The present invention relates to an electrochemical device for releasing ions, comprising an electrical circuit comprising a first electrode and a second electrode adapted for providing a galvanic cell when the electrodes are exposed to a fluid constituting an electrolyte, and a boost converter adapted for amplifying a potential generated between the first and the second electrode. The electrical circuit further comprises a third electrode connected with an output side of the boost converter, wherein the second and the third electrode constitutes an electrolytic cell powered by the galvanic cell when the electrodes are exposed to a fluid. The present invention further relates to devices, such as a toothbrush or a shaver, adapted for being used in connection with a fluid, comprising such electrochemical device for releasing ions.

A method for generating user feedback information from a shave event associated with a user. A shaving razor is provided to user. The shaving razor includes a handle, a hair cutting implement connected to the handle, at least one motion sensor in the handle, a hair cutting implement displacement sensor positioned in the handle, a communication device positioned in the handle and a power source positioned in the handle. The power source powers the at least one motion sensor, the hair cutting implement displacement sensor and the communication device. Shave event data associated with the user during a shave is collected from the at least one motion sensor and the hair cutting implement displacement sensor. The shave event data is processed to generate user feedback information.

A computer-implemented method of analyzing shaving may include receiving contextual data associated with one or more users from one or more data sources; training a machine learning model using the received contextual data; receiving user data from a user; determining a durability cluster of the user based on the received user data and the trained machine learning model; and performing a shaving improvement action based on the determined durability cluster.

A system for determining a level of debris accumulation in a region adjacent to at least one blade of a razor cartridge. The system includes a sensing unit to detect a measurement parameter which is one of an amount of light reflected from at least one area adjacent to the at least one blade, and an image of the at least one area adjacent to the at least one blade. A processing unit compares the detected measurement parameter to at least one reference threshold parameter and determines a level of debris accumulation in the at least one area adjacent to the at least one blade based on an amount of deviation of the detected measurement parameter from the at least one reference threshold parameter. Information regarding the determined level of debris accumulation is provided by at least one of a light indication, an aural indication, and a haptic indication.

A razor includes a blade cartridge with multiple blades removably and pivotally attaches to a handle. The blade cartridge and handle include microprocessors for wireless communication between the handle and blade cartridge, via near field communication or RFID. A charging base allows for charging a rechargeable power source in the handle and is further adapted to communicate with a smartphone, computer or other electronic device via wired and/or wireless communication. A mobile application on the smartphone is able to communicate with the charging base, while also providing for wired or wireless communication with remote servers/cloud infrastructure and/or the Internet.

A shaving system including a shaver having a handle, a razor cartridge, and one or more sensors, wherein the one or more sensors may be configured to detect a characteristic of at least one of the shaver or a body part of a user and to generate a sensor signal representative of the characteristic. A processor may be operably coupled to the one or more sensors and may have at least one algorithm stored thereon for analyzing the sensor signal to determine a status of the shaving session. An indicator may be operably coupled to the processor, and the indicator may be configured to provide feedback to the user regarding the status of the shaving session.

A masking foil, for a shaving cartridge, and a shaving cartridge comprising a housing having a top surface, a bottom surface, a front edge, a rear edge, and a pair of side edges extending between the front edge and the rear edge. The housing includes a main blade disposed between the front edge and the rear edge. The main blade includes a main cutting edge extending toward the top surface and is movable in the housing. The shaving cartridge further comprises a masking foil. The masking foil includes a front portion located forward of the main cutting edge, a back portion located rearward the main cutting edge, and at least one ribbon which extends between the front portion and the back portion and which partially covers the main cutting edge.

A cartridge for a razor comprises a plurality of blade supports, wherein at least one blade support further comprises a blade attached to an inner surface of the at least one blade support that faces away from a shaving surface, wherein the at least one blade support comprises a first optical feature disposed on a portion of an outer surface of the at least one blade support that faces towards the shaving surface, and wherein the first optical feature is a first thermochromic portion configured to change colour based on a temperature of the at least one blade support according to a first temperature response of the first thermochromic portion.

A system for determining a level of debris accumulation in a region adjacent to at least one blade of a razor cartridge. The system includes a sensing unit to detect a measurement parameter which is one of an amount of light reflected from at least one area adjacent to the at least one blade, and an image of the at least one area adjacent to the at least one blade. A processing unit compares the detected measurement parameter to at least one reference threshold parameter and determines a level of debris accumulation in the at least one area adjacent to the at least one blade based on an amount of deviation of the detected measurement parameter from the at least one reference threshold parameter. Information regarding the determined level of debris accumulation is provided by at least one of a light indication, an aural indication, and a haptic indication.

The lubricating strip for a razor cartridge includes a first layer including a first lubricating material having a first color; and a second layer disposed under the first layer and including a second lubricating material having a second color different from the first color. The first layer and the second layer are configured to form at least one boundary line, which is not parallel to a straight line along a width direction of the lubricating strip, on a cross-section of the lubricating strip cut in a direction perpendicular to a longitudinal direction of the lubricating strip; and define multiple shaving layers including a first shaving layer including the first layer, a second shaving layer including the first layer and the second layer, and a third shaving layer including the second layer, the multiple shaving layers being arranged along a straight line parallel to a height direction of the lubricating strip.