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:
Nov. 15, 2022
Filed:
Aug. 02, 2018
The Swatch Group Research and Development Ltd, Marin, CH;
Nicolas Francois, Neuchatel, CH;
The Swatch Group Research and Development Ltd, Marin, CH;
Abstract
The invention relates to a capsule comprising a shell containing a transparent and thermally conducting liquid, particles having a thermochromic coating and particles having a photochromic coating, the thermochromic particles being bulkier than photochromic particles, the liquid being such that, within a first range of temperatures, its density is greater than the density of the thermochromic particles and than the density of the photochromic particles, and such that, within a second range of temperatures greater than those of the first range, the density of the photochromic particles is less than the density of the liquid, which is itself less than the density of the thermochromic particles.