Razor blade and manufacturing method thereof
US-2020368928-A1 · Nov 26, 2020 · US
Razor blades having a wide facet angle
US11766797B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-11766797-B2 |
| Application number | US-201916729854-A |
| Country | US |
| Kind code | B2 |
| Filing date | Dec 30, 2019 |
| Priority date | Jul 14, 2011 |
| Publication date | Sep 26, 2023 |
| Grant date | Sep 26, 2023 |
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- Title
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- Abstract
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Abstract
Official abstract text for this publication.
A razor blade including a substrate with a coating joined to the substrate defining a coated blade. The coated blade including a cutting edge being defined by a blade tip having a tip radius of from 50 to 350 angstroms. The coated blade having a pair of first facets extending from the blade tip and a pair of second facets extending from the respective first facets, a facet angle from 90° to 135°, a facet width from 0.38 micrometers to 0.65 micrometers a wedge angle from 5° to 30°, and a thickness of between 0.8 and 1.5 micrometers measured at a distance of 1 micrometer from the blade tip.
First claim
Opening claim text (preview).
What is claimed is: 1. A razor blade comprising: a substrate with a coating joined to said substrate defining a coated blade, said coated blade comprising a cutting edge being defined by a blade tip, said coated blade having a blade thickness measured within a region at a distance from 2 micrometers to a distance of 4 micrometers from the blade tip, wherein said coating comprises a plurality of materials, one of said materials having a material thickness greater than any other one of said plurality of materials in said region, and wherein said blade thickness is greatest at a distance of 2 micrometers from the blade tip, 3 micrometers from the blade tip, or 4 micrometers from the blade tip. 2. The razor blade of claim 1 wherein said one of said materials comprises a hard coating material. 3. The razor blade of claim 1 wherein said one of said materials comprises a carbon containing material. 4. The razor blade of claim 3 , wherein said carbon containing material comprises diamond-like carbon. 5. The razor blade of claim 1 wherein a shape of said substrate and a shape of said coating are different. 6. The razor blade of claim 1 , wherein said material thickness is greatest at said distance of 2 micrometers from the blade tip, 3 micrometers from the blade tip, or 4 micrometers from the blade tip. 7. The razor blade of claim 1 wherein said blade thickness is between 1.6 and 2.1 micrometers measured at a distance of 4 micrometers from the blade tip. 8. The razor blade of claim 1 , wherein said blade thickness is between 0.38 and 0.67 micrometers measured at a distance of 0.25 micrometers from the blade tip. 9. The razor blade of claim 1 , wherein said blade thickness is between 0.55 and 0.95 micrometers measured at a distance of 0.5 micrometers from the blade tip. 10. The razor blade of claim 1 , wherein said blade thickness is between 1.1 and 1.7 micrometers measured at a distance of 2 micrometers from the blade tip. 11. The razor blade of claim 1 , wherein said blade thickness is between 0.8 and 1.5 micrometers measured at a distance of 1 micrometer from the blade tip.
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Frequently asked questions
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- What does patent US11766797B2 cover?
- A razor blade including a substrate with a coating joined to the substrate defining a coated blade. The coated blade including a cutting edge being defined by a blade tip having a tip radius of from 50 to 350 angstroms. The coated blade having a pair of first facets extending from the blade tip and a pair of second facets extending from the respective first facets, a facet angle from 90° to 135…
- Who is the assignee on this patent?
- Gillette Co Llc
- What technology area does this patent fall under?
- Primary CPC classification B26B21/56. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 26 2023 00:00:00 GMT+0000 (Coordinated Universal Time) (B2). Legal status and post-grant events are not shown on this page.
- What related patents are in patentsdb?
- We list 12 related publications on this page (citations in our corpus or others sharing the same primary CPC).