Patent US2177360A successfully refreshed from Google Patents.
US4079741A
Expired / Lapsed
US
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Hair plucking device
Assignee: Individual
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Filing: 1976-10-28
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Granted: 1978-03-21
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Expires: 1996-10-28
Abstract
Abstract A skin-hair plucking device including a compact coiled member within a housing with a substantially smooth external surface exposed for the slidable engagement with the skin and motor driven means for alternately extending and reclosing the windings.
Inventors
- 👤 Yair Daar
- 👤 Shimon Yahav
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 03:37
CPC Classifications
A; A45; A45D; A45D26/00; A45D26/0042; A45D26/0047; A45D26/0052
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
78 words
Apparatus for skin-hair plucking, comprising a portable housing, a compact coiled member having a plurality of closed helical windings, defining a substantially smooth external surface, installed in the housing so that said surface is at least partly exposed for the slidable engagement with the skin, motor driven reciprocating means for alternately extending said member so that said windings become spaced from each other and then re-closed one against the other, and motor driven means for rotating said member.
Claim 2
Dependent Claim
78 words
Apparatus for skin-hair plucking, comprising a portable housing, a compact coiled member having a plurality of closed helical windings, defining a substantially smooth external surface, installed in the housing so that said surface is at least partly exposed for the slidable engagement with the skin, motor driven reciprocating means for alternately extending said member so that said windings become spaced from each other and then re-closed one against the other, and motor driven means for rotating said member.
Claim 3
Dependent Claim
14 words
The apparatus of claim 1 wherein said member is a normally closed coil spring.
Claim 4
Dependent Claim
52 words
The apparatus of claim 2 wherein said reciprocating means comprise a bar extending within said spring and coupled to one end of said spring, the other end of said spring coupled to a sleeve rotatably mounted on said housing, and rotatable cam means provided in the housing for reciprocating the said bar.
Claim 5
Dependent Claim
17 words
The apparatus of claim 3 further comprising transmission means for rotating the said spring by said motor.
Claim 6
Dependent Claim
30 words
The apparatus of claim 4 wherein said transmission means are coupled to said sleeve, and include a clutch and clutch controlling means for cyclically discontinuing the rotation of said spring.
Claim 7
Dependent Claim
30 words
The apparatus of claim 5 wherein said bar is slidably and rotatably mounted within said sleeve and coupled via a cam follower at its other end to an eccentric cam.
Claim 8
Dependent Claim
33 words
The apparatus of claim 5 wherein said bar is slidably and rotatably mounted within said sleeve and coupled to a crank pin projecting from a rotatable crank disc driven by said transmission means.
Claim 9
Dependent Claim
68 words
The apparatus of claim 7 wherein said clutch comprises a first friction disc fixedly mounted on said sleeve, a second friction disc rotatably and slidably mounted on said sleeve, and normally spring biassed against said first disc, said transmission means being coupled to said second disc, and said clutch controlling means comprise displaceable means operatively connected to said disc for disengaging said second disc from said first disc.
Claim 10
Dependent Claim
63 words
The apparatus of claim 8 wherein said displaceable means comprise a pivotally supported lever member coupled at one end thereof to said second disc to displace it from said first disc upon the actuation of the lever by means of a cam-follower provided at the other end of the lever and adapted to be engaged by a revolving surface of said crank disc.
Claim 11
Dependent Claim
27 words
The apparatus of claim 7 wherein brake means are provided for braking the free-running rotation of said first disc after it becomes disengaged from said second disc.
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) | 1981-03-20 | 1981-09-19 | 1982-03-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1985-03-20 | 1985-09-19 | 1986-03-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1989-03-20 | 1989-09-19 | 1990-03-21 | $7700.00 | Window Closed / Lapsed |