Functional razor cartridge

Patent metadata

Field	Value
Publication number	US-9687988-B2
Application number	US-201314054959-A
Country	US
Kind code	B2
Filing date	Oct 16, 2013
Priority date	Jun 22, 2009
Publication date	Jun 27, 2017
Grant date	Jun 27, 2017

Abstract

A method of forming a functional razor cartridge for repeated shaving comprises rapid prototyping a housing of a razor cartridge. The housing has a front wall, a rear wall and opposing side walls disposed transverse to and between said front and rear walls. The method further comprises loading a metal insert with one or more elongate blade assemblies and disposing the metal insert in the housing such that the one or more blade assemblies extend between the opposing side walls of the housing.

First claim

What is claimed is:

1. A razor cartridge comprising:
a) a housing comprising a plurality of layers;
b) a metal insert located within the housing, the metal insert comprising a front wall, a rear wall, opposing side walls disposed transverse to and between said front and rear walls and a strut extending between the front and rear walls; and
c) one or more elongate blade assemblies disposed in said metal insert, said one or more blade assemblies being arranged to extend between said opposing side walls, wherein said razor cartridge is formed by rapid prototyping such that said razor cartridge can be used for repeated shaving.

2. A razor cartridge as claimed in claim 1 ,
wherein the opposing side walls and the strut are provided with slots for receiving therein said one or more elongate blade assemblies, and wherein the metal insert is formed by rapid prototyping.

3. A razor cartridge as claimed in claim 2 wherein said slots are formed using wire erosion.

4. A razor cartridge as claimed in claim 1 , further comprising:
d) a connecting member pivotally attached to an underside of the housing, wherein said connecting member comprises a receiving member for pivotally connecting the housing to a razor handle, wherein the connecting member is formed by rapid prototyping.

5. A razor cartridge as claimed in claim 4 , wherein said connecting member is formed using selective laser sintering.

6. A razor cartridge as claimed in claim 4 , wherein said connecting member is comprised of small nylon particles.

7. A razor cartridge as claimed in claim 1 wherein said plurality of layers of said housing comprise UV-curable resin.

8. A razor cartridge as claimed in claim 7 wherein a filler is suspended in the UV-curable resin of the housing.

9. A razor cartridge as claimed in claim 1 wherein said housing is formed using digital light processing.

10. A razor cartridge as claimed in claim 1 wherein said metal insert is formed using direct laser metal sintering.

11. A razor cartridge as claimed in claim 1 wherein said metal insert is formed of fused melted metal powder.

Assignees

• Gillette Co

Inventors

• Peterson Mark
• Piff Dominic Michael

Classifications

• B29C64/10

  Processes of additive manufacturing · CPC title

• B22F10/66

  by mechanical means · CPC title

• B22F10/18

  by mixing binder with metal in filament form, e.g. fused filament fabrication [FFF] · CPC title

• B22F10/12

  by photopolymerisation, e.g. stereolithography [SLA] or digital light processing [DLP] · CPC title

• B22F10/28

  Powder bed fusion, e.g. selective laser melting [SLM] or electron beam melting [EBM] · CPC title