US3410985A - Electrically heated hair curling apparatus - Google Patents

Electrically heated hair curling apparatus Download PDF

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Publication number
US3410985A
US3410985A US54215166A US3410985A US 3410985 A US3410985 A US 3410985A US 54215166 A US54215166 A US 54215166A US 3410985 A US3410985 A US 3410985A
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heat
plate
hair
casing
support
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Expired - Lifetime
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Giacchero Giovanni
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PENELOPE SpA
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PENELOPE SpA
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    • AHUMAN NECESSITIES
    • A45HAND OR TRAVELLING ARTICLES
    • A45DHAIRDRESSING OR SHAVING EQUIPMENT; MANICURING OR OTHER COSMETIC TREATMENT
    • A45D4/00Separate devices designed for heating hair curlers or hair-wavers
    • A45D4/16Independent devices characterised by heating the hair-curling or hair-waving means before use

Description

Nov. 12, 1968 G. GIACCHERO 2 Sheets-Sheet 1 Nov. 12, 1968 e. GIACCHERO ELECTRICALLY HEATED HAIR CURLING APPARATUS -led April 12, 196

2 Sheets-Sheet 2 United States Patent 3,410,985 ELECTRICALLY HEATED HAIR CURLING APPARATUS Giovanni Giacchero, Turin, Italy, assignor, by mesneassignments, to Penelope S.p.A., Turin, Italy Filed Apr. 12, 1966, Ser. No. 542,151 Claims priority, application Italy, Jan. 10, 1966, 787/66 Claims. (Cl. 219222) ABSTRACT OF THE DISCLOSURE A hair curler heater has a thermostatically controlled electrically heated support plate provided with upstanding short projections each of which cooperates with a complementary depression in the bottom of a plastic coated hair curler. The curlers are filled with a heat storing substance and have a central core of high heat conductivity material. A heat insulating diaphragm is spaced above the projections and has holes so that curlers may rest on the projections. A transparent cover is provided over the plate. The cover controls an electric heater switch and signal lamps are provided to indicate operation.

This invention relates to hair curler heaters.

British patent specification No. 499,904 of 1936 discloses a hair curler heater comprising a plurality of rods adapted to transmit heat, on which the hair curlers are slipped and heated from the inside. The rods extend at right angles beyond a hollow or solid conductive support to which heat is supplied.

British patent specification No. 419,043 of 1934 discloses heating hair curlers from the inside by placing them on electrically heated rods which are in contact with a metallic inner liner of the hair curler. According to this specification the liner is hollow and filled with a heat retaining substance.

British patent specification No. 581,101 of 1944 discloses slipping hair curlers for heating on rods carried by a plate incorporating a heating resistor controlled by a thermostat.

Known apparatus for heating hair curlers are expensive in construction, require special attention in use and are not exempt from danger to the user.

In order to obviate the above drawbacks this invention provides an apparatus for heating hair curlers, of the type comprising a plate-shaped conductive support to which heat is supplied and a plurality of heat conductive elements extending at right angles to the said support, each adapted to reach into a hair curler for transmitting heat thereto, wherein the heat conductive elements exend in height from the support a distance equalling a small fraction of the height of the hair curlers. Each hair curler comprises a metallic casing having a bottom portion shaped to interfit with one of the heat conductive elements, and a coating on the outer surface of the easing leaves the bottom portion exposed. The apparatus is also provided with a heat insulating partition superposed in a parallel relationship to the plate-shaped conductive support from which it is spaced a distance substantially exceeding the height of the heat conducting elements, the partition having openings coaxial with the heat conductive elements, the openings being of a size such as to allow the hair curlers to extend therethrough.

The invention shall be described hereafter with reference to the accompanying drawings which are given by way of a non-limiting example and show a preferred embodiment of the invention.

FIGURE 1 is a perspective view of an apparatus for heating hair curlers according to this invention;

FIGURE 2 is a cross sectional view taken on line IIII of FIGURE 1;

FIGURE 3 is an enlarged detailed view of FIGURE 2; and

FIGURES 4 and 5 are two enlarged sectional views showing two different embodiments of the base plate.

A casing 1 molded of insulating plastic material rests on studs 7 and has a rear wall 2 and two side walls 3 decreasing in height towards a front wall. The rear wall 2 of the casing 1 has a transparent cover 4 articulated thereto by a hinge 5 which incorporates a microswitch 6.

The casing 1 encloses a heat conductive support comprising a metal plate 8 incorporating a heating resistor 9 connectable to an electric power source and controlled by a thermostat 10 adapted to cut off the supply of current, as a predetermined temperature is reached. The microswitch 6 is placed in series in the supply circuit for the resistor 8 and is connected to the hinge 5 for the cover plate to allow electric current to flow to the heating plate 9 only when the cover plate is fully open, as shown in dash lines in FIGURE 2, and to cut off the supply circuit on closure of the cover plate. The heating plate 8 is provided on its top face with heat conductive elements in the form of conductor elements or projections 11 engaging hair curlers 13. The heat conductive projections 11 have their top portion of frusto-conical shape 12, see FIG. 3, for assisting in centering and retaining the hair curlers. The elements 11 extend in height beyond the plate 8 by an extent equalling a small fraction of the height of the hair curlers 13.

The height of the elements 11 conveniently ranges be tween and of the height of the hair curlers 13.

Each hair curler 13 includes a metal casing 14, having a bottom 15 which is formed with a frusto-conical recess 16 for interfitting with the frusto-conical ends 12 of each projection 11. An inner hollow space 18 in the metal casing 14 contains a heat storing substance 10, such as water or a water-wax mixture. A core 17 of a material of high heat conductivity may be positioned in the central portion of the casing 14 and extends axially upwardly within the casing from its bottom 15. The core generally may comprise a copper cylinder welded to the middle of the bottom 15.

The outer surface of the metal casing 14 is provided with a coating 20 of plastic, such as polyamide resin, provided .at the middle of the bottom 15 with an opening 21 to allow the bottom 15 to directly contact and fit on one of the heat conductive elements 11 on the heating plate 8. By eflect of the interfit of the members 11 and 15 heat is rapidly transmitted from the plate 8 heated by the resistor 9 to the metal casing 14 and heat storing substance 19 which subsequently slowly transmits it through the casing 14 to the coating of plasic on which the hair to be curled is wound in a known manner, thereby affording long and efficient use of the curler. The copper cylinder 17 accelerates transmission of heat to the heat storing substance 19; however, the cylinder 17 is not essential, for it was found, in actual use that a satisfactory transmission of heat already results from the interfit of the members 11, 15.

A heat insulating diaphragm 22 is arranged over the heating plate 8 at a substantially higher level than the conductive elements 11 and is formed with a plurality of through holes 23 coaxial with the elements 11 through which the hair curlers extend. This avoids any direct contact of the users hands with the hot surfaces of the plate 8 and elements 11, preventing scorching. The diaphragm 22 is provided on its forward edge with an inclined portion 24 having arranged thereon two indicating lamp lights 25, 26, the lamp 25 indicating that the electric resistor is energized and the apparatus is operating, the lamp 26 being connected with the thermostat 1 and providing an intermittent light signal when the thermostat has cut-off the electric circuit of the resistor 9 as the predetermined temperature for heating the hair curlers is reached. The elements 11 extending from the heating plate 8 can be formed in various manners. In FIGURE 4 a projecting element 11a is obtained by punching the plate 8. In the embodiment shown in FIGURE an element 11b is made as a separate part having a mushroom shaped head 27 and a cylindrical stem 28 be secured to the plate 8.

What I claim is:

1. Apparatus for heating hair curlers of the type having a conductive plate-shaped supoprt with an electric heating element and a plurality of heat conductive elements extending at right angles from the support each adapted to extend into a hair curler for transmitting heat thereto, the inventive improvements wherein the heat conductive elements project from the support by an extent amounting to a minor portion of the length of the hair curlers, each hair curler comprising :a metal casing having a bottom portion shaped to interfit with one of the heat conductive elements, and having a heat insulating plastic coating on the outer surface of the casing except the shaped bottom portion, and a heat insulating diaphragm in a parallel spaced relationship to the conductive plate-shaped support, the diaphragm being spaced from the conductive plate-shaped support a distance exceeding the height of the conductive elements but substantially less than the length of the hair curlers, the diaphragm including openings coaxial with the said conductive elements, the openings being of a suitable size for the hair curlers to extend therethrough.

2. Apparatus as claimed in claim 1, wherein a heat storing substance fills at least part of the metal casing of the hair curler.

3. Apparatus as claimed in claim 1, wherein a heat conducting central core fixed to the bottom of the metal casing of the curler extends inwardly along a major portion of the length of the casing.

4. Apparatus for heating hair curlers of the type having a conductive plate-shaped support with an electric heating element and a plurality of heat conductive elements extending at right angles from the support each adapted to extend into a hair curler for transmitting heat thereto, the inventive improvements wherein the heat conductive elements project from the support by an extent amounting to a minor portion of the length of the hair curlers, each hair curler comprising a metal casing having a bottom portion shaped to interfit with one of the heat conductive elements, and having a heat insulating plastic coating on the outer surface of the casing except the shaped bottom portion, and .a heat insulating diaphragm in a parallel spaced relationship to the conductive plate-shaped sup port, the diaphragm being spaced from the conductive plate-shaped support a distance substantially less than the length of the hair curlers, the diaphragm including openings coaxial with the said conductive elements, the openings being of a suitable size for the hair curlers to extend therethrough an insulating casing enclosing the conductive plate-shaped support, the casing having a transparent cover hinged thereto, a switch actuated by the hinge and connected in an electric circuit to cut off electric current supply to the electric heater of the plate-like support when the cover is closed and pass current when the cover is open.

5. Apparatus as claimed in claim 4, further comprising a first indicating light adapted to indicate operation of the electric heating element, and a second indicating light operating intermittently to indicate disconnection of the current supply due to the action of a thermostat in heat exchange relationship to the plate-shaped conductive support and connected in an electric circuit to the heating element.

References Cited UNITED STATES PATENTS 2,133,573 10/1938 Rifle 13236 X 2,152,261 3/1939 Kahn 219-452 X 2,165,552 7/1939 Johnson 219242 2,380,154 7/ 1945 Dickerson 2,541,639 2/1951 Cook 219-506- X 2,584,999 2/1952 Flournoy 13237 3,038,986 6/1962 Molitor 219--387 3,103,934 9/1963 Sabourin 132-33 3,228,403 1/ 1966 Pasternack.

3,257,541 6/1966 Jorgensen 2,19222 ANTHONY BARTIS, Primary Examiner.

US54215166 1966-01-10 1966-04-12 Electrically heated hair curling apparatus Expired - Lifetime US3410985A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
IT78766 1966-01-10

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US3410985A true US3410985A (en) 1968-11-12

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US54215166 Expired - Lifetime US3410985A (en) 1966-01-10 1966-04-12 Electrically heated hair curling apparatus

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US (1) US3410985A (en)
BE (1) BE680254A (en)
CH (1) CH444396A (en)
GB (1) GB1140369A (en)
NL (1) NL6605720A (en)
SE (1) SE339292B (en)

Cited By (22)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3515152A (en) * 1967-01-27 1970-06-02 Lady Jayne Hair Products Ltd Hair waving devices
US3519793A (en) * 1967-03-08 1970-07-07 Solomon Nathan Hair curler
US3541302A (en) * 1968-06-19 1970-11-17 Nichiei Denki Sangyo Kk Heat storing curling bobbin and heating device
US3581055A (en) * 1968-06-03 1971-05-25 Nichiel Denki Sangyo Kk Curling bobbin and heater
US3600552A (en) * 1968-06-17 1971-08-17 Sperry Rand Corp Portable electric appliance
US3610878A (en) * 1969-02-24 1971-10-05 Samson Domimion Ltd Electrically heated hairsetter
US3632971A (en) * 1970-01-27 1972-01-04 Texas Instruments Inc Self-limiting electric hair curler heater
DE2141209A1 (en) * 1970-09-18 1972-03-23
US3666915A (en) * 1970-07-13 1972-05-30 Northern Electric Co Steam or dry hair curler heating apparatus
US3689738A (en) * 1969-07-31 1972-09-05 Nikolaus Laing Vessel for meltable heat storage masses
US3701882A (en) * 1969-08-07 1972-10-31 Matsushita Electric Works Ltd Heating device for hair curlers and clips
US3766930A (en) * 1971-06-30 1973-10-23 Bristol Myers Co Vapor treatment hair curler
US4658114A (en) * 1986-05-05 1987-04-14 Hong Andrew M P Heater and holder for soft roller hair curlers
US4661683A (en) * 1986-01-07 1987-04-28 Glucksman Dov Z Hair curling set
US4857708A (en) * 1988-05-02 1989-08-15 Demars Robert A Towelette heating device
US5117090A (en) * 1990-07-23 1992-05-26 Askins Vicki R Electric hair curling apparatus including a removable battery pack and a fiber optic cable illumination arrangement
US5606983A (en) * 1994-12-02 1997-03-04 Monty; Lawrence P. Hair care appliance with thermochromic hair curlers and method of manufacturing same
US6978898B2 (en) 2002-01-09 2005-12-27 Conair Corporation Hair setting assembly
US20090288676A1 (en) * 2006-12-29 2009-11-26 Gook Hyun Shim Permanent lod, and heating device for effectively transferring heat to the permanent lod
US20110092923A1 (en) * 2009-10-20 2011-04-21 Shrikant S Bhamre Portable Eye-wiping Device
USD758843S1 (en) * 2015-04-07 2016-06-14 Gopro, Inc. Electronics package
USD793223S1 (en) * 2016-01-28 2017-08-01 Zansors Llc Retail package for wearables

Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2133573A (en) * 1937-04-28 1938-10-18 William V Rifle Hair waving apparatus
US2152261A (en) * 1936-06-30 1939-03-28 Estate Stove Co Stove
US2165552A (en) * 1936-12-22 1939-07-11 Anthon G Johnson Permanent waving apparatus
US2380354A (en) * 1943-03-24 1945-07-10 Farrel Birmingham Co Inc Builder motion
US2541639A (en) * 1947-02-07 1951-02-13 Nestle Le Mur Company Electric preheater for hair curlers
US2584999A (en) * 1947-01-24 1952-02-12 Margaret Thurston Flournoy Curling iron
US3038986A (en) * 1958-03-17 1962-06-12 Victor D Molitor Display device for heated food
US3103934A (en) * 1959-03-04 1963-09-17 Barbu Niculescu Heating device for setting hair and permitting of accelerated drying
US3228403A (en) * 1962-05-28 1966-01-11 Pasternack Jacob Hair curler
US3257541A (en) * 1963-02-12 1966-06-21 Arne Bybjerg Pedersen Apparatus for heating and setting hair

Patent Citations (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2152261A (en) * 1936-06-30 1939-03-28 Estate Stove Co Stove
US2165552A (en) * 1936-12-22 1939-07-11 Anthon G Johnson Permanent waving apparatus
US2133573A (en) * 1937-04-28 1938-10-18 William V Rifle Hair waving apparatus
US2380354A (en) * 1943-03-24 1945-07-10 Farrel Birmingham Co Inc Builder motion
US2584999A (en) * 1947-01-24 1952-02-12 Margaret Thurston Flournoy Curling iron
US2541639A (en) * 1947-02-07 1951-02-13 Nestle Le Mur Company Electric preheater for hair curlers
US3038986A (en) * 1958-03-17 1962-06-12 Victor D Molitor Display device for heated food
US3103934A (en) * 1959-03-04 1963-09-17 Barbu Niculescu Heating device for setting hair and permitting of accelerated drying
US3228403A (en) * 1962-05-28 1966-01-11 Pasternack Jacob Hair curler
US3257541A (en) * 1963-02-12 1966-06-21 Arne Bybjerg Pedersen Apparatus for heating and setting hair

Cited By (25)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3515152A (en) * 1967-01-27 1970-06-02 Lady Jayne Hair Products Ltd Hair waving devices
US3519793A (en) * 1967-03-08 1970-07-07 Solomon Nathan Hair curler
US3581055A (en) * 1968-06-03 1971-05-25 Nichiel Denki Sangyo Kk Curling bobbin and heater
US3600552A (en) * 1968-06-17 1971-08-17 Sperry Rand Corp Portable electric appliance
US3541302A (en) * 1968-06-19 1970-11-17 Nichiei Denki Sangyo Kk Heat storing curling bobbin and heating device
US3610878A (en) * 1969-02-24 1971-10-05 Samson Domimion Ltd Electrically heated hairsetter
US3689738A (en) * 1969-07-31 1972-09-05 Nikolaus Laing Vessel for meltable heat storage masses
US3701882A (en) * 1969-08-07 1972-10-31 Matsushita Electric Works Ltd Heating device for hair curlers and clips
US3632971A (en) * 1970-01-27 1972-01-04 Texas Instruments Inc Self-limiting electric hair curler heater
US3666915A (en) * 1970-07-13 1972-05-30 Northern Electric Co Steam or dry hair curler heating apparatus
DE2141209A1 (en) * 1970-09-18 1972-03-23
US3766930A (en) * 1971-06-30 1973-10-23 Bristol Myers Co Vapor treatment hair curler
US4661683A (en) * 1986-01-07 1987-04-28 Glucksman Dov Z Hair curling set
US4658114A (en) * 1986-05-05 1987-04-14 Hong Andrew M P Heater and holder for soft roller hair curlers
US4857708A (en) * 1988-05-02 1989-08-15 Demars Robert A Towelette heating device
US5117090A (en) * 1990-07-23 1992-05-26 Askins Vicki R Electric hair curling apparatus including a removable battery pack and a fiber optic cable illumination arrangement
US5606983A (en) * 1994-12-02 1997-03-04 Monty; Lawrence P. Hair care appliance with thermochromic hair curlers and method of manufacturing same
US5798404A (en) * 1994-12-02 1998-08-25 Monty; Lawrence P. Hair care appliance with thermochromic hair curlers and method of manufacturing same
US6978898B2 (en) 2002-01-09 2005-12-27 Conair Corporation Hair setting assembly
US20090288676A1 (en) * 2006-12-29 2009-11-26 Gook Hyun Shim Permanent lod, and heating device for effectively transferring heat to the permanent lod
US20110092923A1 (en) * 2009-10-20 2011-04-21 Shrikant S Bhamre Portable Eye-wiping Device
US8357128B2 (en) * 2009-10-20 2013-01-22 Shrikant S Bhamre Portable eye-wiping device
USD758843S1 (en) * 2015-04-07 2016-06-14 Gopro, Inc. Electronics package
USD793223S1 (en) * 2016-01-28 2017-08-01 Zansors Llc Retail package for wearables
USD811870S1 (en) * 2016-01-28 2018-03-06 Zansors Llc Retail package for wearables

Also Published As

Publication number Publication date
NL6605720A (en) 1967-07-11
BE680254A (en) 1966-10-03
SE339292B (en) 1971-10-04
GB1140369A (en) 1969-01-15
CH444396A (en) 1967-09-30

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