HEATED SHAVING RAZORS

• US 20170203453A1
• Filed: 03/28/2017
• Published: 07/20/2017
• Est. Priority Date: 01/14/2014
• Status: Active Grant

• Current Assignee: The Gillette Company LLC (The Procter & Gamble Company)
• Original Assignee: The Gillette Company LLC (The Procter & Gamble Company)
• Inventors: Hodgson, Matthew James, Broemse, Norbert, Heubach, Klaus, Schmitt, Timo, Schirmer, Maurice, Koenig, Felix, Behrendt, Juergen
• Granted Patent: US 10,421,205 B2
• Time in Patent Office: Days
• CPC Class Codes: B26B 21/165 with the blade moulded into, or attached to, a changeable unit
• CPC Class Codes: B26B 21/227 with blades being resiliently mounted in the changeable unit
• CPC Class Codes: B26B 21/4056 Sensors or controlling means
• CPC Class Codes: B26B 21/48 Heating means

Abstract

A shaving razor cartridge with a housing having a guard, a cap, and one or more blades located between the guard and the cap. The guard is positioned in front of the one or more blades and the cap is positioned behind the one or more blades. A heat delivering element is mounted to the housing for transferring heat during a shaving stroke. The heat delivering element includes a skin contacting surface and an opposing bottom surface defined by a perimeter wall. An insulating member is positioned within the perimeter wall. The insulating member has a first surface facing the bottom surface of the heat delivering element and a second surface.

Claims

1. A heating unit for a shaving razor comprising:

a heat delivering element having a skin contacting surface and a bottom surface opposing the skin contacting surface defined by a perimeter wall; and

an insulating member positioned within the perimeter wall, the insulating member having a first surface facing the bottom surface of the heat delivering element and a second surface.

2. The heating unit of claim 1 further wherein the heat delivering element comprises a plurality of legs extending from the perimeter wall in a direction transverse to and away from the bottom surface.

3. The heating unit of claim 1 further comprising a protective coating covering the second surface of the insulating member.

4. The heating unit of claim 1 wherein the heat delivering element comprises steel.

5. The heating unit of claim 1 wherein the perimeter wall is continuous.

6. The heating unit of claim 1 wherein the insulating member is fixed to the heat delivering element with an adhesive.

7. The heating unit of claim 1 wherein the second surface of the insulating member comprises a conductive heating track extending around a perimeter of the insulating member.

8. The heating unit claim 7 further comprising an electrical circuit track on the second surface of the insulating member.

9. The heating unit of claim 8 wherein the electrical circuit track is spaced apart from the conductive heating track.

10. The heating unit of claim 9 wherein the electrical circuit track extends within the perimeter of the conductive heating track.

11. The heating unit of claim 9 further comprising a pair of thermal sensors on opposing sides of the electrical circuit track.

12. The heating unit of claim 11 wherein the thermal sensors are spaced apart from the conductive heating track.

13. A shaving razor cartridge comprising:

a housing comprising a guard, a cap, and one or more blades located between the guard and the cap, said guard being positioned in front of said one or more blades, said cap being positioned behind said one or more blades,

a heat delivering element mounted to the housing for transferring heat during a shaving stroke, said heat delivering element comprising a skin contacting surface and an opposing bottom surface defined by a perimeter wall; and

an insulating member positioned within the perimeter wall, the insulating member having a first surface facing the bottom surface of the heat delivering element and a second surface.

14. The shaving razor cartridge of claim 13 wherein the housing defines at least one opening extending into the housing.

15. The shaving razor cartridge of claim 14 wherein the perimeter wall has at least one leg extending into the at least one opening of the housing securing the heat delivering element to the housing.

16. The shaving razor cartridge of claim 15 wherein the opening extends from a top surface to a bottom surface of the housing and the leg extends into the opening and is bent about at least a portion of the bottom surface of the housing.

17. The shaving razor cartridge of claim 13 wherein the perimeter wall is continuous.

18. The shaving razor cartridge of claim 17 wherein the housing defines a plurality of openings extending into the housing.

19. The shaving razor cartridge of claim 18 wherein the perimeter wall has a plurality of legs extending into the corresponding openings of the housing securing the heat delivering element to the housing.

20. The shaving razor cartridge of claim 19 wherein the openings extend from a top surface to a bottom surface of the housing and the legs are bent about at least a portion of the bottom surface of the housing.