The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Aug. 11, 1992
Filed:
Nov. 19, 1990
James L Bierschenk, Rowlett, TX (US);
Edward J Burke, Plano, TX (US);
Dwight A Johnson, Lancaster, TX (US);
Marlow Industries, Inc., Dallas, TX (US);
Abstract
An apparatus for generating cold and hot for application selectively by contact on an object having a paint or coating whose color changes in response to cold and hot temperatures. The apparatus is easy to hold and handle with one hand while holding an object for application, e.g., a doll or toy car, in the other hand. The apparatus includes a battery powered thermoelectric device having a cold sink shaped to form a cold applicator for cooling the paint sufficiently to change its color, and a heat sink shaped to form a heat applicator for changing back the color. For a doll, the cold sink applicator is used to change, for example, the natural color of the lips and cheeks to a make-up color, and a heat sink shaped to form a comb for combing the doll's hair and a heat applicator for returning the natural color of the doll's lips and cheeks through heat application.