US3909941A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Adjustable safety razor
Assignee: Warner Lambert Co LLC
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Filing: 1974-05-03
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Granted: 1975-10-07
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Expires: 1994-05-03
Abstract
Abstract The specific disclosure provides an adjustable safety razor having a guard structure hinged to a blade seat member, and a manually operable cam pivotally mounted on the blade seat member and extending into a channel in the guard structure for moving the guard structure about an axis defined by the hinging means.
Inventors
- 👤 Peter Bowman
- 👤 Ernest F Kiraly
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 19:05
CPC Classifications
B; B26; B26B; B26B29/00
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
221 words
An adjustable safety razor blade cartridge including means for releasably engaging a holder, said cartridge comprising: a. a plastic blade seat member, b. at leasT one blade positioned on said blade seat member, said at least one blade including a forwardly extending cutting edge, c. a cap member above said at least one blade, said cap member being permanently connected to said blade seat member to bond said at least one blade between said cap and blade seat members, d. a transversely elongated plastic guard structure having a skin-engaging surface parallelly spaced forwardly of the cutting edge, e. a plurality of flexible plastic webs integrally formed with and interconnecting said blade seat member and said guard structure, said webs defining a transverse hinging axis parallel to said skin-engaging surface, f. a linear channel formed in an underside of said guard structure, said channel being nonparallelly disposed with respect to said hinging axis, and g. a manually operable cam mounted on said blade seat and movable about a forwardly directed axis, said cam including a portion extending forwardly to beneath said channel and another portion extending upwardly from said forwardly extending portion into and permanently seated in said channel, movement of said cam about said forwardly directed axis adjusts the shaving position of said skin-engaging surface with respect to the cutting edge.
Claim 2
Dependent Claim
221 words
An adjustable safety razor blade cartridge including means for releasably engaging a holder, said cartridge comprising: a. a plastic blade seat member, b. at leasT one blade positioned on said blade seat member, said at least one blade including a forwardly extending cutting edge, c. a cap member above said at least one blade, said cap member being permanently connected to said blade seat member to bond said at least one blade between said cap and blade seat members, d. a transversely elongated plastic guard structure having a skin-engaging surface parallelly spaced forwardly of the cutting edge, e. a plurality of flexible plastic webs integrally formed with and interconnecting said blade seat member and said guard structure, said webs defining a transverse hinging axis parallel to said skin-engaging surface, f. a linear channel formed in an underside of said guard structure, said channel being nonparallelly disposed with respect to said hinging axis, and g. a manually operable cam mounted on said blade seat and movable about a forwardly directed axis, said cam including a portion extending forwardly to beneath said channel and another portion extending upwardly from said forwardly extending portion into and permanently seated in said channel, movement of said cam about said forwardly directed axis adjusts the shaving position of said skin-engaging surface with respect to the cutting edge.
Claim 3
Dependent Claim
13 words
The cartridge of claim 1 wherein said webs have a reduced cross-sectional portion.
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) | 1978-10-06 | 1979-04-07 | 1979-10-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-10-06 | 1983-04-07 | 1983-10-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-10-06 | 1987-04-07 | 1987-10-07 | $7700.00 | Window Closed / Lapsed |