US3700853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for heating of hairwinders
Assignee: Bristol Myers Co
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Filing: 1971-04-26
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Granted: 1972-10-24
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Expires: 1991-04-26
Abstract
Abstract Apparatus for heating hair curlers by means of vaporized liquid which includes a chamber for holding a liquid normally applied to the hair such as water or hair conditioning agents, electrical heating means for vaporizing the liquid and a condensation chamber having curlers mounted therein. The apparatus is provided with a special lid having recesses in its outer surface and downwardly extending projections on its inner surface which may be of various shapes and configurations. The design of the lid and the projections allow for control of the amount and distribution of the condensing liquid onto the curlers. The projections correspond in number and position to the curlers as mounted in the condensation chamber and are of such shape and are so disposed above each curler as to direct the downward flow of condensed liquid from the projections onto and over the surface of each of the curlers.
Inventors
- 👤 Jorgen Bent Jensen
- 👤 Borge Jensen
- 👤 Rasmus Krohn
- 👤 Erik Keldmann
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 17:24
CPC Classifications
A; A45; A45D; A45D4/00; A45D4/08; A45D4/10
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
144 words
An apparatus suitable for housing and heating hair curlers comprising a casing and a lid for said casing, said casing comprising a liquid evaporating chamber, a liquid condensation chamber, and heating means, said liquid condensation chamber being provided with a plurality of support means for supporting curlers, and a corresponding plurality of curlers mounted on the support means, said heating means being disposed to heat the liquid in said evaporating chamber to cause the liquid in vapor form to be directed into the condensation chamber, said lid being comprised of a plurality of downwardly extending projections disposed in positions corresponding to the positions of the curlers on said support means so that at least one projection is located substantially directly above each of the curlers to direct liquid which condenses on the projections to drip downwardly onto and over the surface of the curlers.
Claim 2
Independent Claim
144 words
An apparatus suitable for housing and heating hair curlers comprising a casing and a lid for said casing, said casing comprising a liquid evaporating chamber, a liquid condensation chamber, and heating means, said liquid condensation chamber being provided with a plurality of support means for supporting curlers, and a corresponding plurality of curlers mounted on the support means, said heating means being disposed to heat the liquid in said evaporating chamber to cause the liquid in vapor form to be directed into the condensation chamber, said lid being comprised of a plurality of downwardly extending projections disposed in positions corresponding to the positions of the curlers on said support means so that at least one projection is located substantially directly above each of the curlers to direct liquid which condenses on the projections to drip downwardly onto and over the surface of the curlers.
Claim 3
Dependent Claim
39 words
An apparatus according to claim 1 wherein said projections are pyramidal in shape and so disposed that the apex of at least one pyramid is positioned substantially directly above each of the curlers when mounted on said support means.
Claim 4
Dependent Claim
19 words
An apparatus according to claim 1 wherein each of the projections is shaped as a frustum of a cone.
Claim 5
Dependent Claim
20 words
An apparatus according to claim 3 wherein the frustum has a downwardly extending peripheral edge on the reversed top surface.
Claim 6
Dependent Claim
16 words
An apparatus according to claim 1 wherein each of the projections is shaped as a pyramid.
Claim 7
Dependent Claim
16 words
An apparatus according to claim 1 wherein the projections are in the form of annular ribs.
Claim 8
Dependent Claim
22 words
An apparatus according to claim 1 wherein said lid and projections are formed from a single continuous section of thin-walled transparent material.
Claim 9
Independent Claim
140 words
An apparatus for heating hair curlers comprising a casing having a liquid evaporating chamber and a liquid condensation chamber, heating means for heating liquid in the evaporating chamber, curlers mounted on support means in said condensation chamber, and a lid for said casing, having recesses in the outer surface and downwardly extending projections in the inner surface, said projections corresponding in number and position to the curlers in the condensation chamber and being comprised of surfaces forming an angle with the bottom of the apparatus so that no surface of the projections is substantially parallel to the bottom, said projections being of such shape and being so disposed on the inner surface so as to direct the downward flow of condensed liquid from the projections onto and over the surface of each of the curlers mounted within the condensation chamber.
Claim 10
Independent Claim
140 words
An apparatus for heating hair curlers comprising a casing having a liquid evaporating chamber and a liquid condensation chamber, heating means for heating liquid in the evaporating chamber, curlers mounted on support means in said condensation chamber, and a lid for said casing, having recesses in the outer surface and downwardly extending projections in the inner surface, said projections corresponding in number and position to the curlers in the condensation chamber and being comprised of surfaces forming an angle with the bottom of the apparatus so that no surface of the projections is substantially parallel to the bottom, said projections being of such shape and being so disposed on the inner surface so as to direct the downward flow of condensed liquid from the projections onto and over the surface of each of the curlers mounted within the condensation chamber.
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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) | 1975-10-24 | 1976-04-24 | 1976-10-24 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-10-24 | 1980-04-24 | 1980-10-24 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-10-24 | 1984-04-24 | 1984-10-24 | $7700.00 | Window Closed / Lapsed |