EP 1175973 A2 20020130 - Multiple micro-blade hair removal devices and methods for manufacturing
Title (en)
Multiple micro-blade hair removal devices and methods for manufacturing
Title (de)
Mit mehreren Mikroklingen versehenen Haarentfernungsgeräte und Verfahren zur dessen Herstellung
Title (fr)
Dispositifs d'enlèvement de cheveux avec plusieurs microlames et procédés pour leur fabrication
Publication
Application
Priority
US 62619300 A 20000728
Abstract (en)
Hair removal devices comprising a plurality of micro-blades and methods for their fabrication, include, for example, microelectronic manufacturing techniques. Preferred "blades" have at least one edge with a radius of curvature not greater than about 1000 angstroms, preferably not greater than about 500 angstroms. Alternative embodiments of the present invention comprise a relatively high number of abrasion elements for hair removal. In addition to blades and/or abrasion elements, shaving devices of this invention can comprise skin flow control elements which control the flow of hair across the shaving device and thereby control the angle at which the blade edges or abrasion elements contact the hair. Another aspect of the present invention comprises blades having cutting depth which are much smaller than previously known shaving devices. For example, the cutting depth of one or more blades is not greater than about 75 microns, or is even less. Shaving devices are formed on rigid or flexible substrates using one or more of the following techniques: photolithography, wet chemical etching, dry etching, or material deposition techniques. <IMAGE>
IPC 1-7
IPC 8 full level
B26B 19/12 (2006.01); A45D 26/00 (2006.01); B26B 21/06 (2006.01); B26B 21/22 (2006.01); B26B 21/54 (2006.01)
CPC (source: EP)
A45D 26/0004 (2013.01); B26B 21/222 (2013.01); B26B 21/54 (2013.01)
Citation (applicant)
- US 5205040 A 19930427 - WERNER ERIC J [US]
- US 5088195 A 19920218 - LAZARSHIK DANIEL B [US], et al
Designated contracting state (EPC)
AT BE CH CY DE DK ES FI FR GB GR IE IT LI LU MC NL PT SE TR
DOCDB simple family (publication)
EP 1175973 A2 20020130; EP 1175973 A3 20030502; AU 5596901 A 20020131; CA 2353705 A1 20020128; JP 2002078990 A 20020319; JP 2005034664 A 20050210; JP 3860729 B2 20061220
DOCDB simple family (application)
EP 01306454 A 20010727; AU 5596901 A 20010725; CA 2353705 A 20010724; JP 2001228265 A 20010727; JP 2004295603 A 20041008