US3816916A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable razor blade cartridge
Assignee: Warner Lambert Co LLC
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Filing: 1972-10-03
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Granted: 1974-06-18
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Expires: 1992-10-03
Abstract
Abstract The specific disclosure provides a safety razor system comprising a cartridge having at least one single cutting edge blade and a guard member having a transverse blade guard surface, and a handle including means for releasably engaging the cartridge. The system also includes means for movably supporting the guard member on the cartridge, and means connected to the handle for engaging the guard member to adjust the guard surface with respect to the cutting edge of the blade.
Inventors
- 👤 L Kuhnl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 10:54
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/14; B26B21/24
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
123 words
In a safety razor system comprising a cartridge including at least one single cutting edge blade bonded thereto and a guard member having a transverse blade guard surface, and a holder adapted to releasably engage said cartridge, the improvement comprising: means for movably supporting said guard member on said cartridge, said guard member including a cam follower, and a cam mounted on said holder and including a cam surface for abutting engagement with said cam follower when said cartridge is engaged by said holder, said cam surface being disengaged from said cam follower when said cartridge is disengaged from said holder, said cam being manually operable for adjusting said guard surface with respect to the cutting edge of said at least one blade.
Claim 2
Dependent Claim
123 words
In a safety razor system comprising a cartridge including at least one single cutting edge blade bonded thereto and a guard member having a transverse blade guard surface, and a holder adapted to releasably engage said cartridge, the improvement comprising: means for movably supporting said guard member on said cartridge, said guard member including a cam follower, and a cam mounted on said holder and including a cam surface for abutting engagement with said cam follower when said cartridge is engaged by said holder, said cam surface being disengaged from said cam follower when said cartridge is disengaged from said holder, said cam being manually operable for adjusting said guard surface with respect to the cutting edge of said at least one blade.
Claim 3
Dependent Claim
25 words
The system of claim 1 wherein said supporting means comprises plastic structure molded for biasing said cam follower into abutting engagement with said cam surface.
Claim 4
Dependent Claim
18 words
The system of claim 1 wherein said cam follower is biased into abutting engagement with said cam surface.
Claim 5
Dependent Claim
14 words
The system of claim 1 wherein said cam Surface is a helical cam surface.
Claim 6
Dependent Claim
114 words
In a safety razor system comprising a cartridge including at least one single cutting edge blade bonded thereto and a guard member having a transverse blade guard surface, and a holder adapted to releasably engage said cartridge, the improvement comprising: means for movably supporting said guard member on said cartridge, and a manually operable member threadedly mounted on said holder for abutting engagement with a portion of said guard member to adjust said guard surface with respect to the cutting edge of said at least one blade when said cartridge is engaged by said holder, said manually operable member being disengaged from said guard member portion when said cartridge is disengaged from said holder.
Claim 7
Dependent Claim
114 words
In a safety razor system comprising a cartridge including at least one single cutting edge blade bonded thereto and a guard member having a transverse blade guard surface, and a holder adapted to releasably engage said cartridge, the improvement comprising: means for movably supporting said guard member on said cartridge, and a manually operable member threadedly mounted on said holder for abutting engagement with a portion of said guard member to adjust said guard surface with respect to the cutting edge of said at least one blade when said cartridge is engaged by said holder, said manually operable member being disengaged from said guard member portion when said cartridge is disengaged from said holder.
Claim 8
Dependent Claim
27 words
The system of claim 5 wherein said supporting means comprises plastic structure molded for biasing said portion of said guard member into abutting engagement with said member.
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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) | 1977-06-17 | 1977-12-17 | 1978-06-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-06-17 | 1981-12-17 | 1982-06-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-06-17 | 1985-12-17 | 1986-06-18 | $7700.00 | Window Closed / Lapsed |