Shaving razor cartridge
US-2018345512-A1 · Dec 6, 2018 · US
Cutting members for shaving razors
US9446443B2 · US · B2
| Field | Value |
|---|---|
| Publication number | US-9446443-B2 |
| Application number | US-201414273828-A |
| Country | US |
| Kind code | B2 |
| Filing date | May 9, 2014 |
| Priority date | Apr 10, 2006 |
| Publication date | Sep 20, 2016 |
| Grant date | Sep 20, 2016 |
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- Title
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- Abstract
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- Assignees and inventors
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- Key dates
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- First independent claim
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- CPC / IPC classifications
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- Citations and related patents
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Abstract
Official abstract text for this publication.
A cutting member for a shaving razor includes an elongated blade portion that tapers to a cutting edge, an elongated base portion that is integral with the blade portion, and a bent portion, intermediate the blade portion and the base portion. In some implementations, at least part of the cutting member has a thickness of at least about 0.005 inch (0.127 millimeter).
First claim
Opening claim text (preview).
What is claimed is: 1. A method comprising: hardening a strip of blade steel; forming a cutting edge on the hardened strip; after forming the cutting edge, bending the strip along its length by coining the strip, bending the strip reduces the thickness of the blade steel in the bent portion by at least about five percent relative to an original thickness of the blade steel; and separating the bent strip into individual blades, each blade having a bent portion. 2. The method of claim 1 , wherein bending the strip comprises using a forming die that is configured so as not to touch the cutting edge. 3. The method of claim 1 , wherein the blade steel comprises about 0.35 to about 0.43 percent carbon, about 0.90 to about 1.35 percent molybdenum, about 0.40 to about 0.90 percent manganese, about 13 to about 14 percent chromium, no more than about 0.030 percent phosphorus, about 0.20 to about 0.55 percent silicon, and no more than about 0.025 percent sulfur.
Assignees
Inventors
Classifications
characterised by the material · CPC title
Bent razor blades; Razor blades with bent carriers · CPC title
Mounting devices; Manufacture of razors or cartridges (B26B21/528 takes precedence) · CPC title
Hardening (C21D1/02 takes precedence); Quenching with or without subsequent tempering (quenching devices C21D1/62) · CPC title
containing Cr (C21D6/004 takes precedence) · CPC title
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Frequently asked questions
Answers are generated from the same data shown on this page.
- What does patent US9446443B2 cover?
- A cutting member for a shaving razor includes an elongated blade portion that tapers to a cutting edge, an elongated base portion that is integral with the blade portion, and a bent portion, intermediate the blade portion and the base portion. In some implementations, at least part of the cutting member has a thickness of at least about 0.005 inch (0.127 millimeter).
- Who is the assignee on this patent?
- Gillette Co
- What technology area does this patent fall under?
- Primary CPC classification B26B21/4031. Mapped technology areas include Operations & Transport.
- When was this patent published?
- Publication date Tue Sep 20 2016 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 8 related publications on this page (citations in our corpus or others sharing the same primary CPC).