# US 9,751,227 B2 · Method and system for regulating electric current flow from a power source to a blade cartridge in a wet shave razor

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- Number: US 9,751,227 B2
- Document ID: US9751227B2
- Status: Granted
- Kind: B2
- Application number: 15/232,400
- Filed: 2016-08-09
- Published: 2016-12-01
- Granted: 2017-09-05
- Earliest claimed: 2013-11-15
- Assignees: Heated Blades Holding Company, LLC
- Applicants: Heated Blades Holding Company, LLC
- Inventors: Louis D. Tomassetti; William Bohmer
- Web page: https://patentgrep.com/patent/US9751227B2

## CPC

- B26B 21/405: {Electric features; Charging; Computing devices}
- B26B 21/48: Heating means
- B26B: HAND-HELD CUTTING TOOLS NOT OTHERWISE PROVIDED FOR (for harvesting A01D; for horticulture, for forestry A01G; for butchering or meat treatment A22; for manufactering or repairing footwear A43D; nail clippers or cutters A45D29/02; kitchen equipment A47J; {vegetable slicers, julienne cutters and similar devices and holders therefor, B26D3/28}; for surgical purposes A61B; for metal B23D; cutting by abrasive fluid jets B24C5/02; plier-like tools with cutting edges B25B7/22; pincers B25C11/02; handles for hand implements, in general B25G; guillotine-type cutters B26D; {perforating by non-mechanical means, e.g. by fluid jet, B26F1/26}; for erasing B43L19/00; for textile materials D06H)

## 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

### Claim 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.

### Claim 2 (depends on 1)

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.

### Claim 3 (depends on 1)

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.

### Claim 4 (depends on 1)

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.

### Claim 5 (depends on 1)

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.

### Claim 6 (depends on 5)

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.

### Claim 7 (depends on 1)

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.

### Claim 8 (depends on 7)

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.