard having a contact surface, and a plurality of scoop pockets disposed in the contact surface of the guard. The one or more razor blades are attached to the frame, and each has a cutting edge. The guard, which has a length and a width, is disposed forward of the one or more razor blades. Each of the scoop pockets has a base surface, a first side surface, and a second side surface that extend between an open end and an aft end. The open end of each scoop pocket is forward of the respective aft end. Each scoop pocket also includes an aft side surface contiguous with the aft end. The scoop pockets are distributed along the length of the guard.Type: ApplicationFiled: January 28, 2003Publication date: November 27, 2003Applicant: Warner-Lambert LLCInventors: Thomas A. Follo, Paul Donald Richard
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Patent number: 6651342Abstract: A shaving razor blade unit that has a plurality of blades and a guard that includes two groups of rows of elongated, elastomeric fins arranged generally parallel to the cutting edges of the blades. The first group of fins has tips with increasing elevation with respect to a plane passing through the cutting edges, and the second group of fins has tips of generally uniform position relative to the plane. Also disclosed are a guard with at least six rows of elongated, elastomeric fins arranged generally parallel to the cutting edges of the blades; a guard that includes at least five rows of elongated, elastomeric fins that are arranged generally parallel to the cutting edges of the blades and generally increase in elevation with respect to a plane passing through the cutting edges of the blades in going from fins further from the blades to fins closer to the blades; and fins that converge from a base portion to a tip portion at an included angle of less than 14 degrees.Type: GrantFiled: February 29, 2000Date of Patent: November 25, 2003Assignee: The Gillette CompanyInventor: Vincent P. Walker, Jr.
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Patent number: 6601303Abstract: A safety razor blade unit has a guard structure (5) which includes a strip (10) of elastomeric material e.g. with projections such as fins (12) or tubes (35), and a backstop (13) disposed between the elastomeric strip (10) and the edge (20) of a leading blade (2), the backstop including a rigid wall (15) integrally moulded with the blade unit housing (1) and a resiliently deformable portion (17) integral with the elastomeric strip (10) and adapted to yield under forces experienced during shaving by being compressed against the rigid wall (15) or flexing downwardly.Type: GrantFiled: March 14, 2000Date of Patent: August 5, 2003Assignee: The Gillette CompanyInventors: Bernard Gilder, Paul Warrick
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Patent number: 6568084Abstract: A razor blade cartridge is disclosed for wet shaving. The razor blade cartridge includes a platform member having a blade seat and a guard member. A plurality of first guard ribs are disposed on the platform member, and a first blade is disposed on the blade seat. A spacer is disposed on the first blade, and a plurality of second guard ribs is disposed on the spacer. A second blade is disposed on the spacer, and a cap member is disposed on the second blade. A plurality of third guard ribs is disposed on the cap member proximate the skin engaging edge of the second blade. The first, second and third guard ribs are arranged in a number of shapes and positions relative to each other, which assist the shaver in controlling blade exposure and shaving angle. Typically, the blade exposure is positive at the trough portion between the guard ribs, and negative at the tip portion an a shaving plane on skin engaging portion of the guard ribs.Type: GrantFiled: June 21, 2001Date of Patent: May 27, 2003Assignee: American Safety Razor CompanyInventors: Gregory F. McCool, Jeffrey W. Wonderley
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Patent number: 6550141Abstract: Razor heads comprising at least one blade and a plurality of guard elements over the leading edge at a plurality of intermediate portions. According to preferred embodiments, the guard elements are integrally molded with at least one or more of a blade support, spacer element(s), forward guard member and cap member. The use of integrally molded guard elements facilitate efficient, quicker and less expensive manufacturing, provide greater design flexibility, and provide greater blade stability. Additionally, in preferred embodiments, when the molded guard elements are aligned with spacers, these guard elements do not interfere with the rinsability of the razor head. The intermediate guard elements also provide additional sites for the placement of shaving aids and other skin flow control materials such as materials having a relatively high coefficient of friction.Type: GrantFiled: July 28, 2000Date of Patent: April 22, 2003Assignee: Warner-Lambert CompanyInventors: David F. Rivers, Andrew Pennella, Paul D. Richard
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Patent number: 6539633Abstract: The invention relates to a razor (1) whose head (2) is provided with a protective member (4) in which it engages in removable manner for the purpose of protecting the cutting blade(s) (3) before use and possibly also after use, the razor (1) having at least one tongue (6) fixed either to the head or to the protective member, and engaging respectively either on a portion of the protective member or on the head in such a manner as to be broken on first separation of the protective member (4) and the head (2). The protective member is preferably a cap (4) that engages removably on the head (2) of the razor to protect the cutting blade(s) (3) before and after use, and the tongue (6) is fixed to the head (2) of the razor, engaging a portion of the protective cap during removal thereof.Type: GrantFiled: June 28, 2000Date of Patent: April 1, 2003Assignee: Societe BicInventor: Jean Bernard Rebaudieres
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Patent number: 6473970Abstract: A blade cartridge including one or more blades fixed between a platform member and a cap member. The blades have apertures that allow lubricants removed from a surface of a shaver by the cutting edge of the blade to be transported through the blade and supplied to the cutting edge of the adjacent blade or to a skin engaging surface of the cap member, whichever the case may be. The apertures in the blades define flow paths that allow lubricants to reach successive cutting edges or skin engaging surfaces, thereby reducing irritation to the shaver. The blades are spaced apart by spacers that are constructed with passages that allow the free flow of lubricant through adjacent flow paths. The cap member includes passages that allow the free flow of lubricating agents through the flow paths to the skin engaging surface of the cap member.Type: GrantFiled: March 30, 1998Date of Patent: November 5, 2002Assignee: American Safety Razor CompanyInventor: Frank Prochaska
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Publication number: 20020157259Abstract: A razor cartridge is provided that includes a frame, at least four razor blades, a guard that includes a contact surface, and a cap that includes a contact surface. The razor blades are supported by the frame. The guard is disposed forward of the razor blades and the cap is disposed aft of the razor blades. The razor blades are arranged so that the cutting edge of each razor blade is adjacent a plane that tangentially intersects the contact surfaces of the guard and the cap. As a result, each stroke of the razor exposes the surface being shaved to at least four razor blade cutting edges in succession. A unitary razor assembly that includes a head characterized in the same manner as the above-described cartridge is also provided.Type: ApplicationFiled: April 24, 2002Publication date: October 31, 2002Inventor: David C. Coffin
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Publication number: 20020116822Abstract: In a shaving razor using a blade cartridge, the reusable assembly of the razor includes a guard element and the blade cartridge is designed with no parts located in front of the blade edge or edges, and when the blade cartridge is installed in the reusable assembly, the guard element of the reusable assembly becomes located in front of the blade edge or edges of the blade cartridge to cooperate with the blade edges in a customary way to stretch the skin and erect the beard hairs in advance of the cutting edge. The blade cartridge is also movable about two different pivot axes to improve the safety of the razor during use.Type: ApplicationFiled: February 28, 2001Publication date: August 29, 2002Inventor: David C. Coffin
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Patent number: 6397473Abstract: Shaving systems are designed to provide greater uniformity to shaving forces over the skin-engaging portion of the skin-engaging element, such as a blade, guard element or cap member. According to one embodiment, at least one, and preferably a plurality of flexible blades are movably connected to a support by biasing members. One embodiment comprises a razor head comprising a plurality of blades which are movably connected to a flexible support structure in a manner which permits movement of the blades independent of the flexing of the blade(s) or the flexible support. According to another embodiment, at least one and most preferably a plurality of blades are connected to a support block which is movably supported in a “floating” manner within a housing by biasing members.Type: GrantFiled: July 25, 1997Date of Patent: June 4, 2002Assignee: Warner-Lambert CompanyInventor: Gregory Clark
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Patent number: 6378211Abstract: A blade cartridge including one or more blades fixed between a platform member and a cap member. The present invention provides a novel blade cartridge including one or more protruding members, or guard ribs, positioned proximate the skin engaging edges of the blades such that a portion of the blade adjacent the guard ribs has a negative exposure. The guard rib preferably has an arcuate contact surface and is narrow in thickness in a direction along the skin engaging edge. Preferably a plurality of guard ribs are evenly positioned along the blade cartridge. In addition to the guard ribs on the platform member, the present invention further includes protruding members, or guard ribs, on the cap member. The guard ribs on the platform member are preferably aligned with and substantially continuous with the guard ribs on the cap member. In a further embodiment, the blade cartridge includes a spacer separating the first blade and a second blade.Type: GrantFiled: September 24, 1998Date of Patent: April 30, 2002Assignee: American Safety Razor CompanyInventors: Gregory McCool, Jeffrey Wonderley
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Publication number: 20020046465Abstract: A razor blade cartridge is disclosed for wet shaving. The razor blade cartridge includes a platform member having a blade seat and a guard member. A plurality of first guard ribs are disposed on the platform member, and a first blade is disposed on the blade seat. A spacer is disposed on the first blade, and a plurality of second guard ribs is disposed on the spacer. A second blade is disposed on the spacer, and a cap member is disposed on the second blade. A plurality of third guard ribs is disposed on the cap member proximate the skin engaging edge of the second blade. The first, second and third guard ribs are arranged in a number of shapes and positions relative to each other, which assist the shaver in controlling blade exposure and shaving angle. Typically, the blade exposure is positive at the trough portion between the guard ribs, and negative at the tip portion an a shaving plane on skin engaging portion of the guard ribs.Type: ApplicationFiled: June 21, 2001Publication date: April 25, 2002Inventors: Gregory F. McCool, Jeffrey W. Wonderley
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Publication number: 20020035786Abstract: A safety razor blade unit has a guard structure (5) which includes a strip (10) of elastomeric material e.g. with projections such as fins (12) or tubes (35), and a backstop (13) disposed between the elastomeric strip (10) and the edge (20) of a leading blade (2), the backstop including a rigid wall (15) integrally molded with the blade unit housing (1) and a resiliently deformable portion (17) integral with the elastomeric strip (10) and adapted to yield under forces experienced during shaving by being compressed against the rigid wall (15) or flexing downwardly.Type: ApplicationFiled: March 14, 2000Publication date: March 28, 2002Inventors: Bernard Gilder, Paul Warrick
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Publication number: 20020000040Abstract: A guard of a safety razor blade unit has a lubricating strip (24) disposed in front of a backstop (23), and the edge of the backstop which contacts the skin during shaving is castellated to define channels (30) separated by lands (31). The channels (30) enable an effective layer of lubricant to remain on the skin until the blade positioned to the rear of the backstop contacts the skin in the course of a shaving stroke.Type: ApplicationFiled: May 9, 2001Publication date: January 3, 2002Applicant: THE GILLETTE COMPANYInventor: Bernard Gilder
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Publication number: 20010054235Abstract: A safety razor with a plurality of blade members which are covered by a guard plate. The guard plate is provided with a plurality of blade tip guards which are arranged along the blade tip edges of the blade members, and the blade tip edge of at least one of the plurality of blade members is not in contact with the blade tip guards of the guard plate and exposed between the blade tip guards.Type: ApplicationFiled: March 30, 1999Publication date: December 27, 2001Inventor: TATSUYA SAITO
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Patent number: 6263576Abstract: My improved hand-held razor ensures smoother hair removal on any human body part and even on furry domestic animals. The angled or precut blade or blades in the razor head result in angled orientations instead of straight across the longitudinal length of the razor head. The angle of the blade(s) provides a slicing motion which is less likely to tear hair roots and make infection of pores more probable.Type: GrantFiled: September 7, 1999Date of Patent: July 24, 2001Inventors: Joseph Drapak, Paulette Sanders
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Patent number: 6243951Abstract: A safety razor blade unit having a plurality of blades presenting substantially parallel blade edges. The blades are disposed between a guard and a cap. The blades are independently movable and are carried by supports. At least one of the supports has spaced portions projecting forwardly of the associated blade to present skin contacting potions.Type: GrantFiled: July 29, 1999Date of Patent: June 12, 2001Assignee: The Gillette CompanyInventor: Brian Oldroyd
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Patent number: 6212777Abstract: A safety razor blade unit including a guard, a cap, and a group of three blades with parallel sharpened edges located between the guard and cap, the first blade defining a blade edge nearest the guard having a negative exposure not less than −0.2 mm, and the third blade defining a blade edge nearest the cap having a positive exposure of not greater than +0.2 mm, the second blade defining a blade edge having an exposure not less than the exposure of the first blade and not greater than the exposure of the third blade.Type: GrantFiled: May 17, 1996Date of Patent: April 10, 2001Assignee: The Gillette CompanyInventors: Bernard Gilder, John Charles Terry
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Patent number: 6185823Abstract: A razor blade unit for a safety razor has optimised shape and dimensions for body shaving, especially the regions of the axillae. The blade unit has an elongate blade with a rectilinear sharpened edge, and a skin contacting surface at which the length is 1 to 4 times the width and not greater than 60 mm, preferably 40 to 45 mm. The skin contacting surface has a footprint area of at least 450 mm2, preferably 600 to 750 mm2, and a circularity which is not less than the lower of (i) 64%, and (ii) the circularity of a rectangle with the same length and width as the skin contacting surface and with corner radii of 30% of the width. In a plane perpendicular to the blade edge the skin contacting surface is convex and shaped to make at least three point contact with an imaginary circumscribing circle with a radius of 15 to 70 mm, preferably 25 mm. Guard and cap surfaces in front of and behind the blade edge each have a skin contact area of at least 140 mm2, and their combined areas is preferably at least 400 mm2, e.Type: GrantFiled: April 21, 1998Date of Patent: February 13, 2001Assignee: The Gillette CompanyInventors: Frank Edward Brown, Brian Oldroyd
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Patent number: 6167625Abstract: A shaving implement, such as a disposable cartridge or razor, comprises a shaving head which includes a skin-contacting element in the form of a series of cavities and projections. The projections are arranged in the cavities in order to provide a unique sensation to the user during shaving. The cavities are arranged so as to meter the amount of shaving cream which is on the surface being shaved.Type: GrantFiled: May 18, 1999Date of Patent: January 2, 2001Assignee: Warner-Lambert CompanyInventors: Brian F. King, David C. Coffin, Michael P. O'Malley, Andrew J. Pennella
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Patent number: 5953819Abstract: A skin contacting member for a razor or like shaving device. In use, the skin contacting member is located ahead of a blade or blades of the razor. The skin contacting member has channels formed by stiff wall segments that extend perpendicular to the blade cutting edge for the passage of hairs, and resilient lateral portions that extend into the channel forming narrow regions that engage and pull the hairs passing through the channels in advance of the blades.Type: GrantFiled: September 25, 1997Date of Patent: September 21, 1999Assignee: The Gillette CompanyInventors: Graham John Simms, Oliver David Oglesby
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Patent number: 5903979Abstract: A safety razor blade unit (FIG. 1) comprises at least one elongate blade (1, 2) and a skin-engaging member (3) extending longitudinally of the blade or blades (1, 2) and defining a surface (9) exposed for contact with the skin during shaving. A plurality of pockets (10) is provided in the skin-engaging member (3) for holding respective portions of a shaving enhancement product (FIG. 2). The pockets (10) are distributed along the surface (9) and across the width thereof in an array spanning substantially the whole of the area of the skin-contacting surface (9). The pockets (10) can be in communication with reservoir chamber (4) containing the shave enhancement product.Type: GrantFiled: April 29, 1997Date of Patent: May 18, 1999Assignee: The Gillette CompanyInventor: Brian Oldroyd
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Patent number: 5794343Abstract: A razor blade assembly includes an elongate platform supporting a pair of blades and an elongate guard member disposed adjacent a forward edge of the platform. The guard member has a plurality of fins each spaced one from the other. In preferred embodiments each fin has its uppermost surface below a rearwardly disposed fin and the uppermost surfaces collectively lie on an outwardly convex arcuate surface, and each successively rearward fin is inclined more towards the leading blade edge than the preceding adjacent fin. The elongate platform is provided with a plurality of apertures extending through the platform between a plurality of webs and the guard member is molded in place onto the platform. Portions of the guard member material flow through the apertures and surround webs during the molding process to maintain the guard member in place.Type: GrantFiled: May 12, 1997Date of Patent: August 18, 1998Assignee: The Gillette CompanyInventors: Alejandro Lee, William C. Carson, III, Douglas R. Kohring
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Patent number: 5761814Abstract: A razor blade assembly has a body member containing blade means which may be resiliently mounted and biased outwardly from the body member. A wrap-around clip is provided at both sides of the body member, the clip having its ends terminating at the bottom surface of the body member. Means are provided for inhibiting movement of the clip ends relative to the bottom surface upon impact loading of the razor blade assembly.Type: GrantFiled: July 23, 1996Date of Patent: June 9, 1998Assignee: The Gillette CompanyInventors: Katherine Anderson, Ralph Kenneth Maider, Jr., Paul Nowak, Tzu-Jun Yen
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Patent number: 5630275Abstract: The various embodiments of the present invention are directed to razor heads having a plurality of cutting edges wherein the physical characteristics of the cutting edges are different from each other. Among the items which may be varied in the blades are the substrate material, coatings or shape. Preferably, the characteristics of the first blade should be such as to maximize the blade's cutting effect in relation to the skin/beard flow over the guard bar of the razor head. The subsequent blades are such as to maximize the cutting action as the skin flow over the first blade and on to the subsequent blades. In addition, one or more fencing elements may be disposed over discrete, spaced portions of one or both cutting edges to prevent those portions of the cutting edges from contacting the skin being shaved.Type: GrantFiled: September 1, 1995Date of Patent: May 20, 1997Assignee: Warner-Lambert CompanyInventor: Fred C. Wexler
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Patent number: 5560105Abstract: A blade has an edge exposed between a blade rest and a cap. A guard element extending perpendicularly to a longitudinal direction with respect to the blade contacts with a plurality of points on the edge to define a space between the user's skin and the edge during shaving. The guard element is kept under tension and pressively contacts an upper surface of the edge to apply force acting against the cutting resistance of whiskers to the blade. The guard element has a dent portion under the blade to reduce the distance between the user's skin and the edge.Type: GrantFiled: May 12, 1995Date of Patent: October 1, 1996Assignee: Feather Safety Razor Co., Ltd.Inventor: Masao Ichiyanagi
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Patent number: 5456009Abstract: Shaving systems having a plurality of cutting edges. At least one fencing element is disposed proximate one cutting edge to prevent a plurality of discrete portions of that first cutting edge from contacting the skin surface being shaved. The other cutting edge is provided with a substantially continuously unobstructed cutting edge. The present invention provides a razor head design permitting skin flow characteristics of shaving to be altered by the fenced blade to affect safety in shaving while the substantially continuously unobstructed cutting edge is exposed to deliver a closeness not obtainable with a totally fenced shaving system.Type: GrantFiled: August 23, 1994Date of Patent: October 10, 1995Assignee: Warner-Lambert CompanyInventor: Fred C. Wexler
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Patent number: RE36816Abstract: A razor blade body in the form of a cartridge structure includes a guard member assembled thereon forward of, and extending parallel to, the blade or blades. The guard is of a two part molded structure having an upper portion of elastomeric material with a plurality of upwardly projecting protrusions formed thereon and a lower base portion of rigid plastic material having a downwardly projecting V-shaped cross-sectional portion. A pair of upwardly projecting elements are disposed in spaced relation forming a recess on the blade cartridge structure for receiving the V-shaped base portion therebetween and a latch means disposed in the recess retains the guard member in the assembled position.Type: GrantFiled: December 18, 1996Date of Patent: August 15, 2000Assignee: The Gillette CompanyInventors: Domenic V. Apprille, Jr., Gary R. Miller, deceased, Frank E. Brown, John B. Taylor