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:
Dec. 27, 2011
Filed:
Sep. 22, 2010
Robert L. Hirsch, Alexandria, VA (US);
Gregory Scott Hirsch, Washington, DC (US);
Robert L. Hirsch, Alexandria, VA (US);
Gregory Scott Hirsch, Washington, DC (US);
Other;
Abstract
An apparatus, method, and system for producing hydrogen gas by mechanical scraping of a surface of an aluminum-containing material, in the presence of an aqueous medium, the apparatus including: (a) a reaction chamber having a discharge port, and adapted to sealably contain the aqueous medium; (b) an aluminum-containing workpiece having a working surface; (c) a scraping mechanism having a brush adapted to contact the working surface, the workpiece and the scraping element disposed within the chamber, the surface and the scraping element adapted to move in a relative motion, whereby, in an operating condition, the scraping element scrapes against the working surface to effect a liberation of aluminum-containing particles from the workpiece, the chamber adapted to be substantially sealed with respect to an ambient environment, up to a superatmospheric pressure threshold, and further adapted whereby, during contacting of the aqueous medium and the particles within the chamber, the hydrogen gas is evolved and selectively discharged through the discharge port, when a pressure in the chamber exceeds the threshold.