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:
Jun. 20, 2023
Filed:
Dec. 22, 2017
Sandvik Intellectual Property Ab, Sandviken, SE;
Olle Eriksson, Sandviken, SE;
Henrik Häll, Sandviken, SE;
Sandvik Intellectual Property AB, Sandviken, SE;
Abstract
A connection tube () for connecting two tubes () of different alloys, wherein the connection tube has a central through-hole extending along a longitudinal axis and comprises a first end portion () of a first alloy, a second end portion () of a second alloy, and a middle portion () which is at least partly double-layered with said second alloy forming an annular inner layer and said first alloy forming an annular outer layer, wherein a metallic bond has been formed between said layers. The inner and outer layers are mechanically interlocked by means of at least one helically extending thread formed in an interface between said layers. The connection tube is manufactured from a base component and an outer component threaded onto the base component to form a work piece, which is hot worked to form a metallic bond.