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. 16, 1977
Filed:
Nov. 03, 1975
David H Weinstein, Brookshire, TX (US);
Joe W Keeney, Houston, TX (US);
Gregory M Haas, McLean, VA (US);
The Superior Oil Company, Houston, TX (US);
Abstract
A photochemical cell is disclosed which includes an anode of titanium, a cathode of platinum, and a suitable electrolyte. The anode has a thin film of titanium dioxide formed on it, and the anode and cathode are suitably configured in the electrolyte which is normally a very basic potassium hydroxide solution. When the anode is exposed to light of wavelength shorter than 415 nm, an emf of about 1 volt is found between the anode and the cathode so that an external current will flow from the cathode to the anode when they are connected. The cell also extracts O.sub.2 from a mixture of O.sub.2 and any other gases present.