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:
Apr. 28, 2020
Filed:
Sep. 29, 2017
Applicants:
Philip Dudt, North Bethesda, MD (US);
Roshdy George Barsoum, McLean, VA (US);
Inventors:
Philip Dudt, North Bethesda, MD (US);
Roshdy George Barsoum, McLean, VA (US);
Assignee:
The United States of America as represented by the Secretary of the Navy, Washington, DC (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
C21D 7/06 (2006.01); B21D 26/00 (2006.01);
U.S. Cl.
CPC ...
C21D 7/06 (2013.01); B21D 26/00 (2013.01);
Abstract
An apparatus and method for hardening and compacting an inner face of a cylindrical opening of a structure. The apparatus and method is directed towards the hardening and compaction of an elongated cylindrical opening by surrounding the inner face of the cylindrical opening with a glass tube, and initiating an explosive volume expansion of the glass. This in turn, creates a compressive force that acts on the inner face to compact and harden the surface.