Patent US3680211A successfully refreshed from Google Patents.
US3680211A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety razor with blade aligning means
Assignee: Individual
•
Filing: 1970-06-15
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Granted: 1972-08-01
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Expires: 1990-06-15
Abstract
Abstract A safety razor of the type in which a flexible blade is clampingly held between a table and a cap, the cap and table being respectively provided at corner points with complementary parts that include cam surfaces, the function of which is to attain a well-defined position of the blade, both longitudinally and transversely and to insure the precise position of its cutting edges to provide improved shaving results. Another feature of the invention resides in the provision of grooves in the cap and table and whereby shaving cream or soap will be dispersed or spread over the face rather than being entirely removed during the shaving operation, thereby providing a lubricant present during secondary strokes of the razor while shaving.
Inventors
- 👤 Karl M Keck
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-08 02:06
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/14; B26B21/18
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
117 words
A safety razor comprising, a blade-supporting table, a cap fitted thereover and acting to clamp a blade between its under surface and the top of the table, the table having relieved areas on its upper surface adjacent to its opposite ends, the table also having inclined cam surFaces at its corners, said cam surfaces defining a face of a depression at each corner, the cap having under portions at each of its corners entering said depressions, said under portions including inclined cam surfaces conforming to those on the table, said under portions on the cap including walls which contact against and portions on the blade to definitely longitudinally position the blade between the table and the cap.
Claim 2
Dependent Claim
117 words
A safety razor comprising, a blade-supporting table, a cap fitted thereover and acting to clamp a blade between its under surface and the top of the table, the table having relieved areas on its upper surface adjacent to its opposite ends, the table also having inclined cam surFaces at its corners, said cam surfaces defining a face of a depression at each corner, the cap having under portions at each of its corners entering said depressions, said under portions including inclined cam surfaces conforming to those on the table, said under portions on the cap including walls which contact against and portions on the blade to definitely longitudinally position the blade between the table and the cap.
Claim 3
Dependent Claim
86 words
A safety razor having a blade-supporting table and a cap fitting thereover to clamp a blade down upon the table, the table having depressions extending only partly through it at its corners, said depressions having inclined surfaces constituting cams and also having upper faces projecting forwardly of said inclined surfaces, the cap having parts at its corners complementary to the depressions, said parts having surfaces contacting against the upper faces of the depressions and also having inclined faces resting against the inclined faces of the depressions.
Claim 4
Dependent Claim
86 words
A safety razor having a blade-supporting table and a cap fitting thereover to clamp a blade down upon the table, the table having depressions extending only partly through it at its corners, said depressions having inclined surfaces constituting cams and also having upper faces projecting forwardly of said inclined surfaces, the cap having parts at its corners complementary to the depressions, said parts having surfaces contacting against the upper faces of the depressions and also having inclined faces resting against the inclined faces of the depressions.
Claim 5
Dependent Claim
69 words
A safety razor according to claim 2, wherein the cam surfaces are inclined and the parts on the cap have inclined surfaces that are complementary to those of the depressions, the upper surfaces of the depressions being disposed at a flat angle to the inclined surfaces of said depressions, and the parts on the cap being lugs having lower surfaces which contact with the upper surfaces of the depressions.
References Cited (Backward Citations)
US1889401A
Cited
US3564710A
Cited
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |