Heated shaving razors

Patent metadata

Field	Value
Publication number	US-9833917-B2
Application number	US-201615354283-A
Country	US
Kind code	B2
Filing date	Nov 17, 2016
Priority date	Jan 14, 2014
Publication date	Dec 5, 2017
Grant date	Dec 5, 2017

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.

First claim

What is claimed is:

1. A shaving razor system comprising:
a handle,
a shaving razor cartridge mounted to the handle, the shaving razor cartridge having 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, wherein the housing defines at least one opening extending into the housing and the perimeter wall has at least one leg extending into the at least one opening of the housing for securing the heat delivering element to the housing.

2. The shaving razor system of claim 1 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.

3. The shaving razor system of claim 1 wherein the insulating member is fixed to the heat delivering element with an adhesive.

4. The shaving razor system of claim 1 wherein the perimeter wall is continuous.

5. The shaving razor system of claim 1 wherein the at least one opening comprises a plurality of openings extending into the housing.

6. The shaving razor system of claim 5 wherein the at least one leg comprises a plurality of legs extending into the corresponding openings of the housing for securing the heat delivering element to the housing.

7. The shaving razor system of claim 6 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.

8. The shaving razor system of claim 1 wherein the second surface of the insulating member comprises a conductive heating track extending around a perimeter of the insulating member.

9. The shaving razor system of claim 8 further comprising an electrical circuit track on the second surface of the insulating member.

10. The shaving razor system of claim 9 wherein the electrical circuit track is spaced apart from the conductive heating track.

11. The shaving razor system of claim 9 wherein the electrical circuit track extends within a perimeter of the conductive heating track.

12. The shaving razor system of claim 9 further comprising a pair of thermal sensors on opposing sides of the electrical circuit track.

13. The shaving razor system of claim 12 wherein the thermal sensors are spaced apart from the conductive heating track.

14. The shaving razor system of claim 9 further comprising a protective coating covering.

15. The shaving razor system of claim 1 further comprising a flexible circuit and an electrical circuit track that is positioned on the second surface of the insulating member, wherein the flexible circuit is configured to carry a signal from at least one thermal sensor on the electrical track to a micro-controller positioned within the handle.

16. The shaving razor system of claim 15 wherein the at least one thermal sensor comprises a pair of thermal sensors.

17. The shaving razor system of claim 1 wherein the heat delivering element comprises steel.

18. The shaving razor system of claim 1 wherein a plurality of legs extend from the perimeter wall.

Assignees

• Gillette Co Llc

Inventors

• Hodgson Matthew James
• Broemse Norbert
• Heubach Klaus
• Schmitt Timo
• Schirmer Maurice
• Koenig Felix
• Behrendt Juergen

Classifications

• B26B21/48 Primary

  Heating means · CPC title

• B26B21/4056

  Sensors or controlling means · CPC title

• B26B21/227

  with blades being resiliently mounted in the changeable unit · CPC title

• B26B21/165

  with the blade moulded into, or attached to, a changeable unit · CPC title

• B26B21/40 Primary

  Details or accessories · CPC title