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:
Sep. 15, 2026
Filed:
May. 31, 2024
Applicant:
Abb Schweiz Ag, Baden, CH;
Inventors:
Assignee:
ABB Schweiz AG, Baden, CH;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
B28B 1/00 (2006.01); B28B 11/00 (2006.01); C22C 1/10 (2023.01); C22C 29/00 (2006.01); C22C 29/08 (2006.01);
U.S. Cl.
CPC ...
B28B 1/007 (2013.01); C22C 1/1026 (2013.01); C22C 29/005 (2013.01); C22C 29/08 (2013.01); B28B 11/00 (2013.01);
Abstract
A method for forming a contact piece for a circuit breaker, the contact piece comprising a reinforcement phase and a conductive phase, the method comprising: providing a slurry of the reinforcement phase in liquid; freeze casting the slurry, to form a cast comprising a frozen liquid structure and a reinforcement phase structure; removing the frozen liquid structure from the cast, to form a foam comprising the reinforcement phase structure; sintering the foam, to form a sintered foam; and infiltrating the sintered foam with the conductive phase, to form a piece part.