US 8,408,096 B2Granted

Shaving/cutting device with directly deposited razor structures

OwnerHerbert A. Howlandinventor

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Abstract

A shaving/cutting device with directly deposited (formed) razor structures without the use of intermediate adhesives. The device is in the form of a substantially flat substrate with miniature razors that have been directly deposited and formed onto the surface of the substrate. The substrate is of a rigid or flexible nature. The substrate is substantially thin and is therefore flexible and its shape is rectangular, circular or oval in nature. The razors are substantially deposited in plurality as an array formation onto the surface of the substrate. In most cases the razor array formation is in the form of parallel, curved and concentric nature. Flat mesa structures that are substantially the same height as the razor structures are incorporated in the razor array formations. The methods of manufacturing one or more directly deposited razor structures and mesa structures is disclosed.

Claims6

Dependent claims

A method for directly depositing razor structures on a substrate surface comprising the steps of:

a. depositing a first photo-resist layer on said substrate surface;
b. exposing and developing said first photo-resist layer to form a first photo-resist region generally perpendicular to said substrate surface;
c. providing a mask disposed on the first photo-resist region;
d. positioning said mask such that said mask is generally parallel to and spaced from said first photo-resist region wherein said mask forms an overhang over said first photo-resist region;
e. depositing a razor material directly onto the substrate surface at an angle to said substrate surface, said angle being such that said overhang provides blocking for said razor material from an upper portion of said first photo-resist region, whereby said razor material is deposited against said first photo-resist region and disposed directly on the substrate surface;
and
f. removing said mask and said first photo-resist region, thereby leaving said razor material that was deposited against said first photo-resist region in step e, disposed directly on the substrate surface.

4 more elements

Dependencies are inferred from the claim text.

Facts

Application: 11/786,422Filed 10 Apr 2007 · us provisional application
Priority: 10 Apr 2006
Published: US 2007/0234852 A111 Oct 2007
Granted: 2 Apr 2013
Term ends: Not estimatedThe source records don’t support an estimate.

Classification11 codes

B26B 21/16
Safety razors with one or more blades arranged transversely to the handle: involving blades with only one cutting edge
A45D 27/24
Containers or carriers for storing shaving appliances: for storing thin flat razor blades, e.g. after use
B26B 21/56
Razor-blades: characterised by the shape
C23C 14/0036
Reactive sputtering or evaporation: reactive sputtering