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. 04, 1997
Filed:
Mar. 13, 1995
Hugo I de Lasa, London, CA;
Julio Valladares, London, CA;
University of Western Ontario, London, CA;
Abstract
The reactor has two tubes arranged concentrically, one having a larger diameter than the other, the tubes thus defining an inner channel and an outer channel. The inner channel contains an elongated light source, such as a bulb or a fiber optic bundle receiving sunlight from a solar collector, radiating light outwardly, the light including a substantial component of light having a wavelength of less than 390 nm. The outer channel has at least one and preferably a number of angled conical baskets arranged therein, each basket covering all of the channel and having a face supporting a fiber glass mesh thereon, exposed towards the light. An alternative embodiment reflects sunlight inwardly towards a single tube with baskets. Each basket has a plurality of small apertures therethrough to permit water to pass therethrough, and the mesh is impregnated with TiO.sub.2 particles. Preferably, the inner surface of the outer channel is reflective. The mesh is prepared by a process which includes treatment of the TiO.sub.2 particles with methanol, preferably in a 25% solution with water, or with some other suitable dispersant prior to placement on the substrate.