Patent US3646673A successfully refreshed from Google Patents.
US3646673A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Electric dry shaver with movable comb
Assignee: Suwa Seikosha KK
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Filing: 1969-08-26
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Granted: 1972-03-07
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Expires: 1989-08-26
Abstract
Abstract An electric dry shaver in which the comb is movably or slidably mounted to the head frame and pressed thereagainst by holding plates so that the resistance of the comb to movement is substantially constant. The reciprocating cutter is biased into engagement with the comb whereby the comb and cutter can move together during shaving to assure constant engagement between the comb and cutter.
Inventors
- 👤 Goichi Yamaoka
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-09 02:00
CPC Classifications
B; B26; B26B; B26B19/00; B26B19/02; B26B19/04
Claims Analysis
Total Claims: 7
Claim 1
Independent Claim
170 words
In a shaver of the type having a frame, a comb carried by said frame, and a cutter biased into engagement with said comb, the combination comprising resilient holding plates and attachment means for securing said holding plates to said frame, each of said holding plates being provided with projections spaced from said attachment means, said projections engaging portions of one side of said comb and pressing portions of an opposite side of said comb into engagement with a surface of said frame, whereby said comb is slidably and frictionally mounted on said frame, and wherein said attachment means includes fastening elements and means for securing said fastening elements to said frame, each fastening element having a cylindrical portion of a first cross-sectional size and an annular groove of a second cross-sectional size, said cylindrical portion passing through said comb with clearance whereby movement of said comb will not be limited by said first shoulder except at the limit of travel, and said annular groove carrying a holding plate therein.
Claim 2
Dependent Claim
170 words
In a shaver of the type having a frame, a comb carried by said frame, and a cutter biased into engagement with said comb, the combination comprising resilient holding plates and attachment means for securing said holding plates to said frame, each of said holding plates being provided with projections spaced from said attachment means, said projections engaging portions of one side of said comb and pressing portions of an opposite side of said comb into engagement with a surface of said frame, whereby said comb is slidably and frictionally mounted on said frame, and wherein said attachment means includes fastening elements and means for securing said fastening elements to said frame, each fastening element having a cylindrical portion of a first cross-sectional size and an annular groove of a second cross-sectional size, said cylindrical portion passing through said comb with clearance whereby movement of said comb will not be limited by said first shoulder except at the limit of travel, and said annular groove carrying a holding plate therein.
Claim 3
Dependent Claim
25 words
A shaver as claimed in claim 1 wherein the cross-sectional size of said cylindrical portion is greater than the cross-sectional size of said annular groove.
Claim 4
Dependent Claim
61 words
A shaver as claimed in claim 1 wherein the portion of each holding plate carried in the corresponding annular groove is provided with an elongated slot, the width of said slot being generally substantially the same as the cross-sectional size of said annular groove, said slot having an enlarged portion to permit disconnection of said holding plate from said fastening element.
Claim 5
Dependent Claim
38 words
A shaver as claimed in claim 3 wherein said attachment means consist of two said fastening elements for each of said holding plates, and said projection are provided at least at the opposite ends of said holding plates.
Claim 6
Dependent Claim
74 words
A shaver as claimed in claim 4 wherein each of said holding plates has two slots for receiving said two fastening elements, said slots being in longitudinal alignment and spaced from one another, said slots being termed primary slots, each of said holding plates having additional projections intermediate the ends of said primary slots, each of said holding plates further including secondary slots transversely spaced on opposite sides of each of said primary slots.
Claim 7
Dependent Claim
86 words
A shaver as claimed in claim 4, wherein each of said holding plates has two slots for receiving said two fastening elements, said slots being in longitudinal alignment, each of said holding plates further including means intermediate the ends of said slots for securing each of said holding plates to said comb, said slots intermediate said last-named projections and each of said fastening elements being open through a side of each of said holding plates whereby to impart greater resiliency to each of said holding plates.
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) | 1975-03-07 | 1975-09-06 | 1976-03-07 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-03-07 | 1979-09-06 | 1980-03-07 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-03-07 | 1983-09-06 | 1984-03-07 | $7700.00 | Window Closed / Lapsed |