Knockdown And/or Folding Patents (Class 30/47)
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Patent number: 4272886Abstract: A shaver unit comprises at least one blade unit, a case member and a cover member. The case member has a blade accommodating space defined therein for accommodating the blade unit while the shaver unit is not in use for shaving and a blade fitting recess for fittingly and detachably receiving the blade unit while the shaver unit is used for shaving. The cover member is detachably attached to the case member to cover the blade unit accommodated in the accommodating space. The case member further has a portion serving as a handle gripped by the user's hand during shaving.Type: GrantFiled: March 27, 1979Date of Patent: June 16, 1981Assignee: Kai Cutlery Center Co., Ltd.Inventor: Tamoru Asano
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Patent number: 4270268Abstract: A razor blade assembly including a body member, a guard member mounted on the body member for movement thereon, a blade member mounted on the body member for movement thereon, the guard member and the blade member being independently moveable in response to forces encountered during a shaving operation, spring finger biasing members integral with the body member and exercising a bias against the guard member and the blade member, a cap portion fixed to the body member, and connector structure integral with the body member for connection of the blade assembly to a razor handle.Type: GrantFiled: December 7, 1979Date of Patent: June 2, 1981Assignee: The Gillette CompanyInventor: Chester F. Jacobson
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Patent number: 4266340Abstract: An improved cam follower subassembly for use in razor handles which mount pivotable razor blade cartridges. The improved cam follower subassembly includes a cam follower member, a spring and a pusher structured to form an interlocking subassembly to facilitate handling and installation into the razor handle housing during assembly. The cam follower member and the pusher each include a stop surface, the stop surfaces being positioned and oriented such that one is moved into limiting engagement with the other under the biasing action of the spring, which spring may be a compression spring disposed about the cam follower member in a captured manner.Type: GrantFiled: June 11, 1979Date of Patent: May 12, 1981Assignee: Warner-Lambert CompanyInventor: Peter Bowman
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Patent number: 4265015Abstract: A razor in which a razor blade and a blade support, on which the razor blade is mounted, move together back and forth with respect to the base of the razor so as to adjust the contacting angle with respect to the operator's skin. The base is provided on the top of the handle of the razor, and the razor blade and the blade support are covered by a top plate mounted on the base. Provided in front of the blade support is a guard member which projects forwardly beyond the cutting edge of the razor blade and extends parallel with the cutting edge. The blade support and the razor blade are moved back and forth by a rotatable operating member. When the blade support is retracted backwards, the whisker particles clinging to the blade are scraped off and dropped from between the base and the guard member.Type: GrantFiled: June 27, 1979Date of Patent: May 5, 1981Assignee: Kai Cutlery Center Company LimitedInventor: Tamoru Asano
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Patent number: 4253236Abstract: A razor blade assembly is provided with blade means mounted in a housing adapted to be connected to arms of a razor handle. The housing is provided with journal bearings for receiving journals on the arms of the razor handle. The housing is further provided with cam means at either end thereof. The journal bearing means form a pivot axis for pivotal movement of the razor blade assembly thereabout and the housing cam means is in engagement with biasing means on each arm of the handle when the blade assembly is mounted on the razor handle.Type: GrantFiled: June 19, 1979Date of Patent: March 3, 1981Assignee: The Gillette CompanyInventor: Chester F. Jacobson
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Patent number: 4253235Abstract: A shaving system including a razor handle and a replaceable blade assembly, the handle having first and second arms with first and second journals thereon, the arms being movable away from each other in such manner as to cause the journals to move away from each other along a common axis, a spring for biasing the arms toward each other, and a cam disposed on each of the arms, and a blade assembly including a housing having first and second journal bearings for receiving the first and second journals for pivotal mounting of the blade assembly on the handle, and cam surfaces for complemental engagement with the handle cams, the cam surfaces and handle cams cooperating to urge the blade assembly to a neutral position.Type: GrantFiled: June 19, 1979Date of Patent: March 3, 1981Assignee: The Gillette CompanyInventor: Chester F. Jacobson
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Patent number: 4247982Abstract: A shaving assembly is provided with skin-flow control means positioned in advance of the blade edge to control the effective exposure and blade-to-skin angle of the blade edge so as to greatly minimize or eliminate nicking. The skin-flow control means serves to minimize or eliminate the skin bulges which may otherwise be created in the unsupported space between a razor guard element and the blade edge. The skin-flow control means is provided by extending the skin-supporting surface of the guard element into such close proximity with the blade edge that the formation of a skin bulge therebetween is substantially prevented. A plurality of small holes may be provided in the guard element near the blade edge for allowing water flow therethrough to rinse shaving debris from the region of the blade.Type: GrantFiled: April 2, 1979Date of Patent: February 3, 1981Assignee: Warner-Lambert CompanyInventors: Anthony R. Booth, Cyril A. Cartwright
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Patent number: 4245388Abstract: The specific disclosure provides a safety razor comprising a cap member having a planar skin abutting upper surface defining a first plane for guiding the shaver over skin surfaces while shaving. A blade has a cutting edge at one end thereof in a second plane and extends from beneath the cap member. The first and second planes intersect at an angle of between about 15.degree. to about 25.degree.. A blade seat member is located beneath the blade and has a blade seat surface in contact with the blade and a plurality of spaced elements extending outwardly from beneath the cutting edge.Type: GrantFiled: December 19, 1977Date of Patent: January 20, 1981Inventors: Jan Dawidowicz, John D. Watts
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Patent number: 4245389Abstract: A razor including a grip portion and a head portion, the head portion including a base portion extending transversely of the grip portion and a cap portion overlying and spaced from the base portion to form a cavity therebetween adapted to receive a shaving unit, a spring member fixed to the grip portion, the spring member having a cam portion adapted to extend into the cavity, the spring member cam portion being adapted to engage an underside of the shaving unit when the shaving unit is disposed in the cavity, and a button fixed to the spring member and operative, upon having pressure applied thereto by an operator, to remove the spring member cam portion from the cavity and from engagement with the shaving unit, to free the shaving unit for removal from the cavity.Type: GrantFiled: July 18, 1979Date of Patent: January 20, 1981Assignee: The Gillette CompanyInventor: Robert A. Trotta
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Patent number: 4227302Abstract: A razor has a handle which holds a pair of double-edged blades enclosed by a cartridge member, by means of a fexible yoke having cartridge engaging hooks on each of its yoke arms. Dimple bearing means located on each side of the cartridge keep the yoke hooks in engagement with the cartridge. A central rod holding the yoke bears against an upturned end of a razor handle and acts to spread the yoke arms in loading and unloading the cartridge onto the yoke hooks. The rod holds the yoke and cartridge assembly in either a rigid posture or with allowance for a free float of the cartridge on the pivot bearings of the hooks in the dimples by means of a tooth on the rod in ratchet-like engagement with various slots formed in the handle adjacent the path of travel of the push rod to and from contact with the upturned end of the razor body.Type: GrantFiled: January 5, 1979Date of Patent: October 14, 1980Inventor: William L. Torrance
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Patent number: 4213240Abstract: A replaceable blade cartridge shaving system having an elongate handle with a coupling head formed at its terminal end. The coupling head is arrayed transversely of the handle axis and has two elongate substantially parallel coupling flanges formed thereon. The flanges extend transversely of the head and perpendicular thereto. Located between the flanges and extending a predetermined distance from the terminal end of the handle above a plane containing the flanges is a protuberance member. The cartridge has complementary grooves formed along its base for slidable engagement with the handle flanges and a recess is formed between the grooves having sufficient clearance as to allow the protuberance member to fit therein. Attempted use of the handle with other than a cartridge having such recess produces interference between the handle and the cartridge, thereby preventing slidable engagement therebetween.Type: GrantFiled: October 20, 1978Date of Patent: July 22, 1980Assignee: Warner-Lambert CompanyInventors: Frank A. Ferraro, Ernest F. Kiraly
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Patent number: 4200976Abstract: A shaving unit comprises an open framework to which at least one razor blade is secured by its ends, the razor blade having a cutting edge spaced at a predetermined distance from one surface of the framework which provides a guard surface for the cutting edge. The framework also has supporting surfaces within the boundaries of the framework to which intermediate portions of the razor blade are attached leaving substantial lengths of the razor blade clear of the framework to permit the unimpeded passage of cut hairs and shaving soap past the cutting edge and thence through the open framework.Type: GrantFiled: November 14, 1977Date of Patent: May 6, 1980Assignee: Wilkinson Sword LimitedInventor: Trevor F. Gooding
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Patent number: 4198746Abstract: A razor handle comprising a grip portion having arms at one end thereof for pivotally mounting thereon a shaving unit of the type in which a blade and guard are permanently fixed together, the shaving unit being free to pivot upon the handle during a shaving operation, the handle having spring structure thereon for biasing the pivotally movable shaving unit toward a central position, and structure permitting release of the shaving unit and engagement with a new shaving unit.Type: GrantFiled: September 18, 1978Date of Patent: April 22, 1980Assignee: The Gillette CompanyInventor: Robert A. Trotta
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Patent number: 4184246Abstract: A shaving unit having blade means exposed forwardly of an overlying cap member and rearwardly of a guard member, wherein the blade means and guard member are movable in unison and relative to the cap means, the guard member having fixed thereto a leaf spring to provide a resilient restoring force in response to forces transmitted to the unit during a shaving operation.Type: GrantFiled: July 24, 1978Date of Patent: January 22, 1980Assignee: The Gillette CompanyInventor: Robert A. Trotta
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Patent number: 4182031Abstract: The razor is of the type which has on its head a generally T-shaped fitting on which a conventional razor blade unit can be releasably mounted by urging the fitting into a correspondingly shaped channel or recess formed in the back of the blade unit. The blade unit can be removed from the head and stored in a generally rectangularly-shaped aperture formed through the razor handle intermediate its ends. An elongate rib is formed on one side wall of the aperture, and a cam lug is formed on the other side wall so that when the blade unit is forced into the opening the cam lug urges the channel of the blade unit releasably over the rib, thereby positively to hold the blade unit in the handle until forced therefrom by finger pressure or the like.Type: GrantFiled: February 10, 1978Date of Patent: January 8, 1980Inventor: John Cecil, Jr.
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Patent number: 4168571Abstract: A shaving unit comprising a frame, a blade member supported by the frame, first and second skin engaging elements supported by the frame and disposed respectively, in use of the unit, forwardly and rearwardly of the blade member, the first and second skin engaging elements being mounted in the frame in a manner permitting their resilient displacement relative to the frame and the blade member.Type: GrantFiled: January 27, 1978Date of Patent: September 25, 1979Assignee: The Gillette CompanyInventor: John F. Francis
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Patent number: 4163316Abstract: A safety razor intended to be discarded after use, comprising a cutting head and a handle. The cutting head includes two oppositely disposed longitudinal surfaces with cutting edges disposed thereon. In order that both cutting edges may be used, the cutting head is rotatably disposed in an extension piece adjoining the handle.Type: GrantFiled: January 17, 1978Date of Patent: August 7, 1979Assignee: Morris AGInventors: Peter Hagmann, Ernst Muller
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Patent number: 4146958Abstract: A safety razor contains a blade cartridge in which two blades are rigidly secured. The cartridge has a seat member with an integral blade edge guard disposed transversely along its forward margin. A first razor blade is disposed on a planar surface of the seat member and has its cutting edge located rearwardly of the guard. A second razor blade having a cutting edge located parallel to and rearwardly of the first blade edge is in contact with a mating surface of a cap member. The cap member is secured to the seat member thereby clamping the blades in desired position. The blades are maintained at a predetermined distance apart by spacing means and the guard member has a plurality of projecting teeth transversely arrayed across the guard member forming a comb guard.Type: GrantFiled: October 15, 1976Date of Patent: April 3, 1979Assignee: Warner-Lambert CompanyInventors: Evan N. Chen, Edward A. Beddall, Bryan J. Goddard
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Patent number: 4128937Abstract: A safety razor having a handle assembly and a blade mounted thereon is disclosed. The handle assembly includes a gripping portion formed at one end thereof, a surface extending transversely of the center line of the handle assembly to define the other end of the assembly, and another surface for mounting the blade to the handle assembly so that the blade's cutting edge is at an acute angle with respect to the transverse surface and so that no part of the blade extends beyond the other end of the handle assembly.Type: GrantFiled: August 6, 1976Date of Patent: December 12, 1978Inventor: Charles S. Adorney
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Patent number: 4094063Abstract: A razor assembly including a handle and a shaving unit of the type in which a blade and guard are permanently fixed together, the handle including means at one end thereof for pivotally mounting the shaving unit on the handle such that the shaving unit is free to pivot upon the handle during a shaving operation, the handle being a one-piece plastic molding and having means thereon for biasing the pivotally movable shaving unit toward a central position.Type: GrantFiled: December 15, 1976Date of Patent: June 13, 1978Assignee: The Gillette CompanyInventor: Robert Anthony Trotta
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Patent number: 4084316Abstract: A shaving unit comprises a narrow single edged blade strip and a frame having a support portion having a flat surface to which the blade is permanently secured over its full length.Type: GrantFiled: December 8, 1976Date of Patent: April 18, 1978Assignee: The Gillette CompanyInventor: John Frederick Francis
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Patent number: 4083104Abstract: A razor handle for a razor blade assembly adapted to be movably mounted on the handle and having cam means thereon for receiving a biasing force, the razor handle having movable arms with journal means providing an axis about which the razor blade assembly may be pivoted, and cam follower means adapted to engage the cam means on the razor blade assembly for exerting a bias force thereon.Type: GrantFiled: May 12, 1975Date of Patent: April 11, 1978Assignee: The Gillette CompanyInventors: Warren I. Nissen, Roger L. Perry
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Patent number: 4083103Abstract: Razor having a head for holding a blade, a tubular handle having an upper end near the head and a lower end remote from the head, a first shaft within the handle, a first gear fixed to the upper end of the first shaft, a second shaft fixed to the head, a second gear fixed to the second shaft and meshing with the first gear to effect rotation of the head when the first shaft is rotated, an operating member fixed to the lower end of the first shaft, a disc fixed to the first shaft slightly below the lower end of the handle and a screw ring threaded on to the lower end of the handle to allow locking the head in adjusted position by thrusting the disc against lower end of the handle.Type: GrantFiled: February 22, 1977Date of Patent: April 11, 1978Inventor: Ramon D. Estandian
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Patent number: 4069580Abstract: A razor blade assembly which is flexible in at least one bending mode. A seat member of substantially planar shape has an integrally formed guard located transversely along its forward margin. The guard and seat members are formed of a flexible material. A flexible blade having a sharpened edge along a transverse margin is disposed on a surface of the seat member having its edge parallel to and rearwardly located of the guard bar. A cap member of flexible material has a planar surface in contact with the blade and a front margin located rearwardly of the cutting edge. The seat, blade and cap are yieldingly bonded together and freely flexible about an axis parallel to the plane of the blade and perpendicular to the cutting edge.Type: GrantFiled: August 18, 1976Date of Patent: January 24, 1978Assignee: Warner-Lambert CompanyInventors: Cyril A. Cartwright, James S. Emmett, Arthur E. Michael, Anthony J. Peleckis, Ernest M. Symes
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Patent number: 4063354Abstract: A shaving unit having blade means exposed forwardly of an overlying cap member and rearwardly of a guard member, wherein the blade means and guard member are movable in unison and relative to the cap means against a resilient restoring force in response to forces transmitted to the unit during a shaving operation, to alter the shaving geometry of the unit.Type: GrantFiled: May 28, 1976Date of Patent: December 20, 1977Assignee: The Gillette CompanyInventors: Brian Oldroyd, Harry Pentney, John Charles Terry
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Patent number: 4057896Abstract: A razor handle for a razor blade assembly adapted to be movably mounted on the handle and having cam means thereon for receiving a biasing force, the razor handle having arms with journal means providing an axis about which the razor blade assembly may be pivoted, and cam follower means adapted to engage the cam means on the razor blade assembly for exerting a bias force thereon.Type: GrantFiled: October 14, 1976Date of Patent: November 15, 1977Assignee: The Gillette CompanyInventor: Robert A. Trotta
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Patent number: 4037321Abstract: A safety razor in which a double edge blade is held clamped in shaving position between a bridge member and cap member carried on a mounting plate attached to a handle. To change the blade, the bridge member and cap are slid longitudinally of the mounting plate to a second or blade change position and the cap is lifted free to provide access to the blade for changing same.Type: GrantFiled: November 11, 1976Date of Patent: July 26, 1977Assignee: Philip Morris IncorporatedInventors: Clemens A. Iten, Malcolm B. Sykes
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Patent number: 4026016Abstract: A razor blade assembly is provided with blade means disposed between a cap member and a platform member and is adapted to be connected to a razor handle. The platform member has journal bearing means for receiving razor handle mounting means and cam means for receiving a biasing force exerted by said razor handle. The journal bearing means form a pivot axis for pivotal movement of the razor blade assembly thereabout and the platform member cam means is in engagement with a cam follower on the handle when the blade assembly is mounted on the razor handle.Type: GrantFiled: May 12, 1975Date of Patent: May 31, 1977Assignee: The Gillette CompanyInventor: Warren I. Nissen
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Patent number: 4016648Abstract: A safety razor comprises a blade seat member having a transversely elongated guard surface, and a first plurality of upwardly extending support posts. A first razor blade is situated on the blade seat member with a cutting edge spaced upwardly and rearwardly of the guard surface. A plurality of perforations are formed in the first blade and the first plurality of support posts extend upwardly through the perforations. A second razor blade is positioned above the first blade in abutting engagement with the top surfaces of the first plurality of support posts. The second blade includes a cutting edge spaced upwardly and rearwardly of the cutting edge of the first blade, and a plurality of perforations formed therethrough. A cap member is positioned above the second blade, and includes a second plurality of support posts extending downwardly through the perforations in the second blade and in abutting engagement with the top surface of the first blade.Type: GrantFiled: August 13, 1975Date of Patent: April 12, 1977Assignee: Warner-Lambert CompanyInventors: Evan Nai-keung Chen, Edward A. Beddall
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Patent number: 3975820Abstract: The specification discloses a razor assembly comprising a handle having a yoke-shaped extension therein into which a double-edged and double-sided blade cartridge interfits for rotatable positioning between the yoke. An ejector and stop means is located at the base of the yoke to hold the blade cartridge in one of two shaving positions with an ejector actuation means operable from the handle of the razor.Type: GrantFiled: May 12, 1975Date of Patent: August 24, 1976Inventor: William Robert Lincoln Torance
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Patent number: 3967375Abstract: The invention contemplates a razor-handle construction of such elemental simplicity as to be fabricated as a single integral molded-plastic part, with end-lug formations contoured to removably receive and assemble to the central region of the back-edge of certain razor-blade subassemblies, including presently commercial subassemblies. In the disclosed embodiments, the handle is a sheath in which the razor-blade subassembly is self-packaged and readily accessible for assembly to the lug formations, being then correctly oriented for use.Type: GrantFiled: March 3, 1975Date of Patent: July 6, 1976Inventor: Edward J. Hoffschmidt
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Patent number: 3964159Abstract: A specific embodiment provides an adjustable safety razor comprising a guard structure hinged to a blade seat, and a manually operable slide. A recess and a rail slidably interconnect the slide member and the blade seat for guiding the slide member in a direction parallel to an axis defined by the hinging structure. Another recess and rail slidably interconnect the slide member and the guard structure in an angular direction with respect to the axis of the hinging structure for moving the guard structure about the axis of the hinging structure upon manual operation of the slide member.Type: GrantFiled: November 22, 1974Date of Patent: June 22, 1976Assignee: Warner-Lambert CompanyInventor: Frank A. Ferraro
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Patent number: 3955277Abstract: A razor blade unit having a cap portion, guard portion, and a blade member clamped therebetween, the unit further having coupling structure for detachably connecting the unit to a cooperating handle, and adjusting mechanism integral with the unit and operable independently of any cooperating handle for changing the relative positioning of the blade member and guard portion to vary the shaving geometry of the blade unit.Type: GrantFiled: September 17, 1974Date of Patent: May 11, 1976Assignee: The Gillette CompanyInventor: Edward E. Pomfret
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Patent number: 3950848Abstract: A safety razor comprising a razor blade support member connected to a handle through a linkage assembly is disclosed. The linkage assembly maintains the angle of the razor blade support member in relation to the handle at substantially a constant angle to prevent the razor blade from moving in a circular path. The razor blade support member is spring biased and retracts responsive to pressure being applied to it by the force during shaving, and maintains the pressure applied by the safety razor upon the face constant. The spring biasing means associated with the linkage assembly may be adjusted to vary the applied pressure.Type: GrantFiled: March 18, 1974Date of Patent: April 20, 1976Inventor: Michael Goldstein
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Patent number: 3950849Abstract: A razor blade assembly includes a razor blade shaving unit comprising a substantially rigid member to which a razor blade is secured in a permanent manner with the rigid member having a forward edge providing a guard surface spaced from a cutting edge of the razor blade. The razor blade assembly further includes a connector member attached to the shaving unit in such a manner that the shaving unit is movable relative to the connector member. The connector member is provided with a plurality of surfaces forming channel means longitudinally thereof for receiving supporting surfaces of a holder.Type: GrantFiled: July 23, 1974Date of Patent: April 20, 1976Assignee: The Gillette CompanyInventor: Roger L. Perry
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Patent number: 3938247Abstract: A shaving implement includes a grip portion, a transversely extending support portion at one end of the grip portion, a connection between the grip portion and the support portion which permits movement of the support portion relative to the grip portion during the course of a shaving stroke in a dynamic mode of shaving action, and structure for restricting the movement of the support portion relative to the grip portion, the movement restricting structure including a control portion movable between a first position which affords significant movement restriction and a second position which affords less movement restriction.Type: GrantFiled: March 5, 1974Date of Patent: February 17, 1976Assignee: The Gillette CompanyInventors: Nelson P. Carbonell, Roger L. Perry
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Patent number: 3935639Abstract: A safety razor comprises an elongated handle that has a pair of arcuate, laterally spaced guide rails; a support member that has a pair of elongated guide means for sliding cooperation with the respective guide rails; a spring that acts between the handle and the support member to bias the support member towards a medial position of pivotal adjustment relative to the handle; and a shaving unit for detachable interengagement with the support member to position its cutting edge parallel to the pivotal axis.Type: GrantFiled: February 25, 1974Date of Patent: February 3, 1976Assignee: The Gillette CompanyInventors: John C. Terry, Steven V. Barnett, John Lloyd
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Patent number: 3934338Abstract: A multiple blade razor of the double edge type in which the blades are permanently fixed in a razor head cartridge there being two pairs of small blades with the blades at each edge arranged in a superposed but spaced relation the cartridge being adapted for releasably mounting on a handle to enable replacement of a used cartridge, the razor head including a bridge or base member and a generally U-shaped cap member with intervening pairs of blades and a spacer member between the upper and lower pairs of blades, the several members embodying particular elements cooperating to simplify assembling operations and insure accurate relations in the final assembly of the head.Type: GrantFiled: December 11, 1972Date of Patent: January 27, 1976Assignee: Philip Morris IncorporatedInventor: Paul A. Braginetz
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Patent number: 3934339Abstract: The specific disclosure provides a razor blade cartridge having a pair of single edge blades which are tandemly mounted and vertically separated by a spacer. The blades and spacer are permanently bonded between a cap member and a blade seal member. Each of the blades has its cutting edge in abutting engagement with a respective pair of spaced stops. Means are provided for abutting engagement with the rear edges of the blades to prevent rearward movement thereof.Type: GrantFiled: September 21, 1973Date of Patent: January 27, 1976Assignee: Warner-Lambert CompanyInventors: Jan Dawidowicz, Frank A. Ferraro