US5276967A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Flexible razor unit employing corrugated spacer
Assignee: Edgewell Personal Care Brands LLC
•
Filing: 1993-04-29
•
Granted: 1994-01-11
•
Expires: 2013-04-29
Abstract
Abstract A flexible, twin-blade razor unit employing a corrugated spacer for providing improved cutting effectiveness. The corrugations increase the rigidity of the blades, which, in turn, decreases the amplitude of any vibration introduced into the blades.
Inventors
- 👤 Frank A. Ferraro
- 👤 Vincent C. Motta
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 15:18
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/40; B26B21/4012; B26B21/4068
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
104 words
A flexible, twin-blade wet shaving razor unit providing improved cutting effectiveness comprising: a cap blade and a seat blade, each of said blades having a cutting edge for shaving; a seat portion and a cap portion, said blades disposed and secured for shaving between said seat and cap portions; and a spacer disposed between said blades, said spacer including corrugations for increasing the rigidity of said cutting edge during shaving, wherein said corrugations are interconnected by a plurality of plates, said plates maintaining surface contact with said seat blade during flexing incurred while shaving and wherein said plates are attached to said seat blade.
Claim 2
Dependent Claim
104 words
A flexible, twin-blade wet shaving razor unit providing improved cutting effectiveness comprising: a cap blade and a seat blade, each of said blades having a cutting edge for shaving; a seat portion and a cap portion, said blades disposed and secured for shaving between said seat and cap portions; and a spacer disposed between said blades, said spacer including corrugations for increasing the rigidity of said cutting edge during shaving, wherein said corrugations are interconnected by a plurality of plates, said plates maintaining surface contact with said seat blade during flexing incurred while shaving and wherein said plates are attached to said seat blade.
Claim 3
Dependent Claim
33 words
The razor unit according to claim 1, wherein said corrugations serve to space said cap blade from said seat blade while maintaining surface contact with said cap blade during flexing incurred while shaving.
Claim 4
Dependent Claim
17 words
The razor unit according to claim 1, wherein each of said corrugations has a channel-shaped cross section.
Claim 5
Dependent Claim
19 words
The razor unit according to claim 1, wherein said plates extend substantially across the width of said seat blade.
Claim 6
Dependent Claim
23 words
The razor unit according to claim 4, wherein said plates are welded to said seat blade at a position proximate said cutting edge.
Claim 7
Dependent Claim
19 words
The razor unit according to claim 1, wherein said corrugations extend substantially across the width of said cap blade.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1997-01-10 | 1997-07-12 | 1998-01-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-01-10 | 2001-07-12 | 2002-01-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-01-10 | 2005-07-12 | 2006-01-11 | $7700.00 | Window Closed / Lapsed |