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:
May. 17, 2022
Filed:
May. 02, 2017
Pandrol, Raismes, FR;
Pierre Bordery, Vieux Conde, FR;
Frédéric Delcroix, Helesmes, FR;
Abstract
The present invention relates in particular to a mold (M) for aluminothermic welding of a metal rail (), which comprises at least two substantially identical pieces or shells (), configured to be temporarily assembled opposite one another and on either side of said rail () to enclose the head (), web () and foot () of this rail (), each piece or shell () having an upper opening (), which opens onto an internal cavity () bounded by walls () configured to enclose the head (), the web () and the foot () of said rail (), characterized by the fact that said internal cavity () comprises a compressible sealing coating () only against the walls () configured to enclose said web (), foot () and underside of the head (), with the exception of the rest of the head () and the underside of the foot ().