Method and system for regulating electric current flow from a power source to a blade cartridge in a wet shave razor

Abstract

A method for regulating current flow in a wet shave razor includes one or more conductive materials, such as metals, in electric circuit connection, wherein each conductive material has unique resistance properties and is used to regulate the amount of current (i.e. heat) flowing to at least one electrically powered component on the blade cartridge, and particularly one or more electrically powered devices/elements on the blade cartridge such as, but not limited to, one or more blades, one or more heating elements, a vibration device, illuminating device (e.g. LED or bulb), gauges, or indicators. The length and thickness of the conductive materials used in the electric circuit further affects the total circuit resistance and, accordingly, the amount of current flowing to the blade cartridge for heating the blades. In other embodiments, the dissimilar material conductors may be used to regulate current flow to alternative electrically conductive components.

Claims

1. A method of regulating current flow in an electrically operated device that receives electric current flow from an electric power source for operating at least one component on the device, said method comprising the steps of: providing a plurality of different material conductors for use to form an electrical circuit connected between the electric power source and the at least one electrically powered component; determining a total resistance amount in the electric circuit needed to achieve a desired electric current flow for operating the at least one electrically powered component; selectively modifying the specific electric resistance of at least one of said plurality of different material conductors in order to achieve the total resistance in the electric circuit; and interconnecting the plurality of different material conductors between the electric power source and the at least one electrically powered component to create the electric circuit.

2. The method of regulating current flow in an electrically operated device as recited in claim 1 further comprising the step of: substituting at least one of said plurality of different material conductors with a new material conductor to alter the total resistance in the electric circuit.

3. The method of regulating current flow in an electrically operated device as recited in claim 1 wherein each of said plurality of different material conductors has a unique length.

4. The method of regulating current flow in an electrically operated device as recited in claim 1 wherein each of said plurality of different material conductors has a unique width.

5. The method of regulating current flow in an electrically operated device as recited in claim 1 wherein said at least one component is at least one electrically conductive blade.

6. The method of regulating current flow in an electrically operated device as recited in claim 5 wherein said at least one component is at least one heating element in contact with said at least one electrically conductive blade.

7. The method of regulating current flow in an electrically operated device as recited in claim 1 wherein said at least one electrically powered component is at least one heating element in contact with a blade cartridge of a shaving razor.

8. The method of regulating current flow in an electrically operated device as recited in claim 7 wherein said at least one electrically powered component is at least one light in contact with said blade cartridge.

Description

BRIEF DESCRIPTION OF THE DRAWINGS

(1) For a fuller understanding of the nature of the present invention, reference should be made to the following detailed description taken in conjunction with the accompanying drawings in which:

(2) FIG. 1 is a perspective view of one embodiment of the heated blade razor illustrating the internal components of the heated blade razor;

(3) FIG. 2 is a perspective view of an alternative embodiment of the heated razor illustrating the internal components thereof;

(4) FIG. 3A is a schematic illustration showing the closed electric circuit of the heated blade razor in its resting state;

(5) FIG. 3B is a schematic illustration showing the closed electric circuit of the heated blade razor with an additional loop added to the electric circuit; and

(6) FIG. 4 is a schematic illustration showing an alternative embodiment of the closed electric circuit of the heated blade razor and including three different material conductor segments being selectively operable by a user.

(7) Like reference numerals refer to like parts throughout the several views of the drawings.

DETAILED DESCRIPTION OF INVENTION

(8) Referring to the several views of the drawings, the system for regulating electric current flow from a power source to a blade cartridge on a wet shave razor is shown and is generally indicated as 10.

(9) Referring to FIG. 1, a first embodiment of the heated blade razor system 10 includes a main body 12 having a ground contact component 14, a cap contact component 15, a power lead component 16, a ground lead component 18, a power lead contact component 20, a ground lead contact component 22, a first and second contact component 24A and 24B, and a first and second blade lead contact component 26A and 26B. Each component 14-26B is in electric circuit connection with one or more blades 28 held together in a blade cartridge and is made from a particular material conductor selected for generation of optimum blade 28 temperature, wherein one or more of the material conductors are dissimilar from the other material conductors. The dissimilar material conductors may be selected from a group of materials including, but not limited to: stainless steel, brass, and nickel-chromium alloy.

(10) Still referring to FIG. 1, the heated blade razor 10 includes a battery power source 30 in connection with a switch 32 (4.5 Amp) for powering the heated razor 10. In operation, the switch 32 is moved to the ON position by the user to close the electric circuit, thereby sending electric current flow through the blades 28 to heat the blades 28. The temperature of the blades is dependent on the particular material conductors selected for each of the ground contact component 14, the cap contact component 15, the power lead component 16, the ground lead component 18, the power lead contact component 20, the ground lead contact component 22, the first and second contact components 24A and 24B, and the first and second blade lead contact components 26A and 26B. Other variables, such as wire length and wire width of the electric circuit components 14-26B, may be altered in order to produce a particular blade temperature. The wires forming the electric circuit components 14-26B may be coiled in order to maximize wire length within a compact area for increasing the total resistance of the circuit. For example, the wires can be arranged in a cylindrical coil or a spiraling coil in order to increase the length of the wire within the compact area provided. An insulating material may be used in between the wire coils or, alternatively, the wires may include an insulating jacket for preventing the wire from contacting itself.

(11) The following table provides an example of the material conductors selected for components 14-26B of heated razor 10:

(12) TABLE-US-00001 Material Component Conductor Ground contact component (14) Stainless steel Cap contact component (15) Brass Power lead component (16) Brass Ground lead component (18) Brass Power lead contact component (20) Brass Ground lead contact component (22) Brass Contact components (24A, 24B) Brass Blade lead contact components (26A, 26B) Nickel-chromium

(13) Referring to FIG. 2, an alternative embodiment of the heated blade razor 10 is shown, wherein the main body 12 includes a button 34 for engaging an additional loop to the electric circuit in order to increase the total resistance of the circuit, thereby decreasing the amount of electric current flow to the blade cartridge and decreasing the temperature of the one or more blades 28 while the button 34 is engaged. In operation, button 34 may be pressed by the user during the shaving process in order to decrease the temperature of the blades 28. When the button 34 is released, the additional loop is disengaged and the temperature of the blades 28 returns to the original (i.e. hotter) temperature. Additional loops may be added to the circuit which, when engaged, further decrease the temperature of the blades.

(14) Referring to FIGS. 3A and 3B, the process described above, wherein button 34 is pressed by the user during the shaving process in order to engage an additional loop to the electric circuit so that the distance the electric current flow travels is increased and the blades are cooled, is shown. FIG. 3A illustrates the electric circuit in its resting state, wherein button 34 is not pressed. FIG. 3B illustrates the electric circuit with the additional loop created when button 34 is engaged for decreasing the temperature of blades 28. Additional loops may be added to the circuit which, when engaged, further control the temperature of the blades.

(15) Referring to FIG. 4, the use of dissimilar material conductors in connection with a battery power source 30 for regulating electric current flow can be utilized in a system including two or more separate circuits, each having a unique set of material conductors and each circuit having a different resistance, wherein the user can alternate between each of the two or more circuits to send a different electric current flow (e.g. high, medium, low) to the blade cartridge. As shown in FIG. 4, one embodiment of the heated blade razor 10 includes separate material conductors 36A, 36B and 36C selectively operable using a slide switch (not pictured) to put one of the separate material conductors 36A, 36B or 36C in connection with opposite ends of power lead component 16. Each of the separate material conductors 36A, 36B and 36C has a different resistance for producing a unique electric current flow in the circuit, such as high (least resistance), medium (medium resistance) and low (most resistance), as indicated by the H, M, and L on FIG. 4.

(16) Use of dissimilar material conductors in connection with a battery power source 30 for regulating electric current flow could be utilized for applications other than directly heating the razor blades 28. Examples of alternative applications for use of dissimilar material conductors for regulating current flow to an electrically conductive component include, but are not limited to, regulation of lighting on the blade cartridge, gauges, indicator and/or regulation of heating elements on the blade or blade cartridge for added shaving comfort.

(17) Use of dissimilar material conductors in connection with a battery power source 30 can be used in conjunction with one or more light emitting diodes (LEDs) or bulbs as part of the electric circuit with means for selectively connecting and disconnecting (e.g. a switch) each LED or bulb to the circuit, wherein each LED or bulb adds further resistance to thereby allow for further regulation of current flow. The LEDs or bulbs can serve as indicators (e.g. temperature indicators) in addition to providing the function of varying the total resistance in the circuit.

(18) While the present invention has been shown and described in accordance with several preferred and practical embodiments, it is recognized that departures from the instant disclosure are contemplated within the spirit and scope of the present invention which are not to be limited except as defined in the following claims as interpreted under the Doctrine of Equivalents.