US5005518A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Artificial hair for hair-implantation and preparation process and preparation apparatus thereof
Assignee: Individual
•
Filing: 1989-12-20
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Granted: 1991-04-09
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Expires: 2009-12-20
Abstract
Abstract Apparatus for preparation of artificial hair for hair-implantation comprising a vacuum vessel, a vacuum pump communicating with the vacuum vessel through an on-off valve, a crucible in of the vacuum vessel equipped with a heater for fusing silver, and a rotary container in the vacuum vessel adapted to receive monofilaments of a synthetic resin therein and to rotate to cause amorphous silver to adhere in spots to the monofilament by subjecting them to vacuum deposition of silver at a vacuum degree of 10 -3 to 10 -6 Torr.
Inventors
- 👤 Shiro Yamada
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-23 11:59
CPC Classifications
C; C23; C23C; C23C14/00; C23C14/06; C23C14/14; C23C14/20; A; A61; A61F; A61F2/00; A61F2/02; A61F2/10; A61L; A61L27/00; A61L27/28; A61L27/30; A61L27/306; D; D06; D06M; D06M10/00; D06M10/006; D06M16/00; A61L2430/00; A61L2430/18
Claims Analysis
Total Claims: 3
Claim 1
Independent Claim
175 words
An apparatus for the preparation of artificial hairs for hair-implantation, comprising: a vacuum vessel, a vacuum pump communicating with the vacuum vessel through an on-off valve, a crucible disposed in the vacuum vessel equipped with a heater for fusing silver, and a rotary container provided in the vacuum vessel adapted to receive monofilaments of a synthetic resin therein whereby amorphous silver is caused to adhere in spots to the monofilaments by subjecting said monofilaments to vacuum deposition of said silver at a vacuum degree of 10 -3 -10 -6 Torr at monofilament substrate temperatures of 36° C. or lower upon rotation of said container; wherein the rotary container is formed of a hollow cylinder having closed side ends and wherein said cylinder is provided with a plural number of openings which are made by cutting off a circumferential wall of said hollow cylinder in a vicinity close to said side ends or one side end of said hollow cylinder so as to expose free ends of monofilaments of artificial hairs held in said rotary container.
Claim 2
Independent Claim
175 words
An apparatus for the preparation of artificial hairs for hair-implantation, comprising: a vacuum vessel, a vacuum pump communicating with the vacuum vessel through an on-off valve, a crucible disposed in the vacuum vessel equipped with a heater for fusing silver, and a rotary container provided in the vacuum vessel adapted to receive monofilaments of a synthetic resin therein whereby amorphous silver is caused to adhere in spots to the monofilaments by subjecting said monofilaments to vacuum deposition of said silver at a vacuum degree of 10 -3 -10 -6 Torr at monofilament substrate temperatures of 36° C. or lower upon rotation of said container; wherein the rotary container is formed of a hollow cylinder having closed side ends and wherein said cylinder is provided with a plural number of openings which are made by cutting off a circumferential wall of said hollow cylinder in a vicinity close to said side ends or one side end of said hollow cylinder so as to expose free ends of monofilaments of artificial hairs held in said rotary container.
Claim 3
Dependent Claim
48 words
The apparatus for preparation of the artificial hairs for hair-implantation as claimed in claim 1, wherein the hollow cylinder is provided with at least one line of a series of small conical projections arranged at equal intervals in circumferential directions on an inner surface of said hollow cylinder.
References Cited (Backward Citations)
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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) | 1994-04-08 | 1994-10-08 | 1995-04-09 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1998-04-08 | 1998-10-08 | 1999-04-09 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2002-04-08 | 2002-10-08 | 2003-04-09 | $7700.00 | Window Closed / Lapsed |