Patent US2155666A successfully refreshed from Google Patents.
Patent US3220108A successfully refreshed from Google Patents.
US3220108A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Rotary blade razor
Assignee: Individual
•
Filing: 1962-12-17
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Granted: 1965-11-30
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Expires: 1982-12-17
Abstract
No abstract record available.
Inventors
- 👤 Richard W Maccarthy
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 15:45
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/14
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
301 words
A ROTARY BLADE RAZOR COMPRISING, A HOUSING, A ROTARY SPINDLE JOURNALED IN SAID HOUSING, A DISK BLADE HAVING A SHARPENED PERIPHERAL SLICING EDGE MOUNTED COAXIALLY ON THE SPINDLE FOR ROTATION THEREWITH, A SLEEVE MOUNTED COAXIALLY OF THE BLADE ON THE SUPPORT, A PLURALITY OF ENDWISE EXTENDING TEETH ON THE SLEEVE, THE END SURFACES OF THE TEETH DEFINING A COMMON SURFACE CORRESPONDING TO THE AXIALLY INWARD SURFACE OF THE PERIPHERAL PORTION OF THE BLADE AND EXTENDING RADIALLY TO ITS SLICING EDGE, EACH OF THE TEETH BEING INCLINED AT AN ACUTE ANGLE TO THE RADIUS FROM THE SPINDLE AXIS THROUGH THE TOOTH IN A DIRECTION OPPOSITE TO THAT OF BLADE ROTATION TO DRAW WHISKERS ENTERING THE SPACES BETWEEN THE TEETH INTO SLICING RELATION WITH THE CUTTING EDGE OF THE BLADE, MEANS LIGHTLY BIASING THE BLADE AND SLEEVE AXIALLY TOWARD EACH OTHER TO URGE THE ENDS OF THE TEETH INTO LIGHT, FRICTIONAL, HONING ENGAGEMENT WITH THE CORRESPONDING PERIPHERAL PORTION OF THE BLADE, EACH TOOTH EXTENDING RADIALLY BEYOND THE PERIPHERY OF THE BLADE, MEANS FOR ROTATING THE SPINDLE AND THE BLADE THEREON RELATIVE TO THE TEETH, AND A SKIN ENGAGING ANNULAR MEMBER MOUNTED ON THE SUPPORT COAXIALLY OF, AND SPACED RADIALLY OUTWARDLY A SLIGHT DISTANCE FROM THE SHARPENED PERIPHERAL EDGE OF THE BLADE, SAID ANNULAR MEMBER BEING AXIALLY ADJUSTBLE TO A POSITION JUST AXIALLY INWARDLY OF THE BLADE EDGE, WHEREBY, WHEN THE RAZOR IS APPLIED TO THE FACE OF A USER WITH A PORTION OF THE AXIALLY OUTWARD FACE OF THE BLADE EXTENDING TO THE PERIPHERAL SLICING EDGE THEREOF AND THE ANNULAR SKIN ENGAGING MEMBER IN CONTACT WITH THE SKIN OF THE USER, AND IS DRAWN IN SUCH POSITION ACROSS A WHISKERED AREA OF A USER''S FACE WITH THE BLADE ROTATING, THE WHISKERS ON SUCH AREA WILL BE SEVERED BY SLICING BY THE BLADE EDGE.
Claim 2
Dependent Claim
301 words
A ROTARY BLADE RAZOR COMPRISING, A HOUSING, A ROTARY SPINDLE JOURNALED IN SAID HOUSING, A DISK BLADE HAVING A SHARPENED PERIPHERAL SLICING EDGE MOUNTED COAXIALLY ON THE SPINDLE FOR ROTATION THEREWITH, A SLEEVE MOUNTED COAXIALLY OF THE BLADE ON THE SUPPORT, A PLURALITY OF ENDWISE EXTENDING TEETH ON THE SLEEVE, THE END SURFACES OF THE TEETH DEFINING A COMMON SURFACE CORRESPONDING TO THE AXIALLY INWARD SURFACE OF THE PERIPHERAL PORTION OF THE BLADE AND EXTENDING RADIALLY TO ITS SLICING EDGE, EACH OF THE TEETH BEING INCLINED AT AN ACUTE ANGLE TO THE RADIUS FROM THE SPINDLE AXIS THROUGH THE TOOTH IN A DIRECTION OPPOSITE TO THAT OF BLADE ROTATION TO DRAW WHISKERS ENTERING THE SPACES BETWEEN THE TEETH INTO SLICING RELATION WITH THE CUTTING EDGE OF THE BLADE, MEANS LIGHTLY BIASING THE BLADE AND SLEEVE AXIALLY TOWARD EACH OTHER TO URGE THE ENDS OF THE TEETH INTO LIGHT, FRICTIONAL, HONING ENGAGEMENT WITH THE CORRESPONDING PERIPHERAL PORTION OF THE BLADE, EACH TOOTH EXTENDING RADIALLY BEYOND THE PERIPHERY OF THE BLADE, MEANS FOR ROTATING THE SPINDLE AND THE BLADE THEREON RELATIVE TO THE TEETH, AND A SKIN ENGAGING ANNULAR MEMBER MOUNTED ON THE SUPPORT COAXIALLY OF, AND SPACED RADIALLY OUTWARDLY A SLIGHT DISTANCE FROM THE SHARPENED PERIPHERAL EDGE OF THE BLADE, SAID ANNULAR MEMBER BEING AXIALLY ADJUSTBLE TO A POSITION JUST AXIALLY INWARDLY OF THE BLADE EDGE, WHEREBY, WHEN THE RAZOR IS APPLIED TO THE FACE OF A USER WITH A PORTION OF THE AXIALLY OUTWARD FACE OF THE BLADE EXTENDING TO THE PERIPHERAL SLICING EDGE THEREOF AND THE ANNULAR SKIN ENGAGING MEMBER IN CONTACT WITH THE SKIN OF THE USER, AND IS DRAWN IN SUCH POSITION ACROSS A WHISKERED AREA OF A USER''S FACE WITH THE BLADE ROTATING, THE WHISKERS ON SUCH AREA WILL BE SEVERED BY SLICING BY THE BLADE EDGE.
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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) | 1968-11-29 | 1969-05-31 | 1969-11-30 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1972-11-29 | 1973-05-31 | 1973-11-30 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1976-11-29 | 1977-05-31 | 1977-11-30 | $7700.00 | Window Closed / Lapsed |