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:
Jan. 27, 2026
Filed:
Nov. 21, 2022
University of Maryland, College Park, College Park, MD (US);
Diakont Advanced Technologies, Inc., Carlsbad, CA (US);
Liangbing Hu, Rockville, MD (US);
Paul Albertus, Takoma Park, MD (US);
Qi Dong, Newton, MA (US);
Chengwei Wang, College Park, MD (US);
Edward Petit De Mange, Carlsbad, CA (US);
University of Maryland, College Park, College Park, MD (US);
Diakont Advanced Technologies, Inc., Carlsbad, CA (US);
Abstract
A system for in situ repair of a metal pipe has a pipe repair head, an actuation assembly, an electrical power supply, and a controller. The pipe repair head can have an arm extending along a radiation direction of the pipe and a Joule heating element coupled to a distal end portion of the arm. The actuation assembly can move the pipe repair head along the axial and/or circumferential directions of the metal pipe. The controller controls the actuation assembly to position the pipe repair head with respect to a surface portion of the inner circumferential wall. The controller can then control the electrical power supply to apply a current pulse to the Joule heating element so as to generate a temperature of at least 1000° C. proximal to the surface portion, thereby sintering a metal powder in a slurry on the surface portion to form a metal repair layer.