US5208982A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Device to shave concave areas
Assignee: Individual
•
Filing: 1992-10-06
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Granted: 1993-05-11
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Expires: 2012-10-06
Abstract
Abstract This invention provides a device to shave concave areas utilizing a blade bent into an arc where the blade sharpened edge is mounted on a cylindrical or conical surface in a convex shape. In one embodiment the lead in surface is a spherical segment with grooves to guide hairs and the blade edge is mounted projecting slightly over a slot located at the intersection between the cylindrical and the spherical surfaces. This method allows nick free shaving of concavities.
Inventors
- 👤 Gerald A. Ferruzza, Jr.
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 16:19
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/52; B26B21/522; B26B21/08; B26B21/14; B26B21/28
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
96 words
A razor comprising a head, a handle and a razor blade, the head including a body portion having an upper surface and a lower surface and a cover, the upper surface including a top portion and slot, the head being arcuate in configuration and having hinged means of movably engaging the cover, the cover positioned on the top portion of the upper surface and having a leading edge, a slot formed in the upper surface of the body portion and spaced from the leading edge of the cover, the razor blade positioned on the top portion.
Claim 2
Dependent Claim
96 words
A razor comprising a head, a handle and a razor blade, the head including a body portion having an upper surface and a lower surface and a cover, the upper surface including a top portion and slot, the head being arcuate in configuration and having hinged means of movably engaging the cover, the cover positioned on the top portion of the upper surface and having a leading edge, a slot formed in the upper surface of the body portion and spaced from the leading edge of the cover, the razor blade positioned on the top portion.
Claim 3
Dependent Claim
177 words
A razor comprising a head, a handle, a sheath and a strip blade, the head including a body portion having an upper surface and a lower surface, the upper surface having a trough like section formed therein, the trough like section including a series of spaced through apertures and having a leading edge, a slot being formed in the upper surface of the body portion, spaced from the leading edge of the trough like section and having a front edge, the sheath comprises a generally rectangular arced base portion having an under surface from which a series of spaced engagement studs extend, the strip blade includes a series of through holes and a cutting edge, the strip blade positioned in the section aligning the holes with the apertures and with the cutting edge projecting into the area defined by the slot, the sheath engaged to the head and the strip blade by inserting each of the engagement studs through a hole into engagement with its respective aperture thereby fixing the strip blade in relation to the head.
Claim 4
Dependent Claim
177 words
A razor comprising a head, a handle, a sheath and a strip blade, the head including a body portion having an upper surface and a lower surface, the upper surface having a trough like section formed therein, the trough like section including a series of spaced through apertures and having a leading edge, a slot being formed in the upper surface of the body portion, spaced from the leading edge of the trough like section and having a front edge, the sheath comprises a generally rectangular arced base portion having an under surface from which a series of spaced engagement studs extend, the strip blade includes a series of through holes and a cutting edge, the strip blade positioned in the section aligning the holes with the apertures and with the cutting edge projecting into the area defined by the slot, the sheath engaged to the head and the strip blade by inserting each of the engagement studs through a hole into engagement with its respective aperture thereby fixing the strip blade in relation to the head.
Claim 5
Dependent Claim
35 words
A razor as set forth in claim 2 wherein the head having a series of grooves formed therein extending from the front edge of the slot, the grooves in spaced parallel relation to each other.
References Cited (Backward Citations)
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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) | 1996-05-10 | 1996-11-09 | 1997-05-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2000-05-10 | 2000-11-09 | 2001-05-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2004-05-10 | 2004-11-09 | 2005-05-11 | $7700.00 | Window Closed / Lapsed |