US4302876A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Razor blade with inclined edge
Assignee: Warner Lambert Co LLC
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Filing: 1980-03-14
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Granted: 1981-12-01
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Expires: 2000-03-14
Abstract
Abstract A tandem edge razor blade cartridge has two blades with edge portions bearing cutting edges that are in a spaced-apart, parallel relationship. One of the blades has a major portion, behind the edge portion, bent at a substantial angle to the edge portion, away from the other blade, so that the gap behind the edge portions is greater than that between the edge portions themselves. Other embodiments include one or both blades each having a major portion comprising two components, one at an angle to the edge portion away from the other blade, the second component bent, at the same angle, to the first, back toward the other blade. As a result the second component is parallel to the edge portion, but displaced further than it is from the other blade. Additionally, an embodiment is provided in which the razor blade support has resilient apparatus to allow independent motion of the blades.
Inventors
- 👤 James S. Emmett
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-30 19:41
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/14; B26B21/22; B26B21/222; B26B21/227; B26B21/54
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
167 words
A razor assembly comprising razor blade support means, a first razor blade supported by said blade support means, comprising: a first planar edge portion having a longitudinal cutting edge, and a first major planar portion continuous with said first planar edge portion; and a second blade supported by said blade support means comprising: a second planar edge portion having a longitudinal cutting edge, and a second major planar portion continuous with and being disposed at a substantial angle to said second planar edge portion; said first and second blades being arranged in said support means such that said first and second planar edge portions are substantially parallel and spaced apart and the gap between said first and second major portions of said blades is greater than the gap between said first and second edge portions, said blade support means includes means for resiliently supporting said first and second blades for independent movement in a direction within the plane of said first and second major planar portions, respectively.
Claim 2
Dependent Claim
167 words
A razor assembly comprising razor blade support means, a first razor blade supported by said blade support means, comprising: a first planar edge portion having a longitudinal cutting edge, and a first major planar portion continuous with said first planar edge portion; and a second blade supported by said blade support means comprising: a second planar edge portion having a longitudinal cutting edge, and a second major planar portion continuous with and being disposed at a substantial angle to said second planar edge portion; said first and second blades being arranged in said support means such that said first and second planar edge portions are substantially parallel and spaced apart and the gap between said first and second major portions of said blades is greater than the gap between said first and second edge portions, said blade support means includes means for resiliently supporting said first and second blades for independent movement in a direction within the plane of said first and second major planar portions, respectively.
Claim 3
Dependent Claim
112 words
A razor assembly comprising: razor blade support means affording limited blade motion, a pair of razor blades held movably by said support means, each blade defining a planar cutting portion including a cutting edge and a contiguous planar support portion, at least one blade being so shaped that its planar cutting portion is spaced a predetermined distance from and parallel to the corresponding portion of the other blade and said planar support portions of both said blades being spaced apart a distance greater than said predetermined distance, said blades being movable relative to one another through a limited stroke within said support means without disturbing the parallel relationship of said cutting portions.
Claim 4
Dependent Claim
112 words
A razor assembly comprising: razor blade support means affording limited blade motion, a pair of razor blades held movably by said support means, each blade defining a planar cutting portion including a cutting edge and a contiguous planar support portion, at least one blade being so shaped that its planar cutting portion is spaced a predetermined distance from and parallel to the corresponding portion of the other blade and said planar support portions of both said blades being spaced apart a distance greater than said predetermined distance, said blades being movable relative to one another through a limited stroke within said support means without disturbing the parallel relationship of said cutting portions.
Claim 5
Dependent Claim
107 words
A razor assembly comprising: resilient razor blade support means affording limited blade motion, a pair of razor blades held movably by said support means, each blade defining a planar cutting portion including a cutting edge and a contiguous planar support portion, said blades being so shaped that their planar cutting portions are spaced a predetermined distance from and parallel to one another and said planar support portions of both said blades being spaced apart a distance greater than said predetermined distance, said blades being movable relative to one another through a limited stroke within said resilient support means without disturbing the parallel relationship of said cutting portions.
Claim 6
Dependent Claim
107 words
A razor assembly comprising: resilient razor blade support means affording limited blade motion, a pair of razor blades held movably by said support means, each blade defining a planar cutting portion including a cutting edge and a contiguous planar support portion, said blades being so shaped that their planar cutting portions are spaced a predetermined distance from and parallel to one another and said planar support portions of both said blades being spaced apart a distance greater than said predetermined distance, said blades being movable relative to one another through a limited stroke within said resilient support means without disturbing the parallel relationship of said cutting portions.
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1984-11-30 | 1985-06-01 | 1985-12-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-30 | 1989-06-01 | 1989-12-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-30 | 1993-06-01 | 1993-12-01 | $7700.00 | Window Closed / Lapsed |