Modified Teeth Patents (Class 30/82)
  • Patent number: 8448339
    Abstract: A shaving cartridge with a housing, a cap, and a guard. The guard has an upper surface. The cap has a top surface, a front edge, and an arcuate surface connecting the top surface and the front edge. A first blade between the cap and the guard has a cutting edge nearest the cap. A second blade between the cap and the guard has a cutting edge nearest the guard. The first and second blades define a blade plane tangent to the cutting edges. The blade plane is positioned below both (i) the surface of the guard and (ii) an intersection point of the front edge and the top surface of the cap.
    Type: Grant
    Filed: August 3, 2010
    Date of Patent: May 28, 2013
    Assignee: The Gillette Company
    Inventors: Vincent Paul Walker, Jr., Stephen Charles Witkus
  • Patent number: 7197825
    Abstract: 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: Grant
    Filed: March 11, 2004
    Date of Patent: April 3, 2007
    Assignee: The Gillette Company
    Inventors: Vincent P. Walker, Andrew Keene
  • Publication number: 20040078979
    Abstract: 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: Application
    Filed: October 15, 2003
    Publication date: April 29, 2004
    Applicant: The Gillette Company, a Delaware corporation
    Inventor: Bernard Gilder
  • Patent number: 6505403
    Abstract: A manually operated, finger-manipulatable non-electric hair trimming device for shaving nostril hair, ear hair or the like, includes a head structure sized to fit within a small body cavity, such as a person's nostril or ear cavity, which includes a flexible razor blade strip. The head structure has a base portion and a curved guard portion, which preferably has first and second ends which are attached to the base portion. A finger grip portion is connected to the base portion to allow precise manual manipulation of the hair trimming device. The head structure further has a thin, elongated narrow razor blade strip with a razor sharp first edge portion, which may be a serrated edge with razor-sharp notches such as V-slots or may be a conventional straight edge. Alternatively, two razor-sharp edges, one serrated and one straight, may be provided.
    Type: Grant
    Filed: October 28, 1997
    Date of Patent: January 14, 2003
    Inventor: Edward A. Andrews
  • Patent number: 6367533
    Abstract: A cut-off blade assembly including a thin metal blade having an attachment portion by which the cut-off blade assembly can be attached to a dispenser, and a plurality of projecting similarly shaped triangular primary teeth. The triangular primary teeth each have two sides terminating in points and have bases adjacent the attachment portion that are aligned in a first direction along the blade so that their points project generally at right angles to that first direction. Edge surfaces on the sides and at the points of the primary teeth intersect a major surface of the primary teeth at an included angle of no greater than about 90 degrees to define a cutting edge at that intersection. The cut-off blade assembly further includes projections along one major surface of the primary teeth.
    Type: Grant
    Filed: July 21, 1999
    Date of Patent: April 9, 2002
    Assignee: 3M Innovative Properties Company
    Inventor: James F. Pitzen
  • Patent number: 6227958
    Abstract: A sharpening holder and a knife are uniquely configured for use with each other, the holder and the knife having permanent elements that mate when the holder is installed on the knife so that the holder is installed on the knife in exactly the same position on the knife every time that the knife is sharpened.
    Type: Grant
    Filed: April 6, 1999
    Date of Patent: May 8, 2001
    Inventor: William Neuberg
  • Patent number: 6182365
    Abstract: The present invention relates to a skin engaging member for use in a razor blade cartridge assembly or shaving systems of the wet shave type comprising an elongated flexible sheath region and at least one elongated, rigid core region. The core region is surrounded by the sheath such that the outer surface of the core does not intersect the outer surface of the sheath. Generally, the core or cores extend axially throughout the sheath and provide sufficient mechanical strength and rigidity to provide adequate mechanical strength and rigidity to provide adequate mechanical strength to the entire skin engaging member, as initially produced, during the shaving operation and after a significant amount of shaves.
    Type: Grant
    Filed: August 5, 1997
    Date of Patent: February 6, 2001
    Assignee: The Gillette Company
    Inventors: Mingchih M. Tseng, Philip J. Sweeney, Alfred Porcaro, Domenic Apprille
  • Patent number: 6167625
    Abstract: 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: Grant
    Filed: May 18, 1999
    Date of Patent: January 2, 2001
    Assignee: Warner-Lambert Company
    Inventors: Brian F. King, David C. Coffin, Michael P. O'Malley, Andrew J. Pennella
  • Patent number: 5983499
    Abstract: A manually operated, finger-manipulatable non-electric hair trimming device for shaving nostril hair, ear hair or the like, includes a head structure sized to fit within a small body cavity, such as a person's nostril or ear cavity, which includes a flexible razor blade strip. The head structure has a base portion and a curved guard portion, which preferably has first and second ends which are attached to the base portion. A finger grip portion is connected to the base portion to allow precise manual manipulation of the hair trimming device. The head structure further has a thin, elongated narrow razor blade strip with a razor sharp first edge portion, which may be a serrated edge with razor-sharp notches such as V-slots or may be a conventional straight edge. Alternatively, two razor-sharp edges, one serrated and one straight, may be provided.
    Type: Grant
    Filed: October 28, 1996
    Date of Patent: November 16, 1999
    Inventor: Edward A. Andrews
  • Patent number: 5953819
    Abstract: 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: Grant
    Filed: September 25, 1997
    Date of Patent: September 21, 1999
    Assignee: The Gillette Company
    Inventors: Graham John Simms, Oliver David Oglesby
  • Patent number: 5802721
    Abstract: A shaving unit includes a skin engagement surface member for contact with the skin in advance of a blade edge and defined by a series of resiliently mounted elements (9) defining between them slots (10) through which hairs can pass while being subjected to a light pulling force to increase the length of hair projecting from the skin prior to cutting. The skin engagement surface member may be a guard of the shaving unit or it can be mounted between two blades.
    Type: Grant
    Filed: October 16, 1996
    Date of Patent: September 8, 1998
    Assignee: The Gillette Company
    Inventors: Kevin James Wain, Frank Edward Brown
  • Patent number: 5127121
    Abstract: An elongate handle mounts a generally "J" shaped head thereon in a forward end of the handle of the "J" shaped head, including a planar construction defining an inner edge and an outer edge, with the inner edge including a first lug cooperative with the second lug defining a receiving gap therebetween, with the receiving gap intersected by a piercing lug for puncturing of a gutter portion of an associated paint can to permit drainage of paint through a conventional paint can gutter. The organization includes a lifting lug mounted to an outer edge of the "J" shaped head for removal of the associated paint can lid. The handle of the organization further includes an internally threaded bore selectively mounting a hammer head portion or a blade support member to secure a blade therewithin for scraping during a painting procedure.
    Type: Grant
    Filed: August 15, 1991
    Date of Patent: July 7, 1992
    Inventor: Leland R. Bossie
  • Patent number: 4502217
    Abstract: Shaving instrument having a guard bar (6) arranged spacedly in front of the blade cutting edge and extending parallel to the latter. The guard bar (6), in its surface area coming into contact with the skin, is provided with small projections, for example, file-type or rasp-type teeth (12,13) which protrude from the surface of the guard bar and are preferably arranged in two or more rows extending parallel to the blade cutting edge (26), and which have sharp edges (16,17) which act in the same direction as the blade cutting edge (26).
    Type: Grant
    Filed: December 9, 1981
    Date of Patent: March 5, 1985
    Inventor: Friedrich Sch/a/ chter