Patent ID: 7753609

Claim:
A device for applying a personal care product, comprising: (a) an applicator and; (b) a product reservoir, wherein: the applicator is separable from the product reservoir and comprises: (i) a handle that is configured to house a current source; (ii) means for opening and closing an electric circuit; (iii) an applicator tip that comprises a working portion that is configured to convey product from the product reservoir to an application surface; and (iv) a printed circuit that comprises a heat generating portion and is capable of connecting to the current source, wherein the heat generating portion of the printed circuit is disposed inside the applicator tip; the working portion of the applicator tip is capable of conducting heat from the heat generating portion of the printed circuit to product disposed on the outer surface of the working portion of the applicator tip; and disposal of the applicator tip in the product reservoir causes opening of the electric circuit and the electric circuit is capable of being closed only after the applicator tip is withdrawn from the product reservoir.