Razor cartridge
US7210229B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Feb 26, 2003 |
| Grant date | May 1, 2007 |
| Priority date | — |
| Expiry date | Sep 17, 2023 |
Classification
- Technology area (CPC B)Performing Operations; Transporting
- CPC primaryB26B21/222
- WIPO fieldMachine tools
- WIPO sectorMechanical engineering
Abstract
In a razor cartridge, a frame has an opening defined in part by a leading surface and a trailing surface. Positioned within the opening are a plurality of cutting edges, each cutting edge defined by a blade. In a shaving operation, a hirsute surface contacts in turn the leading surface, cutting edges, and the trailing surface. A contact plane is defined between the leading surface and the trailing surface that provides a reference for determining whether a cutting edge has a neutral, positive, or negative exposure. All of the cutting edges within the razor cartridge have an exposure relative to the contact plane that is one of all positive or all negative.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.