US5364394A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Method of removing hair from the body and inhibiting future growth
Assignee: United Productions Inc
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Filing: 1993-10-21
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Granted: 1994-11-15
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Expires: 2013-10-21
Abstract
Abstract Hair is removed from the body and future growth is inhibited by treating the outer surface of the hair so as to reduce RF energy dissipation and permit more RF energy to reach the hair root and thereby damage or destroy the same. The hair is treated with a conductive material such as a conductive metal, a conductive solution such as a metal salt, an acid, or a base.
Inventors
- 👤 Thomas L. Mehl
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-25 05:11
CPC Classifications
A; A61; A61K; A61K8/00; A61K8/02; A45; A45D; A45D26/00; A61B; A61B18/00; A61B18/04; A61B18/12; A61B18/14; A61B18/1442; A61Q; A61Q7/00; A61Q7/02; A61Q9/00; A61Q9/04; B; B26; B26B; B26B21/00; B26B21/40; B26B21/44; B26B21/446; A61B2018/00315; A61B2018/00452; A61B2018/00476; A61N; A61N5/00; A61N5/06; A61N5/0613; A61N5/0616; A61N5/0617
Claims Analysis
Total Claims: 24
Claim 1
Independent Claim
267 words
The method of removing a hair from a skin surface of an individual and inhibiting future growth by causing said hair to be sufficiently damaged at its root so as to be more readily releasable at its root and removable by a very gentle force rather than the normal force required to pluck a non-treated hair from the skin surface, comprising the steps of: a) treating the outer surface of the hair which has a longitudinally extending inner central core to reduce RF resistance between the outer hair surface and said inner central core of the hair to permit more RF energy during an entire treatment time to enter the inner central core and travel therealong within the hair interior to reach the hair root; b) firmly grasping the hair between a pair of opposed RF insulated hair engaging surfaces at a point relatively close to but clear of and above the skin surface of the grasped hair; c) applying RF energy to at least said one of said hair engaging surfaces; d) holding said hair engaging surfaces in firm engagement with said hair while applying focussed RF energy to said hair for a period of time sufficient to cause the RF energy to travel across the hair and into the inner core of the hair and to damage the hair root sufficiently to permit the hair to be removed by a very gentle upward lift; e) applying a gentle upward lift to the hair by the hair engaging surfaces during application of said RF energy, without exerting the tug ordinarily required for removal of non-treated hair.
Claim 2
Independent Claim
267 words
The method of removing a hair from a skin surface of an individual and inhibiting future growth by causing said hair to be sufficiently damaged at its root so as to be more readily releasable at its root and removable by a very gentle force rather than the normal force required to pluck a non-treated hair from the skin surface, comprising the steps of: a) treating the outer surface of the hair which has a longitudinally extending inner central core to reduce RF resistance between the outer hair surface and said inner central core of the hair to permit more RF energy during an entire treatment time to enter the inner central core and travel therealong within the hair interior to reach the hair root; b) firmly grasping the hair between a pair of opposed RF insulated hair engaging surfaces at a point relatively close to but clear of and above the skin surface of the grasped hair; c) applying RF energy to at least said one of said hair engaging surfaces; d) holding said hair engaging surfaces in firm engagement with said hair while applying focussed RF energy to said hair for a period of time sufficient to cause the RF energy to travel across the hair and into the inner core of the hair and to damage the hair root sufficiently to permit the hair to be removed by a very gentle upward lift; e) applying a gentle upward lift to the hair by the hair engaging surfaces during application of said RF energy, without exerting the tug ordinarily required for removal of non-treated hair.
Claim 3
Dependent Claim
31 words
The method of claim 1 and wherein: a) the treatment of the outer surface of the hair includes impregnating the outer surface of the hair with an RF energy conductive material.
Claim 4
Dependent Claim
22 words
The method of claim 2 and including the step of: a) using RF energy conductive material in the form of a liquid.
Claim 5
Dependent Claim
51 words
The method of claim 3 and including the step of: a) using RF energy conductive liquid in the form of a hydrolytic compound taken from the group consisting of: 1) water soluble inorganic and organic salts; 2) water soluble inorganic and organic acids; and 3) water soluble inorganic and organic bases.
Claim 6
Dependent Claim
29 words
The method of claim 4 and including the step of: a) using said water soluble salts, acids and bases in a water solution of from about 0.5% to saturation.
Claim 7
Dependent Claim
31 words
The method of claim 3 and including the step of: a) using RF liquid in the form of a salt taken from the group consisting of gold, silver, copper and platinum.
Claim 8
Dependent Claim
23 words
The method of claim 2 and including the step of: a) using RF energy conductive material in the form of a viscous material.
Claim 9
Dependent Claim
23 words
The method of claim 2 and including the step of: a) using RF energy conductive material in the form of a hydrolytic material.
Claim 10
Dependent Claim
28 words
The method of claim 2 and including the step of: a) washing the hair prior to impregnating the outer surface of the hair with an RF conductive material.
Claim 11
Dependent Claim
28 words
The method of claim 2 and including the step of: a) steaming the hair prior to impregnating the outer surface of the hair with an RF conductive material.
Claim 12
Dependent Claim
37 words
The method of claim 2 and including the step of: a) treating the outer surface of the hair by metabolizing in the body of the individual a metallic compound to increase overall hair conductivity during hair growth.
Claim 13
Dependent Claim
19 words
The method of claim 1 and wherein: a) the treatment of the outer surface of the hair includes abrading.
Claim 14
Dependent Claim
14 words
The method of claim 12 and wherein: a) the abrading step is chemical abrading.
Claim 15
Dependent Claim
14 words
The method of claim 12 and wherein: a) the abrading step is mechanical abrading.
Claim 16
Dependent Claim
14 words
The method of claim 14 and wherein: a) the mechanical abrading step is sanding.
Claim 17
Dependent Claim
31 words
The method of claim 1 and including the step of: a) applying said RF energy for a period of not less than about 21/2 seconds and not exceeding about 71/2 seconds.
Claim 18
Dependent Claim
15 words
The method of claim 16 and wherein: a) said time period is about 5 seconds.
Claim 19
Dependent Claim
38 words
The method of claim 1 and including the step of: a) maintaining a dielectric between the RF energy insulated hair engaging surfaces and the skin surface at all times during the application of RF energy to the hair.
Claim 20
Independent Claim
338 words
The method of removing hair from a skin surface of the body of an individual and inhibiting future growth to cause said hair to be sufficiently damaged at its root so as to be releasable at its root and removed by a very gentle force rather than normal force required to pluck a non-treated hair from the body, comprising the steps of: a) treating the cuticle of a hair having a longitudinally extending inner central core to cause the hair to absorb an RF energy conductive material to thereby reduce RF resistance between the outer surface and the inner central core of the hair during an entire period of RF application and to thereby reduce RF energy losses and permit more RF energy to travel down the core to reach the hair root; b) firmly grasping the hair between a pair of opposed RF insulated hair engaging surfaces at a point relatively close to but clear of and above the skin surface, at least one of the hair engaging surfaces being capable of emitting focussed RF energy to said grasped hair; c) applying RF energy to at least one of said hair engaging surfaces; d) holding said hair engaging surfaces in firm engagement with said hair while applying RF energy to said hair for a period of time sufficient to cause the RF energy to travel into the inner core of said hair and along the core to said hair root to cause said hair at said root to be damaged sufficiently to inhibit future growth; e) sensing when there is sufficient damage to said hair root to permit ready release of said hair from said skin surface by applying a gentle upward pull by said hair engaging surfaces away from said skin surface during application of said RF energy without requiring the normal tug required to pull a nontreated hair; and, f) completely removing said treated hair from said skin surface by continuing the gentle upward movement away from said skin surface by said hair engaging surfaces.
Claim 21
Independent Claim
338 words
The method of removing hair from a skin surface of the body of an individual and inhibiting future growth to cause said hair to be sufficiently damaged at its root so as to be releasable at its root and removed by a very gentle force rather than normal force required to pluck a non-treated hair from the body, comprising the steps of: a) treating the cuticle of a hair having a longitudinally extending inner central core to cause the hair to absorb an RF energy conductive material to thereby reduce RF resistance between the outer surface and the inner central core of the hair during an entire period of RF application and to thereby reduce RF energy losses and permit more RF energy to travel down the core to reach the hair root; b) firmly grasping the hair between a pair of opposed RF insulated hair engaging surfaces at a point relatively close to but clear of and above the skin surface, at least one of the hair engaging surfaces being capable of emitting focussed RF energy to said grasped hair; c) applying RF energy to at least one of said hair engaging surfaces; d) holding said hair engaging surfaces in firm engagement with said hair while applying RF energy to said hair for a period of time sufficient to cause the RF energy to travel into the inner core of said hair and along the core to said hair root to cause said hair at said root to be damaged sufficiently to inhibit future growth; e) sensing when there is sufficient damage to said hair root to permit ready release of said hair from said skin surface by applying a gentle upward pull by said hair engaging surfaces away from said skin surface during application of said RF energy without requiring the normal tug required to pull a nontreated hair; and, f) completely removing said treated hair from said skin surface by continuing the gentle upward movement away from said skin surface by said hair engaging surfaces.
Claim 22
Dependent Claim
31 words
The method of claim 19 and including the step of: a) applying said RF energy for a period of not less than about 21/2 seconds and not exceeding about 71/2 seconds.
Claim 23
Dependent Claim
15 words
The method of claim 19 and wherein: a) said time period is about 5 seconds.
Claim 24
Dependent Claim
38 words
The method of claim 19 and including the step of: a) maintaining a dielectric between the RF energy insulated hair engaging surfaces and the skin surface at all times during the application of RF energy to the hair.
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) | 1997-11-14 | 1998-05-16 | 1998-11-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 2001-11-14 | 2002-05-16 | 2002-11-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2005-11-14 | 2006-05-16 | 2006-11-15 | $7700.00 | Window Closed / Lapsed |