Patent US4881559A successfully refreshed from Google Patents.
US4881559A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair curling system
Assignee: Applica Consumer Products Inc
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Filing: 1986-11-24
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Granted: 1989-11-21
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Expires: 2006-11-24
Abstract
Abstract A hair curling roller system having a plurality of post members having substantially the same outer diameter for heating the rollers and a plurality of rollers having inner cavities for mounting the rollers on the posts with such inner cavities having substantially the same inner diameters. There are at least two groups of the rollers, with the outer diameter of the rollers of one group being larger than the outer diameter of the rollers of the other group. Each of the curling rollers includes an interior core member having an opening in one lateral end of the core member and longitudinally extending within the core member; this core member is formed of a material highly conductive of heat. An elongated metal sleeve is positioned with the opening of the core member of each roller and is attached to the inside of such core member. In each of the larger rollers the interior core has a central hub and a plurality of heat radiating fins extending out from the hub for facilitating the transfer of heat to the outer surface of the roller. A hollow sleeve member with a flocked outer surface is arranged over the core member. First and second end rings are attached to the core member at the ends of the roller; each of these end rings has a flange extending over but spaced from the adjacent end portion of the flocked outer surface of the sleeve member.
Inventors
- 👤 Lai Kin
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-02 19:51
CPC Classifications
A; A45; A45D; A45D4/00; A45D4/16; A45D2/00; A45D2/36
Claims Analysis
Total Claims: 35
Claim 1
Independent Claim
278 words
A hair curling roller system comprising: a housing; a plurality of post members arranged within said housing and being capable of generating heat in hair rollers placed on said post members, all of said post members of said system being of substantially the same diameter; a plurality of rollers for curling hair, each of said rollers having an inner core means with an axially extending inner cavity and an outer surface for contact with hair to be rolled; a first group of said plurality of rollers having a first outer diameter along their center section of their outer surface and a second group of said plurality of rollers having a second outer diameter along their center section of their outer surface with said second outer diameter being larger than said first outer diameter, each of said rollers of both of said groups of rollers having said axially extending inner cavity extending from an opening at one end of said roller and said inner cavities of all of said rollers having substantially the same inner diameter, each of said rollers being capable of being arranged on one of said post members such that said post member extends into said inner cavity of the respective said roller; said core means of each of said rollers of said second group of rollers including heat transfer means for facilitating the transfer of heat from its said inner cavity to its said outer surface so that when both said groups of said rollers are positioned on said post members and are heated at approximately equal rates the level of heat on the outer surface of all of said rollers is approximately the same.
Claim 2
Dependent Claim
278 words
A hair curling roller system comprising: a housing; a plurality of post members arranged within said housing and being capable of generating heat in hair rollers placed on said post members, all of said post members of said system being of substantially the same diameter; a plurality of rollers for curling hair, each of said rollers having an inner core means with an axially extending inner cavity and an outer surface for contact with hair to be rolled; a first group of said plurality of rollers having a first outer diameter along their center section of their outer surface and a second group of said plurality of rollers having a second outer diameter along their center section of their outer surface with said second outer diameter being larger than said first outer diameter, each of said rollers of both of said groups of rollers having said axially extending inner cavity extending from an opening at one end of said roller and said inner cavities of all of said rollers having substantially the same inner diameter, each of said rollers being capable of being arranged on one of said post members such that said post member extends into said inner cavity of the respective said roller; said core means of each of said rollers of said second group of rollers including heat transfer means for facilitating the transfer of heat from its said inner cavity to its said outer surface so that when both said groups of said rollers are positioned on said post members and are heated at approximately equal rates the level of heat on the outer surface of all of said rollers is approximately the same.
Claim 3
Dependent Claim
31 words
A system according to claim 1, wherein said heat transfer means in at least one of said rollers of said second group of rollers includes a plurality of heat radiating fins.
Claim 4
Dependent Claim
58 words
A system according to claim 1, wherein said heat transfer means in at least one of said rollers of said second group of rollers includes a cylindrical hub surrounding said inner cavity and a plurality of ribs arranged around said hub and extending in a radial direction out from said hub with air spaces remaining between adjacent ribs.
Claim 5
Dependent Claim
42 words
A system according to claim 3, wherein at least one of said rollers has an outer sleeve member and said outer sleeve member is coated with a flocking material so that the outer surface of said roller is a flocked outer surface.
Claim 6
Dependent Claim
32 words
A system according to claim 4, wherein at least one of said rollers has flanges mounted on its longitudinal ends, said flanges extend over but are spaced from said flocked outer sleeve.
Claim 7
Dependent Claim
40 words
A system according to claim 1, further comprising a prong member attached to one side of said housing and a carrying case for holding accessories for said rollers, said carrying case being capable of being hooked onto said prong member.
Claim 8
Dependent Claim
28 words
A system according to claim 6, wherein said prong member also serves to hold an electrical cord for said system which can be wrapped around said prong member.
Claim 9
Dependent Claim
121 words
A roller for curling hair comprising: a hollow outer sleeve; a central core member having an opening in one lateral end of said core member and extending longitudinally within said core member and said core member being formed of a material highly conductive of heat; a plurality of ribs attached to and extending in a radial direction out from said core member, said ribs being formed of a material highly conductive of heat and being spaced around said core member and separate from each other by an air space for facilitating rapid transfer of heat from said central core member to said hollow outer sleeve member; and said hollow out sleeve member being arranged around and being adjacent to said ribs.
Claim 10
Dependent Claim
121 words
A roller for curling hair comprising: a hollow outer sleeve; a central core member having an opening in one lateral end of said core member and extending longitudinally within said core member and said core member being formed of a material highly conductive of heat; a plurality of ribs attached to and extending in a radial direction out from said core member, said ribs being formed of a material highly conductive of heat and being spaced around said core member and separate from each other by an air space for facilitating rapid transfer of heat from said central core member to said hollow outer sleeve member; and said hollow out sleeve member being arranged around and being adjacent to said ribs.
Claim 11
Dependent Claim
51 words
A roller according to claim 8, further comprising a first end ring attached to said core member at one lateral end thereof; and a second end ring having an attachment member, said second end ring being connected to said core member at the other lateral end thereof by said attachment member.
Claim 12
Dependent Claim
22 words
A roller according to claim 9, wherein both said first and second end rings are formed of a low heat conducting material.
Claim 13
Dependent Claim
71 words
A roller according to claim 9, wherein said opening in said core member extends through said core member from one lateral end surface to the other lateral end surface, said attachment member is a prong mounted on an inner surface of said second end ring facing said core member, and said prong is inserted into said opening in said core member for securing said second end ring to said core member.
Claim 14
Dependent Claim
40 words
A roller according to claim 11, wherein the portion of said opening at the end of said core member adjacent said second end ring is of a smaller diameter than the remainder of said opening extending through said core member.
Claim 15
Dependent Claim
68 words
A roller according to claim 12, wherein said prong has two parts formed of a resilient material with a space between said parts so that said parts can be squeezed together upon insertion of said prong into said opening in said core member and will snap back to their original position once said prong is inserted so as to secure said second end ring to said core member.
Claim 16
Dependent Claim
24 words
A roller according to claim 13, wherein both said first and second end rings are formed of a material having low heat conducting properties.
Claim 17
Dependent Claim
45 words
A roller according to claim 13, wherein said first end ring has an opening therein, such opening in said first end member is aligned with said opening in said core member and is approximately of the same diameter as said opening in said core member.
Claim 18
Dependent Claim
50 words
A roller according to claim 15, wherein said remainder of said opening in said core member is of a sufficient diameter and extends for a sufficient length from said first end ring to enable said roller to be arranged on a heat conductive rod for transmitting heat to said roller.
Claim 19
Dependent Claim
66 words
A roller for curling hair comprising: a central core member having an axially extending inner cavity and a plurality of radially extending air gaps formed within said core members; a longitudinally extending cylindrical member surrounding said core member; a first end ring attached to said core member at one lateral end thereof; and a second end ring mounted at the opposite end of said cylindrical member.
Claim 20
Dependent Claim
66 words
A roller for curling hair comprising: a central core member having an axially extending inner cavity and a plurality of radially extending air gaps formed within said core members; a longitudinally extending cylindrical member surrounding said core member; a first end ring attached to said core member at one lateral end thereof; and a second end ring mounted at the opposite end of said cylindrical member.
Claim 21
Dependent Claim
23 words
A roller according to claim 17, wherein said first and second end rings are formed of a material having low heat conducting properties.
Claim 22
Dependent Claim
255 words
A hair curling roller system comprising: a housing; a plurality of post members arranged within said housing and being capable of generating heat in hair rollers placed on said post members; a plurality of rollers for curling hair, each of said rollers having an inner core means with an axially extending inner cavity and an outer surface for contact with hair to be rolled; a first group of said plurality of rollers having a first outer diameter along their center section of their outer surfaces and a second group of said plurality of rollers having a second outer diameter along their center section of their outer surfaces with said second outer diameter being larger than said first outer diameter, each of said rollers of both of said groups of rollers having said axially extending inner cavity extending from an opening at one end of said roller and said cavities of all of said rollers having substantially the same inner diameter, each of said rollers being capable of being arranged on one of said post members such that said post member extends into said inner cavity of the respective said roller: said core means of each of said rollers of said second group of rollers including a cylindrical hub surrounding said inner cavity and a plurality of heat radiating ribs arranged around said hub and extending in a radial direction out from said hub with air spaces remaining between adjacent ribs, for facilitating the transfer of heat from its said inner cavity to its outer surface.
Claim 23
Dependent Claim
255 words
A hair curling roller system comprising: a housing; a plurality of post members arranged within said housing and being capable of generating heat in hair rollers placed on said post members; a plurality of rollers for curling hair, each of said rollers having an inner core means with an axially extending inner cavity and an outer surface for contact with hair to be rolled; a first group of said plurality of rollers having a first outer diameter along their center section of their outer surfaces and a second group of said plurality of rollers having a second outer diameter along their center section of their outer surfaces with said second outer diameter being larger than said first outer diameter, each of said rollers of both of said groups of rollers having said axially extending inner cavity extending from an opening at one end of said roller and said cavities of all of said rollers having substantially the same inner diameter, each of said rollers being capable of being arranged on one of said post members such that said post member extends into said inner cavity of the respective said roller: said core means of each of said rollers of said second group of rollers including a cylindrical hub surrounding said inner cavity and a plurality of heat radiating ribs arranged around said hub and extending in a radial direction out from said hub with air spaces remaining between adjacent ribs, for facilitating the transfer of heat from its said inner cavity to its outer surface.
Claim 24
Dependent Claim
42 words
A system according to claim 19, wherein each of said rollers has an outer sleeve member and said outer sleeve member is coated with a flocking material so that the outer surface of each of said rollers is a flocked outer surface.
Claim 25
Dependent Claim
41 words
A system according to claim 20 wherein each of said rollers has flanges mounted on its longitudinal ends, said flanges extend over but are spaced from said flocked outer sleeve, and said flanges are formed of a low heat conducting material.
Claim 26
Dependent Claim
40 words
A system according to claim 19, further comprising a prong member attached to one side of said housing and a carrying case for holding accessories for said rollers, said carrying case being capable of being hooked onto said prong member.
Claim 27
Dependent Claim
28 words
A system according to claim 22, wherein said prong member also serves to hold an electrical cord for said system which can be wrapped around said prong member.
Claim 28
Dependent Claim
273 words
A hair curling roller system comprising: a housing; a plurality of post members, all having substantially the same outer diameters, arranged within said housing and adapted to be heated for heating hair rollers placed on said post members; a plurality of rollers for curling hair, each of said rollers having an inner core means with an axially extending inner cavity and having an outer surface for contact with hair to be rolled; a first group of said plurality of rollers having a first group outer diameter along their center section of their outer surfaces and a second group of said plurality of rollers having a second group outer diameter along their center section of their outer surfaces, said second group outer diameter being larger than said first group outer diameter, each of said rollers of both of said groups of rollers having said axially extending inner cavity extending from an opening at one end of said roller and said cavities of all of said rollers of both of said groups having substantially the same inner diameters, each of said rollers of both of said groups being capable of being arranged on any one of said post members such that said post member extends into said inner cavity of the respective said roller; said core means of each of said rollers of said second group of rollers including a cylindrical hub surrounding said inner cavity and a plurality of heat radiating ribs arranged around said hub and extending in a radial direction out from said hub with air spaces remaining between adjacent ribs, for transferring heat from said inner cavity to said outer surface.
Claim 29
Dependent Claim
273 words
A hair curling roller system comprising: a housing; a plurality of post members, all having substantially the same outer diameters, arranged within said housing and adapted to be heated for heating hair rollers placed on said post members; a plurality of rollers for curling hair, each of said rollers having an inner core means with an axially extending inner cavity and having an outer surface for contact with hair to be rolled; a first group of said plurality of rollers having a first group outer diameter along their center section of their outer surfaces and a second group of said plurality of rollers having a second group outer diameter along their center section of their outer surfaces, said second group outer diameter being larger than said first group outer diameter, each of said rollers of both of said groups of rollers having said axially extending inner cavity extending from an opening at one end of said roller and said cavities of all of said rollers of both of said groups having substantially the same inner diameters, each of said rollers of both of said groups being capable of being arranged on any one of said post members such that said post member extends into said inner cavity of the respective said roller; said core means of each of said rollers of said second group of rollers including a cylindrical hub surrounding said inner cavity and a plurality of heat radiating ribs arranged around said hub and extending in a radial direction out from said hub with air spaces remaining between adjacent ribs, for transferring heat from said inner cavity to said outer surface.
Claim 30
Dependent Claim
21 words
A hair curling roller system as in claim 24 wherein said post members and said inner cavities approximate right circular cylinders.
Claim 31
Dependent Claim
34 words
A hair curling roller system as in claim 25 wherein said inner core means of each of said rollers of said first group of rollers is essentially solid surrounding said axially extending inner cavity.
Claim 32
Dependent Claim
69 words
A hair curling roller system as in claim 26, wherein the dimensions of said heat radiating ribs have magnitudes such that the level of heat on the center section of said second group of rollers more closely proximates the level of heat on the center section of said first group of rollers than if said inner core means of said second group of rollers was an essentially solid core.
Claim 33
Dependent Claim
75 words
A hair curling roller system as in claim 26, wherein the dimensions of said heat radiating ribs have magnitudes such that at a temperature useful for curling hair, the level of heat on said center section of said second group of rollers more closely proximates the level of heat on said center section of said first group of rollers than if said inner core means of said second group of rollers was essentially solid core.
Claim 34
Dependent Claim
54 words
A hair curling roller system as in claim 26, wherein the dimensions of said heat radiating ribs have magnitudes such that the level of heat on said center section of said second group of rollers is approximately the same as the level of heat on said center section of said first group of rollers.
Claim 35
Dependent Claim
20 words
A hair curling roller system as in claim 24 wherein the said outer surface of said rollers is smoothly contoured.
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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) | 1992-11-20 | 1993-05-22 | 1993-11-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1996-11-20 | 1997-05-22 | 1997-11-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 2000-11-20 | 2001-05-22 | 2001-11-21 | $7700.00 | Window Closed / Lapsed |