HAIR-SETTING DEVICE

• US 3,594,543 A
• Filed: 08/11/1969
• Issued: 07/20/1971
• Est. Priority Date: 08/11/1969
• Status: Expired due to Term

• Current Assignee: Hamilton Beach, Inc. (Hamilton Beach Brands Holding Co.)
• Original Assignee: Gus Wallin
• Inventors: Wallin, Gus
• Application Number:
  US04/848,954
• Time in Patent Office: 708 Days
• US Class Current: 219/222
• CPC Class Codes: A45D 4/16 Independent devices characterised by heating the hair-curling or hair-waving means before use A45D1/20 takes precedence

Abstract

A hair-setting device comprises a roller containing an electric heating element with exposed contacts and a ferrous alloy having a selected Curie temperature. The device also comprises a charging station having electric current supply contacts and a magnet adjacent the contacts. In use, the roller is held with its contacts in charging engagement with the contacts of the charging station by the attraction of the magnet to the alloy. When the heating element delivers sufficient heat to the alloy, the alloy is no longer attracted to the magnet and the roller drops, ready for use.

Claims

1. A hair-setting device comprising:

a. a setting element containing an electric heating element with charging contacts at spaced points thereon and alloy means of a preselected Curie temperature, the alloy means being in heat exchange relation with the heating element, and b. a charging station presenting spaced electric-supply contacts and magnet means adapted by cooperative relation with the alloy means to hold the setting element with its charging contacts engaging the supply contacts respectively in conductive relation until the heating element heats the alloy means to its Curie temperature whereupon the setting element is released by the magnet means from the conductive relation, and means for disengaging the released setting element from said supply contacts.

2. A hair-setting device as described in claim 1 wherein the setting element is a cylinder on which hair may be wound.

3. A hair-setting device as described in claim 2 wherein the spaced contacts are spindles at the respective ends of the cylinder projecting endwise of the cylinder.

4. A hair-setting device as described in claim 3 wherein the charging station provides spaced aligned tracks for the spindles leading the cylinder with spindles in horizontal disposition first downward and toward the supply contacts from a loading means and then downward and away from the supply contacts to a receiving means.

5. A hair-setting device as described in claim 4 wherein a portion of the station surrounds the tracks and protects the supply contacts from exposure.

6. A hair-setting device as described in claim 1 wherein the electric heating element is wound on an insulated cylindrical surface and the ferrous alloy means is in sleeve form and surrounds the electric heating element.

7. A hair-setting device as described in claim 6 wherein the cylindrical surface is the exterior of an anodized aluminum core and a layer of heat-insulating material is disposed between the electric heating element and the sleeve.

8. A hair-setting device as described in claim 2 wherein the exterior of the curling cylinder is plastic and formed with nibs.

9. A heating station and an object to be heated, the object containing an electric heating element connected to spaced electric contacts and magnetic alloy means having a selected Curie temperature, the alloy means and the heating element being in heat exchange relation;

the station having spaced charging contacts with means for supplying power thereto and a magnet adapted to hold the object by cooperation with the alloy means with the contacts of the object engaging the contacts of the station until the alloy means reaches the Curie temperature of the alloy means whereupon the heated object is released from the influence of the magnet, and means to move the object away from the magnet when the influence of the magnet is absent.

10. An electric supply station and an object containing a heating element to be heated, the object also containing Curie alloy mEans in heat exchange relation to the heating element, the element being connected to electric pickup contact means on the object;

the electric supply station having electric supply contact means and a magnet adapted to cooperate with and magnetically attract the alloy means to thereby hold the object with the supply and pickup contact means in electrically complete relation activating the heating element until the alloy means reaches its Curie temperature whereupon the magnetic attraction ceases, and means to move the object away from the electrically complete relation when the magnetic attraction ceases.

11. The combination as described in claim 10 wherein the means for moving the object away is the force of gravity.

12. The combination as described in claim 10 wherein the means for moving the object away operates continuously but is not effective to move the object during the magnetic attraction.

13. A heating station and an object having at least a part to be heated, the object containing an electric heating element in the part and connected to electric pickup contact means on the object, and a member of Curie alloy, the element and the member being in heat exchange relation;

the station having spaced electric supply contact means with means for supplying electric power to the supply contacts, and magnet means adapted to hold the object by attraction to the alloy means with the pickup contact means in electrically conductive relation with the supply contact means until the alloy means reaches its Curie temperature and the magnet means no longer attracts the alloy means, and means to move the object away from the magnet means so that the contact means are not in conductive relation.