US4300285A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Safety razor with blade cleaning means
Assignee: Kaijirushi Hamono Center KK
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Filing: 1979-09-24
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Granted: 1981-11-17
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Expires: 1999-09-24
Abstract
Abstract A safety razor having a retractable blade member. The safety razor has a platform integral with the handle portion of the razor and provided with a recess formed in the upper surface thereof, a blade support member movably received by the recess of the platform, a blade member provided with front cutting edge and secured to and supported by said blade support member so as to project forwardly from the latter, a cover member fixed to the platform and cooperating with the latter in movably holding therebetween the blade support member together with the blade member, and apparatus for moving the blade member between a first position where the cutting edge is fully retracted and disappears behind the cover member and a second position where the cutting edge is fully extended. The cover member and the platform cooperate with each other in defining therebetween an elongated opening through which the cutting edge is moved in and out as the blade supporting member is moved by the above-mentioned apparatus. When the blade supporting member is moved toward the first position, the shaved matters sticking to the cutting edge or its vicinity are scraped off by the peripheral edges of the elongated opening.
Inventors
- 👤 Saijiro Endo
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-06 14:09
CPC Classifications
B; B26; B26B; B26B21/00; B26B21/08; B26B21/14; B26B21/16; B26B21/165
Claims Analysis
Total Claims: 12
Claim 1
Independent Claim
270 words
A safety razor comprising, a platform member including a first blade wiping portion, a handle joined to said platform member, cutting means supported on said platform member and including a blade member having a longitudinal cutting edge, said cutting means being relatively movable with respect to said platform member to move said longitudinal cutting edge from a protracted shaving position to a retracted non-shaving position, and vice versa, said cutting means being supported on said platform member such that said blade member is in contact with said first wiping portion in the vicinity of said longitudinal cutting edge during movement of said cutting means, a cover member disposed over said cutting means to permit exposure of the longitudinal cutting edge of said blade member while otherwise confining said cutting means between said platform member and said cover member, said cover member including means for connecting said cover member to said platform member, and means for moving said cutting means and said longitudinal cutting edge from said protracted position wherein the longitudinal cutting edge is extended from between the cover member and the platform member for use during shaving, to said retracted position wherein the longitudinal cutting edge is not extended for shaving use, thereby enabling said first wiping portion to wipe said blade surface in the vicinity of said longitudinal cutting edge for removal of shaven material and wherein said longitudinal cutting edge is entirely disposed between said first blade wiping portion and said cover member so as to render said longitudinal cutting edge incapable of cutting when said moving means moves said longitudinal cutting edge to said retracted position.
Claim 2
Dependent Claim
270 words
A safety razor comprising, a platform member including a first blade wiping portion, a handle joined to said platform member, cutting means supported on said platform member and including a blade member having a longitudinal cutting edge, said cutting means being relatively movable with respect to said platform member to move said longitudinal cutting edge from a protracted shaving position to a retracted non-shaving position, and vice versa, said cutting means being supported on said platform member such that said blade member is in contact with said first wiping portion in the vicinity of said longitudinal cutting edge during movement of said cutting means, a cover member disposed over said cutting means to permit exposure of the longitudinal cutting edge of said blade member while otherwise confining said cutting means between said platform member and said cover member, said cover member including means for connecting said cover member to said platform member, and means for moving said cutting means and said longitudinal cutting edge from said protracted position wherein the longitudinal cutting edge is extended from between the cover member and the platform member for use during shaving, to said retracted position wherein the longitudinal cutting edge is not extended for shaving use, thereby enabling said first wiping portion to wipe said blade surface in the vicinity of said longitudinal cutting edge for removal of shaven material and wherein said longitudinal cutting edge is entirely disposed between said first blade wiping portion and said cover member so as to render said longitudinal cutting edge incapable of cutting when said moving means moves said longitudinal cutting edge to said retracted position.
Claim 3
Dependent Claim
23 words
A safety razor as claimed in claim 1 wherein said first blade wiping portion comprises an elongated surface projecting against said blade member.
Claim 4
Dependent Claim
85 words
A safety razor as claimed in claim 1, said blade member having a first surface and being in contact with said first wiping portion at said first surface, said blade member further including a second surface substantially parallel to said first surface, and wherein said cover member has a second blade wiping portion in contact with said blade member at said second surface at the vicinity of said longitudinal cutting edge such that said blade member is sandwiched between said first and second wiping portions.
Claim 5
Dependent Claim
48 words
A safety razor as claimed in claim 3 wherein said longitudinal cutting edge is entirely disposed between said first and second blade wiping portions so as to render said longitudinal cutting edge incapable of cutting when said moving means moves said longitudinal cutting edge to said retracted position.
Claim 6
Dependent Claim
62 words
A safety razor as claimed in claim 1 wherein said means for moving said cutting means comprise a manually movable operation member supported on said platform for engagement with said cutting means such that movement of said operation member in a predetermined manner causes movement of said cutting means and said longitudinal cutting edge from said protracted position to said retracted position.
Claim 7
Dependent Claim
42 words
A safety razor as claimed in claim 5 wherein said cutting means includes a slot and said operation member includes a cam member engageable in said slot such that movement of said cam in said slot causes movement of said cutting means.
Claim 8
Dependent Claim
48 words
A safety razor as claimed in claim 6 wherein said operation member is pivotable about a fixed axis and said cam member is eccentric to said fixed axis to cause movement of said cam member in said slot when said operation member is pivoted about said fixed axis.
Claim 9
Dependent Claim
48 words
A safety razor as claimed in claim 5 wherein said operation member includes a cam surface and said cutting means includes a cam follower portion engageable by said cam surface such that movement of said cam surface against said cam follower portion causes movement of said cutting means.
Claim 10
Dependent Claim
28 words
A safety razor as claimed in claim 8 wherein said operation member is linearly slideable with respect to said platform member to cause movement of said cutting means.
Claim 11
Dependent Claim
25 words
A safety razor as claimed in claim 8 wherein said operation member is rotatable about a fixed axis to cause movement of said cutting means.
Claim 12
Dependent Claim
48 words
A safety razor as claimed in claim 1 further including detent means provided on said platform member and said means for moving said cutting means, to detent said moving means in first and second positions respectively corresponding to the protracted and retracted positions of said longitudinal cutting 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) | 1984-11-16 | 1985-05-18 | 1985-11-17 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-11-16 | 1989-05-18 | 1989-11-17 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-11-16 | 1993-05-18 | 1993-11-17 | $7700.00 | Window Closed / Lapsed |