US 10,557,579 B2
Joint made of shape memory alloy and uses thereof
Alan Zaragoza Labes, Rio de Janeiro (BR); Ana Maria Guimarães Guerreiro, Rio de Janeiro (BR); Thiago Simões Castanheira Francis Chehuan, Rio de Janeiro (BR); Raquel Silveira Borges, Rio de Janeiro (BR); and Sandro Eugenio Da Silva, Rio de Janeiro (BR)
Assigned to FMC TECHNOLOGIES DO BRASIL LTDA, Rio de Janeiro (BR)
Appl. No. 15/569,892
Filed by FMC TECHNOLOGIES DO BRASIL LTDA, Rio de Janeiro (BR)
PCT Filed Apr. 27, 2015, PCT No. PCT/BR2015/050049
§ 371(c)(1), (2) Date Oct. 27, 2017,
PCT Pub. No. WO2016/172772, PCT Pub. Date Nov. 3, 2016.
Prior Publication US 2018/0119856 A1, May 3, 2018
Int. Cl. F16L 25/02 (2006.01); C22C 19/05 (2006.01); E21B 34/04 (2006.01)
CPC F16L 25/02 (2013.01) [C22C 19/051 (2013.01); E21B 34/04 (2013.01)] 10 Claims
OG exemplary drawing
 
1. A connection of a memory alloy material comprising a sleeve connection made of a shaped memory alloy material, originally manufactured with an internal diameter shorter than an external diameter of a tubing, internally having a cover material made of dielectric material and, most internally, a layer of an anti-corrosive material which is contiguous to an external face of said tubing, said layer of an anti-corrosive material internally having protruding portions designed to grasp an external surface of the tubing, forming streaks, and said anti-corrosive material comprising a nickel-chrome material having added molybdenum and niobium.