Patent US3585357A successfully refreshed from Google Patents.
US3585357A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Hair setting device
Assignee: BRIAN LLOYD CO Inc
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Filing: 1969-01-30
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Granted: 1971-06-15
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Expires: 1989-01-30
Abstract
Abstract An electrical open-mouthed oven is provided to heat hollow hair rollers which contain a heat storage material. This material undergoes a change of state as the rollers are heated in the oven. It regains its original state upon cooling with the user''s hair wrapped around the rollers. At least a portion of each roller placed in the oven is adjacent a longitudinal strip heat sink which forms one internal wall of the oven. A graphite coated heating element is secured to the opposite surface of the heat sink and is covered with appropriate insulation. Layers of foam polyester insulation serve as internal oven walls on the opposite side, end and bottom of the oven. The foam insulation is enclosed within a shell which serves as a carrying case for the oven.
Inventors
- 👤 Arnold A Mandell
- 👤 Henry Schein
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 16:23
CPC Classifications
A; A45; A45D; A45D4/00; A45D4/16
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
241 words
An electrical hair setting device comprising an outer caSing, an open-mouthed rectangular hair roller oven having a rectangular heating well, a plurality of hollow hair rollers containing heat storage material, said rollers being disposed in said well to be uniformly and simultaneously heated therein, the diameters of said rollers being greater than the side-to-side dimension of the well whereby the rollers are snugly admitted into the well, said oven comprising opposed side, bottom and end heat insulation planar slabs of foamed synthetic plastic positioned within said casing, said slabs having outer and inner surfaces, said outer surfaces abutting contacting the interior of said casing, said inner surfaces being mutually spaced and forming said well, said well being open at its top, the upper ends of said rollers projecting above the top of said well, a flat broad-surfaced electric heating element having electrical insulation layers overlying and abutting and being coextensive with opposite broad surfaces thereof, a flat broad-surfaced heat sink coextensive with said heating element and layers, one insulating layer overlying and abutting an inner face of one side slab, the heat sink overlying and abutting the other insulating layer, said heating element, layers and heat sink being coextensive with an inner side face of the well, the heat sink being exposed at the inside of the well to be engaged by the rollers in the well, and electrical means controlling said heating element to regulate the temperature within said well.
Claim 2
Dependent Claim
241 words
An electrical hair setting device comprising an outer caSing, an open-mouthed rectangular hair roller oven having a rectangular heating well, a plurality of hollow hair rollers containing heat storage material, said rollers being disposed in said well to be uniformly and simultaneously heated therein, the diameters of said rollers being greater than the side-to-side dimension of the well whereby the rollers are snugly admitted into the well, said oven comprising opposed side, bottom and end heat insulation planar slabs of foamed synthetic plastic positioned within said casing, said slabs having outer and inner surfaces, said outer surfaces abutting contacting the interior of said casing, said inner surfaces being mutually spaced and forming said well, said well being open at its top, the upper ends of said rollers projecting above the top of said well, a flat broad-surfaced electric heating element having electrical insulation layers overlying and abutting and being coextensive with opposite broad surfaces thereof, a flat broad-surfaced heat sink coextensive with said heating element and layers, one insulating layer overlying and abutting an inner face of one side slab, the heat sink overlying and abutting the other insulating layer, said heating element, layers and heat sink being coextensive with an inner side face of the well, the heat sink being exposed at the inside of the well to be engaged by the rollers in the well, and electrical means controlling said heating element to regulate the temperature within said well.
Claim 3
Dependent Claim
46 words
The electrical hair setting device of claim 1 wherein a lid is hingedly connected to said outer casing and movable from a position wherein the top of said well is exposed, to a position wherein said lid closes the top of said well within said casing.
Claim 4
Dependent Claim
35 words
The electrical hair setting device of claim 1 wherein said heat sink is in the form of a channel with an elongate flat surface and parallel opposed flanges projecting normally outwardly from said flat surface.
Claim 5
Dependent Claim
24 words
The electrical hair setting device of claim 3 wherein portions of one of said slabs forming said well are positioned between said opposed flanges.
Claim 6
Dependent Claim
49 words
The electrical hair setting device of claim 3 wherein each said roller is cylindrical in shape, a closed circular bottom positioned on said roller, said bottom extending beyond the cylindrical periphery of said roller and a portion of said bottom abutting the undersurface of one of said opposed flanges.
Claim 7
Dependent Claim
69 words
The electrical hair setting device of claim 1 wherein at least one of said slabs forming said well is constructed of resilient material, wherein the rollers are cylindrical in shape, and wherein because the diameter of the rollers is greater than the side-to-side dimension of the well the rollers must be forced into the well and the resilience of the side slabs biases the rollers and heat sink together.
Claim 8
Dependent Claim
177 words
An electrical hair setting device, said hair setting device comprising an outer rectangular casing, an open-mouthed rectangular oven disposed within said casing, a plurality of hollow cylindrical hair rollers containing a heat storage material disposed within said casing, said oven having opposed sidewalls, walls, end walls and a bottom wall, said walls being of planar shape, the diameters of said rollers being greater than the side-to-side dimension of the well whereby the rollers must be forced into the well, a flat broad-surfaced heating element comprising an electrical resistance connected between current leads and having insulation on opposite sides thereof, said heating element being coextensive with and overlying an inner side face of the well, mounting means within said casing for supporting said heating element in its aforesaid position and spaced from the casing, and resilient means within said oven urging said heating element toward the opposed wall of the well so that the rollers must be forced into the well and the resilient means causes the rollers to be contacted by an element at an elevated temperature.
Claim 9
Dependent Claim
177 words
An electrical hair setting device, said hair setting device comprising an outer rectangular casing, an open-mouthed rectangular oven disposed within said casing, a plurality of hollow cylindrical hair rollers containing a heat storage material disposed within said casing, said oven having opposed sidewalls, walls, end walls and a bottom wall, said walls being of planar shape, the diameters of said rollers being greater than the side-to-side dimension of the well whereby the rollers must be forced into the well, a flat broad-surfaced heating element comprising an electrical resistance connected between current leads and having insulation on opposite sides thereof, said heating element being coextensive with and overlying an inner side face of the well, mounting means within said casing for supporting said heating element in its aforesaid position and spaced from the casing, and resilient means within said oven urging said heating element toward the opposed wall of the well so that the rollers must be forced into the well and the resilient means causes the rollers to be contacted by an element at an elevated temperature.
Claim 10
Dependent Claim
56 words
The electrical hair setting device of claim 7 whereIn said electrical resistance is secured to a first face of a heat sink layer, said heat sink layer having a second opposed face in abutting contact with said hair rollers, said resilient means maintaining said hair rollers in juxtaposition against said second face of said heat sink.
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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) | 1974-06-14 | 1974-12-14 | 1975-06-15 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-06-14 | 1978-12-14 | 1979-06-15 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-06-14 | 1982-12-14 | 1983-06-15 | $7700.00 | Window Closed / Lapsed |