Class 30/41.7 - With blade usage indicator

Subclass of Class 30 - Cutlery
Definition: Razor wherein the addition structure comprises designation
No. of patents: 32
Last issue date: 02/28/2012

Number	Title	Issue Date
8122606	Cartridge life indicator A powered wet razor has a handle and a cartridge selectively detachable from the handle. The cartridge has at least one blade with a sharp cutting edge and is characterized by an expected shaving utility. An electrical arrangement that detects and tracks utility of ...	02/28/2012
7703209	Powered wet-shaving razor A razor includes a load and a voltage conversion system coupled to a voltage source and the load for transforming a variable voltage provided by the voltage source into a constant operating voltage for driving a load. ...	04/27/2010
7367126	Powered wet-shaving razor A razor includes a load and a voltage conversion system coupled to a voltage source and the load for transforming a variable voltage provided by the voltage source into a constant operating voltage for driving a load. ...	05/06/2008
7284461	Colored razor blades Colored razor blades are provided. Methods for manufacturing such blades are also provided, including methods involving subjecting a blade material to a hardening process; and, during the hardening process, oxidizing the blade material to form an oxide layer on the ...	10/23/2007
7197825	Razors and shaving cartridges with guard 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 betwe...	04/03/2007
7124511	Razor blade A razor blade is provided, which achieves improved safety in use and reduced cutting resistance to an object to be cut such as beard and hair, as compared with conventional razor blades. This razor blade can be obtained by using, as a silicon thin sheet, a single cr...	10/24/2006
7100283	Shaving system A shaving system includes a razor body having a blade releaseably secured at a first distal end thereof. A processor having a timing mechanism is positioned within the razor body. A pressure sensor is positioned externally on the razor body for selectively determini...	09/05/2006
7069658	Shaving system A shaving unit that comprises at least one blade and a skin engaging member that has a surface for engaging the user's skin adjacent the blade edge is described herein. The shaving unit may be of a disposable cartridge type adapted for coupling to and uncoupling fro...	07/04/2006
6944952	Shaving system A shaving unit that comprises at least one blade and a skin engaging member that has a surface for engaging the user's skin adjacent the blade edge. The shaving unit may be of a disposable cartridge type adapted for coupling to and uncoupling from a razor handle or ...	09/20/2005
6938344	Auxiliary part for an electric shaver An auxiliary part (7) for an electric shaver, for mounting and removing accessories such as a skin-stretcher (9), a lubricator (14), etc. on and from the outer cutting member (4) of the shaver. To provide a cheap and simple part for mount...	09/06/2005
6892460	Pliers-type tool and method for cutting through optical fibre cables The invention relates to a pliers-type tool and to a method for cutting through optical fibre cables (OF). According to the invention, the OF cable is received between the jaws of the pliers precisely, in a specific position, and is securely and precisely held and s...	05/17/2005
6708408	Razor system with worn blade indicator The present invention is directed to a shaving system having an indicator for indicating when the blades are becoming dull and in need of replacement. As razor blades dull, the user must exert greater force during shaving to achieve a satisfactory shave. Upon exerti...	03/23/2004
6594904	Shaving system A shaving unit that comprises at least one blade and a skin engaging member that has a surface for engaging the user's skin adjacent the blade edge is described herein. The shaving unit may be of a disposable cartridge type adapted for coupling to and unc...	07/22/2003
6460251	Razor system with worn blade indicator The present invention is directed to a wet shaving system having an electronic indicator for indicating when the blades are becoming dull and in need of replacement. As razor blades dull, the user must exert greater force during shaving to achieve a satis...	10/08/2002
6295733	Changeable color shaving aid The present invention features a disposable razor cartridge unit or disposable razor system having a shaving aid in the form of a comfort strip mounted on a razor head, wherein the shaving aid provides a sensory change over a period of time so that the us...	10/02/2001
6176166	Electric hair cutting machine with an automatic oil lubricating device The electric haircutting machine includes an electrical drive motor, cutting blades driven by the drive motor, a device (22) for oiling the cutting blades and a device (20) for detecting an oil deficiency of the oil lubricating the cutting blades. The dev...	01/23/2001
6009623	Razor with in situ sensor The present invention discloses a wet shave shaving system which contains an in situ sensor within the razor cartridge or razor handle. The sensor preferably comprises either a piezoelectric or a piezoresistive material which produces an electrical signal...	01/04/2000
5970831	Apparatus and method for detecting a deficiency of oil lubricating an electrically driven cutting blade of a haircutting machine The method for detecting an oil deficiency of oil lubricating a driven cutting blade of a haircutting machine includes measuring either drive motor current consumption, cutting blade vibration noise, haircutting machine sound level, cutting blade temperat...	10/26/1999
5956850	Disposable razor with means for recording usage A disposable razor with means for recording usage including a blade cartridge portion and a handle portion, the handle portion including a sidewall with an inner and outer surface. A plurality of push tabs are located on the sidewall of the handle, the pu...	09/28/1999
5920988	Electric shaver An electric shaver including a display that indicates when it is time to clean the shaving debris accumulated on a shaving debris receiving part that is covered by an outer cutter frame of the shaver. A counting device of the shaver counts the use time (o...	07/13/1999
5915791	Shaving system with improved guard structure A shaving system that includes a housing, one or more blades mounted on the housing, a cap behind the blades on the housing, and a guard structure in front of the blades on the housing, the guard structure including flexible skin-engaging protrusions that...	06/29/1999
5603161	Wear indicating shaving strip and blade assembly for a shaver A visual wear indicator which may incorporate a shaving aid, such that the visual wear indicator corresponds to released shaving agents, wear or oxidation of a cutting edge. The visual wear indicator may include a shaving aid composite which exhibits a fi...	02/18/1997
5600888	Electric razor An electric razor having a cutter foil and a cutter head, which interacts with the cutter foil and is driven by a motor which is electronically pulsed. An indicating device is provided which is connected to an operating time counter and/or to a device for...	02/11/1997
5421286	Disposable shaver with counter and method of counting and quantitatively comparing the useful life of disposable shavers A disposable shaver having a shaving head and handle equipped with blister bubbles positioned along the handle of the shaver. The blister bubbles are depressible from convex to concave and are provided to count the number of times the shaver is used. The ...	06/06/1995
5388331	Wear indicator for a disposable razor A wear indicator is located on the head or frame of a disposable razor or razor cartridge, in close proximity to the shaving edge of the blade. The wear indicator comprises a mass of material that gradually wears away as the disposable razor or cartridge ...	02/14/1995
5347715	Blade shave counter A blade shave counter is disclosed which counts the number of shaves for which an interchangeable shaving blade has been used, and displays the count on an LCD display mounted preferably on the shaving handle of a shaving instrument. Optionally, an audibl...	09/20/1994
5240107	Razor holder with shave counter A razor holder having an automatic shave counter responsive to each use of a razor. The razor holder includes a delay circuit to permit short term use of a razor without advancing the counter....	08/31/1993
5119557	Shave counter Disclosed herein is a safety razor having a blade, a handle mounted to the blade, and counting means attached to the handle for keeping track of the number of uses of a particular blade. The counter can be adapted for use on a disposable razor or on a raz...	06/09/1992
5111580	Electric shaving apparatus An electric shaving apparatus is provided which comprises a housing, a switch for activating switching cycles in which the apparatus is switched on and off, a holder for at least one external shaving member with hair-entry apertures, and an internal shavi...	05/12/1992
5062209	Use indicator for a disposable razor A disposable razor comprising a blade holder, a blade in the blade holder, a handle connected to the blade holder and a blade cover. In order to indicate the number of times the blade has been used, tabs are integrally formed on the handle, blade holder o...	11/05/1991
4268958	Apparatus and method for counting the number of shaves for which a razor blade is used A shaving implement is provided with a plurality of frangible tabs that can be broken off, one at a time, incident to each use of a razor blade for shaving. The user is able to keep track of the extent to which each blade is used, and to discard the blade...	05/26/1981
4208984	Razor usage indicator Apparatus for monitoring razor usage. The apparatus comprises an indicator means supported within a hollow handle portion of the razor and slidable to selected positions along the length thereof for alignment with numbered indicia on the handle to permit ...	06/24/1980

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Class 30/41.7 - With blade usage indicator